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US4141202A Expired / Lapsed US ⏱️ 0.0 years remaining

Mowing implement

Assignee: Multinorm BV
•
Filing: 1977-10-21
•
Granted: 1979-02-27
•
Expires: 1997-10-21
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Abstract

Abstract A mowing implement comprising a housing extending transversely of the direction of movement of the implement, a plurality of cutting members rotatably journalled on said housing and a driving gear train driving the cutting members and arranged in said housing and formed by a series of gears, each cutting member being rigidly secured with a driving gear of said series, while the driving gears are coupled with one another by means of coupling gears, is simplified, if at least one gear of said series is rotatably journalled with respect to the housing by means of a ring of rolling bearing elements, at least one roller path of said elements being shaped in the material of the gear or in the material of a hub which is integrally connected with the housing.

Inventors

  • 👤 Pieter A. Oosterling
  • 👤 Hendricus C. VAN Staveren

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 05:39
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D34/66; A01D34/664

Claims Analysis

Total Claims: 29
Claim 1
Independent Claim 216 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter much greater than said width of the housing, the spacing between said driving gears being such that said circular paths do not overlap, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, each idler gear forming the outer race of its associated idler bearing means.
Claim 2
Dependent Claim 216 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter much greater than said width of the housing, the spacing between said driving gears being such that said circular paths do not overlap, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, each idler gear forming the outer race of its associated idler bearing means.
Claim 3
Dependent Claim 21 words
A mowing implement according to claim 1 wherein each idler bearing means includes an inner race formed integrally with said housing.
Claim 4
Dependent Claim 39 words
A mowing implement according to claim 1 including an idler shaft for each idler gear, each idler shaft being permanently fixed to said housing and each idler bearing means including an inner race formed in an associated idler shaft.
Claim 5
Dependent Claim 29 words
A mowing implement as defined in claim 1 wherein each idler bearing means includes an inner race ring sandwiched between and permanently secured to opposing portions of said housing.
Claim 6
Dependent Claim 20 words
A mowing implement as defined in claim 4 wherein there are at least four idler gears in each set thereof.
Claim 7
Dependent Claim 200 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, each idler gear forming the outer race of its associated idler bearing means.
Claim 8
Dependent Claim 200 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, each idler gear forming the outer race of its associated idler bearing means.
Claim 9
Dependent Claim 200 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, each idler bearing means including an inner race formed integrally with said housing.
Claim 10
Dependent Claim 200 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, each idler bearing means including an inner race formed integrally with said housing.
Claim 11
Dependent Claim 218 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, an idler shaft for each idler gear, each idler shaft being permanently fixed to said housing and each idler bearing means including an inner race formed in an associated idler shaft.
Claim 12
Dependent Claim 218 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, an idler shaft for each idler gear, each idler shaft being permanently fixed to said housing and each idler bearing means including an inner race formed in an associated idler shaft.
Claim 13
Dependent Claim 207 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, each idler bearing means including an inner race ring sandwiched between and permanently secured to opposing portions of said housing.
Claim 14
Dependent Claim 207 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: an elongate housing having a selected narrow width so as easily to pass beneath the crop being cut; a series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of idler gears disposed between each adjacent pair of driving gears; a shaft connected with each driving gear and projecting upwardly through said housing and rolling bearing means journalling each such shaft for rotation about an axis fixed with respect to said housing; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and idler rolling bearing means journalling each idler gear for rotation about an axis fixed with respect to said housing, each idler bearing means including an inner race ring sandwiched between and permanently secured to opposing portions of said housing.
Claim 15
Dependent Claim 20 words
A mowing implement as defined in claim 8 wherein there are at least four idler gears in each set thereof.
Claim 16
Dependent Claim 20 words
A mowing implement as defined in claim 7 wherein there are at least four idler gears in each set thereof.
Claim 17
Dependent Claim 20 words
A mowing implement as defined in claim 1 wherein there are at least four idler gears in each set thereof.
Claim 18
Dependent Claim 20 words
A mowing implement as defined in claim 8 wherein there are at least four idler gears in each set thereof.
Claim 19
