US3601207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter assembly
Assignee: LAWRENCE Manufacturing CO
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Filing: 1969-05-19
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Granted: 1971-08-24
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Expires: 1989-05-19
Abstract
Abstract A cutter assembly comprising a cage support in which a cutter is rotatably mounted on a shaft, the shaft and support having surfaces which are mutually engageable, and/or arranged for receiving penetrating hardware, to restrain the shaft against rotation. The cage support carries on integral socket for replaceably securing a scraper.
Inventors
- 👤 William D Coski
- 👤 William H Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:41
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/30; E21B; E21B10/00; E21B10/08; E21B10/10
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
112 words
A cutter assembly, comprising: a cutter shaft having a longitudinal axis; and means supporting said shaft at least on one end of said shaft axis; wherein said supporting means comprises a cage-type support having oppositely disposed sidewalls joined by a further wall; said shaft has at least one given linear surface which lies transverse to said axis; at least one of said sidewalls includes means having at least one complementary linear surface in mating engagement with said given surface to restrain said shaft against rotation; and said further wall includes means for replaceably and only frictionally mounting a scraper for clearing a path in advance of a cutter mounted to said shaft.
Claim 2
Dependent Claim
112 words
A cutter assembly, comprising: a cutter shaft having a longitudinal axis; and means supporting said shaft at least on one end of said shaft axis; wherein said supporting means comprises a cage-type support having oppositely disposed sidewalls joined by a further wall; said shaft has at least one given linear surface which lies transverse to said axis; at least one of said sidewalls includes means having at least one complementary linear surface in mating engagement with said given surface to restrain said shaft against rotation; and said further wall includes means for replaceably and only frictionally mounting a scraper for clearing a path in advance of a cutter mounted to said shaft.
Claim 3
Dependent Claim
25 words
A cutter assembly, according to claim 1, wherein: said one sidewall has a relieved area therein in which a portion of said shaft is disposed.
Claim 4
Dependent Claim
27 words
A cutter assembly, according to claim 2, further including: fastener means, in penetration of said one sidewall and said portion securing said portion, in said relieved area.
Claim 5
Dependent Claim
14 words
A cutter assembly, according to claim 3, wherein: said fastening means comprise a pin.
Claim 6
Dependent Claim
23 words
A cutter assembly, according to claim 2, wherein: said relieved area defines a cove extending into one lateral edge of said one sidewall.
Claim 7
Dependent Claim
15 words
A cutter assembly, according to claim 5, wherein: said cove is defined by rectilinear sides.
Claim 8
Dependent Claim
39 words
A cutter assembly, according to claim 6, wherein: said shaft, excepting at least said portion, is of circular cross section; and said portion has parallel, flatted surfaces, extending perpendicularly from adjacent chordal shoulders, which matingly engage said rectilinear sides.
Claim 9
Dependent Claim
15 words
A cutter assembly, according to claim 7, wherein: said chordal shoulders abut said one sidewall.
Claim 10
Dependent Claim
15 words
A cutter assembly, according to claim 5, wherein: said cove is defined by arcuate sides.
Claim 11
Dependent Claim
36 words
A cutter assembly, according to claim 9, wherein: said arcuate sides each have a different radius which sides together define a semiannular, stepped shoulder therebetween; and a terminal end of aid portion abuttingly engages said shoulder.
Claim 12
Dependent Claim
54 words
A cutter assembly, according to claim 10, wherein: said shaft excepting at least said portion, is of circular cross section; and said portion has a flatted surface, extending perpendicularly from an adjacent chordal shoulder, and an arcuate, radial surface contiguous with said flatted surface, which arcuate surface nestingly engages one of said arcuate sides.
Claim 13
Dependent Claim
33 words
A cutter assembly, according to claim 11, wherein: said complementary linear-surfaced means comprise retainer means in fastened engagement with said one sidewall, and overlying said portion in restraining engagement with said flatted surface.
Claim 14
Dependent Claim
52 words
A cutter assembly, according to claim 12, wherein: said retainer means comprises a bar having one end in penetration of said one sidewall, and the other end thereof having a bolthole formed therethrough, and includes a bolt in penetration of said bolthole fastened in, and securing said bar to, said one sidewall.
Claim 15
Dependent Claim
22 words
A cutter assembly, according to claim 13, wherein: said one sidewall carries a rod-nut therewithin with which said bolt is threadedly engaged.
Claim 16
Dependent Claim
26 words
A cutter assembly, according to claim 9, wherein: said complementary linear-surfaced means comprise retainer means in fastened engagement with said one sidewaLl, and overlying said portion.
Claim 17
Dependent Claim
64 words
A cutter assembly, according to claim 15, wherein: said shaft has a first, linear, borehole formed therethrough, within said portion; and said retainer means comprises a pillow-block-type cap having a shaft-engaging surface, and a second linear borehole formed therethrough in registry with said first borehole, and a bolt fastened in, and securing said cap to, said one sidewall and restraining said shaft against rotation.
Claim 18
Dependent Claim
33 words
A cutter assembly, according to claim 16, wherein: said cap-bearing surfaces in abutting engagement with complementary surfaces of said one sidewall which are cooperative with said bolt to restrain said shaft against rotation.
Claim 19
Dependent Claim
20 words
A cutter assembly, according to claim 1, wherein: said mounting means comprises a socket defined by opposed and converging tracks.
Claim 20
Dependent Claim
34 words
A cutter assembly, according to claim 1, further including: cutter means carried by said shaft; and means interposed between said shaft and said cutter means facilitating rotation of the latter relative to the former.
Claim 21
Dependent Claim
15 words
A cutter assembly, according to claim 19, wherein: said rotation-facilitating means comprise spherical roller bearings.
Claim 22
Dependent Claim
38 words
A cutter assembly, according to claim 20, wherein: said cutter means include chamber means for accommodating said bearings; and said shaft has lubricant passageways formed therein, in communication with said chamber means, for lubricant-charging of said chamber means.
Claim 23
Dependent Claim
19 words
A cutter assembly, according to claim 21, further including: metal-to-metal, face-type seals closing said chamber means against foreign matter.
Claim 24
Dependent Claim
18 words
A cutter assembly, according to claim 21, further including compliant seals closing said chamber means against foreign matter.
Claim 25
Dependent Claim
33 words
A cutter assembly, according to claim 22, wherein: said seals comprise resiliently mounted metal annuluses rotatably with said cutter means and slidably engaged with, and resiliently constrained against races of said roller bearings.
References Cited (Backward Citations)
US1320394A
Cited
US1670092A
Cited
US1661715A
Cited
US1908049A
Cited
US1915527A
Cited
US2187037A
Cited
US2310584A
Cited
US3216513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |