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US4457444A Expired / Lapsed US ⏱️ 0.0 years remaining

Combine hopper cover

Assignee: Dat Agri Products Inc
•
Filing: 1983-02-15
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Granted: 1984-07-03
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Expires: 2003-02-15
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Abstract

Abstract A combine hopper cover is disclosed. The cover is arched and has raised ribs. A grain inspection door is included and has a flange portion and a recessed portion defining shoulders therebetween. The shoulders form guides for the door to slide along the raised ribs of the arched cover. Stretchable straps hold the cover and the inspection door to the combine hopper.

Inventors

  • 👤 Allan N. Wold

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 20:48
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/02; B65D88/12; B65D88/122; B65D88/124; B65D88/126

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 220 words
A cover for a combine hopper, said hopper having sidewalls defining an open top, said cover comprising: an integral covering member including flange means for mating with the top of said sidewalls, said member including an arcuately shaped sheet between opposite first sides of said flange means, said member including substantially flat ends extending between said sheet and each second side of said flange means, said sheet having a plurality of raised ribs with an opening between a pair of said ribs; a door for covering said opening, said door having a flange portion with a pair of opposite sides riding on said pair of ribs, said door having a recessed portion extending between said pair of ribs to provide shoulders where said recessed portion meets said flange portion, said shoulders providing guide surfaces for sliding said door along said ribs; a plurality of first straps for holding said member to said hopper; a second strap for holding said door to said covering member; first means for attaching each of said first straps to said member; second means for attaching said second strap to said door; and third means for attaching each of said first and second straps to said hopper; whereby said covering member is held to said hopper and said door is slideably held to said covering member.
Claim 2
Dependent Claim 220 words
A cover for a combine hopper, said hopper having sidewalls defining an open top, said cover comprising: an integral covering member including flange means for mating with the top of said sidewalls, said member including an arcuately shaped sheet between opposite first sides of said flange means, said member including substantially flat ends extending between said sheet and each second side of said flange means, said sheet having a plurality of raised ribs with an opening between a pair of said ribs; a door for covering said opening, said door having a flange portion with a pair of opposite sides riding on said pair of ribs, said door having a recessed portion extending between said pair of ribs to provide shoulders where said recessed portion meets said flange portion, said shoulders providing guide surfaces for sliding said door along said ribs; a plurality of first straps for holding said member to said hopper; a second strap for holding said door to said covering member; first means for attaching each of said first straps to said member; second means for attaching said second strap to said door; and third means for attaching each of said first and second straps to said hopper; whereby said covering member is held to said hopper and said door is slideably held to said covering member.
Claim 3
Dependent Claim 45 words
A cover in accordance with claim 1 wherein said door is made of fiberglass and wherein said second attaching means includes a wire loop fiberglassed to said door, said second strap having a hook attached at an end, said hook for attaching to said loop.
Claim 4
Dependent Claim 86 words
A cover in accordance with claim 1 wherein said covering member includes an upwardly extending first lip along a first side of said opening, said first lip being spaced from said flange means and extending between said pair of ribs, said door having a downwardly extending second lip for contacting said first lip and preventing said door from sliding beyond a position which closes said opening, whereby said ribs and said first lip contact said door to provide a weather seal against rain, snow and wind.
Claim 5
Dependent Claim 41 words
A cover in accordance with claim 3 wherein said door includes a second side opposite said second lip, said second side having a flat portion parallel to said flange means to rest on said flange means to provide a weather seal.
Claim 6
Dependent Claim 296 words
A cover for a combine hopper, said hopper having sidewalls defining an open top, said cover comprising: an integral translucent fiberglass covering member including flange means for mating with the top of said sidewalls, said member including an arcuately shaped sheet between opposite first sides of said flange means, said member including substantially flat ends each extending between a second side of said flange means and said sheet, said sheet having a plurality of raised, integral ribs with an opening between a pair of said ribs, said covering member including an upwardly extending first lip along a side of said opening spaced from said flange means and extending between said pair of ribs; a door for covering said opening, said door having a flange portion with a pair of opposite sides riding on said pair of ribs, said door having a recessed portion extending between said pair of ribs to provide shoulders where said recessed portion meets said flange portion, said shoulders providing guide surfaces for sliding said door along said ribs, said door having a downwardly extending second lip for contacting said first lip and preventing said door from sliding beyond a position which closes said opening; a plurality of stretchable straps for holding said member to said hopper and for holding said door to said covering member, said straps each including a hook at one end thereof; a plurality of first wire loops fiberglassed to said covering member and a second wire loop fiberglassed to said door, said first and second wire loops held by said hooks of said straps; and means for attaching a second end of each of said straps to said hoppers; whereby said covering member is held to said hopper and said door is slideably held to said covering member.
Claim 7
Dependent Claim 296 words
A cover for a combine hopper, said hopper having sidewalls defining an open top, said cover comprising: an integral translucent fiberglass covering member including flange means for mating with the top of said sidewalls, said member including an arcuately shaped sheet between opposite first sides of said flange means, said member including substantially flat ends each extending between a second side of said flange means and said sheet, said sheet having a plurality of raised, integral ribs with an opening between a pair of said ribs, said covering member including an upwardly extending first lip along a side of said opening spaced from said flange means and extending between said pair of ribs; a door for covering said opening, said door having a flange portion with a pair of opposite sides riding on said pair of ribs, said door having a recessed portion extending between said pair of ribs to provide shoulders where said recessed portion meets said flange portion, said shoulders providing guide surfaces for sliding said door along said ribs, said door having a downwardly extending second lip for contacting said first lip and preventing said door from sliding beyond a position which closes said opening; a plurality of stretchable straps for holding said member to said hopper and for holding said door to said covering member, said straps each including a hook at one end thereof; a plurality of first wire loops fiberglassed to said covering member and a second wire loop fiberglassed to said door, said first and second wire loops held by said hooks of said straps; and means for attaching a second end of each of said straps to said hoppers; whereby said covering member is held to said hopper and said door is slideably held to said covering member.

References Cited (Backward Citations)

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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) 1987-07-03 1988-01-02 1988-07-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-07-03 1992-01-02 1992-07-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-07-03 1996-01-02 1996-07-03 $7700.00 Window Closed / Lapsed

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