Dependent Claim 386 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: a straight line series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of an even number of idler gears disposed between each adjacent pair of driving gears, there being at least four idler gears in each set; said housing having an opening on its upper side at each location of a driving gear; a shaft connected with each driving gear and projecting upwardly therefrom to present an upper end concentric with an associated opening in said housing and bearing means rotatably journalling each such shaft for rotation about an axis fixed with respect to said housing and concentric with respect to said associated opening whereby to provide said uniformly spaced relation between said driving gears, said housing comprising upper and lower sections which are permanently joined and including first portions fixed to said housing at said openings which are aligned in a straight line with each other and which fix said axes with respect to the housing, said idler gears being identical to each other and having a diameter such that each set thereof spans between adjacent driving gears with all of said idler gears of the set being in mesh and with the opposite end idler gears of the set being in mesh with such adjacent driving gears; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and support means connecting each idler gear to said housing for rotation about an axis fixed with respect to the housing, each support means comprising idler rolling bearing means and including a second portion fixed to said housing, said second fixed portions being in straight line alignment with each other and with said first fixed portions whereby said housing and fixed portions as an integral unit establishes and maintains both the straight line alignment and spacing of all of said axes.
Claim 20
Dependent Claim 386 words
A mowing implement adapted to be transported in closely overlying relation to ground surface while cutting a swath of standing crop, comprising in combination: a straight line series of gears disposed within said housing in serially meshing arrangement, said series of gears comprising a plurality of driving gears disposed in uniformly spaced relation and a set of an even number of idler gears disposed between each adjacent pair of driving gears, there being at least four idler gears in each set; said housing having an opening on its upper side at each location of a driving gear; a shaft connected with each driving gear and projecting upwardly therefrom to present an upper end concentric with an associated opening in said housing and bearing means rotatably journalling each such shaft for rotation about an axis fixed with respect to said housing and concentric with respect to said associated opening whereby to provide said uniformly spaced relation between said driving gears, said housing comprising upper and lower sections which are permanently joined and including first portions fixed to said housing at said openings which are aligned in a straight line with each other and which fix said axes with respect to the housing, said idler gears being identical to each other and having a diameter such that each set thereof spans between adjacent driving gears with all of said idler gears of the set being in mesh and with the opposite end idler gears of the set being in mesh with such adjacent driving gears; a member fixed to the upper end of each shaft and sweeping a circular path having a diameter greater than said width of the housing, a cutter carried by each member and projecting therefrom such that each cutter sweeps a second circular path which overlaps the path swept by an adjacent cutter; and support means connecting each idler gear to said housing for rotation about an axis fixed with respect to the housing, each support means comprising idler rolling bearing means and including a second portion fixed to said housing, said second fixed portions being in straight line alignment with each other and with said first fixed portions whereby said housing and fixed portions as an integral unit establishes and maintains both the straight line alignment and spacing of all of said axes.
Claim 21
Dependent Claim 23 words
A mowing implement as defined in claim 14 wherein each second fixed portion defines the inner race of an idler rolling bearing means.
Claim 22
Dependent Claim 22 words
A mowing implement as defined in claim 15 wherein each idler gear forms the outer race of an idler rolling bearing means.
Claim 23
Dependent Claim 27 words
A mowing implement as defined in claim 16 wherein each inner race is defined by inwardly deformed portions of the upper and lower sections of the housing.
Claim 24
Dependent Claim 31 words
A mowing implement as defined in claim 16 wherein each inner race is formed by a ring sandwiched between and permanently secured to the upper and lower sections of said housing.
Claim 25
Dependent Claim 23 words
A mowing implement as defined in claim 17 wherein each inner race is formed by an idler shaft permanently fixed to said housing.
Claim 26
Dependent Claim 27 words
A mowing implement as defined in claim 15 wherein each inner race is defined by inwardly deformed portions of the upper and lower sections of the housing.
Claim 27
Dependent Claim 31 words
A mowing implement as defined in claim 15 wherein each inner face is formed by a ring sandwiched between and permanently secured to the upper and lower sections of said housing.
Claim 28
Dependent Claim 23 words
A mowing implement as defined in claim 15 wherein each inner race is formed by an idler shaft permanently fixed to said housing.
Claim 29
Dependent Claim 21 words
A mowing implement as defined in claim 15 wherein said first and second fixed portions are integral with said housing sections.

References Cited (Backward Citations)

US119640A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-02-26 1982-08-28 1983-02-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-02-26 1986-08-28 1987-02-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-02-26 1990-08-28 1991-02-27 $7700.00 Window Closed / Lapsed

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