Patent US3602970A successfully refreshed from Google Patents.
US3602970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch bar assembly for replaceable cover
Assignee: WARD TURNER MACHINERY CO
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Filing: 1969-04-14
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Granted: 1971-09-07
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Expires: 1989-04-14
Abstract
Abstract The proximate ends of a plastic roll sheathing are formed with offset shouldered flanges in opposition. These flanges extend into a rectangular groove in the surface of the roll body and together provide a mortise cavity into which a T-shaped tenon is fitted and secured to the body with fasteners. At least one of the ends of the sheathing is further extended so as to overlay the clamp joint so formed and abut the other end.
Inventors
- 👤 Charles E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:07
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/20; B26D2007/202; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4838; Y10T83/4841; Y10T83/929; Y10T83/9309; Y10T83/9312
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
153 words
In combination, a cylindrical roll having a transverse recess in the surface of said roll and extending in the longitudinal direction thereof, and a resilient cover sheet for said roll, said cover sheet having proximate ends positioned over said transverse recess, an offset flange on the undersurface of said cover sheet adjacent each said proximate end and projecting inwardly into said transverse recess, a shoulder on each said flange and arranged to oppose each other, with all said flanges and shoulders forming a mortise joint, a T-shaped tenon engaging all said shoulders of said sheet at said mortise joint, means for fastening said T-shaped tenon to said roll, one of the proximate ends of said cover sheet forming a flap over said T-shaped tenon and extending to abut with the other proximate end of said cover sheet, with the outer surface of said cover sheet forming a smooth continuation across said mortise joint.
Claim 2
Dependent Claim
153 words
In combination, a cylindrical roll having a transverse recess in the surface of said roll and extending in the longitudinal direction thereof, and a resilient cover sheet for said roll, said cover sheet having proximate ends positioned over said transverse recess, an offset flange on the undersurface of said cover sheet adjacent each said proximate end and projecting inwardly into said transverse recess, a shoulder on each said flange and arranged to oppose each other, with all said flanges and shoulders forming a mortise joint, a T-shaped tenon engaging all said shoulders of said sheet at said mortise joint, means for fastening said T-shaped tenon to said roll, one of the proximate ends of said cover sheet forming a flap over said T-shaped tenon and extending to abut with the other proximate end of said cover sheet, with the outer surface of said cover sheet forming a smooth continuation across said mortise joint.
Claim 3
Dependent Claim
45 words
In the combination as recited in claim 1, wherein said tenon is a T-section bar having at least one perforation, with said transverse recess having a tapped hole, with said fastening means comprising a screw passing through said perforation and engaging in said tapped hole.
Claim 4
Dependent Claim
21 words
In the combination as recited in claim 2, with said extending flap proximate end of said cover sheet covering said screw.
Claim 5
Dependent Claim
35 words
In the combination as recited in claim 3, with said extending flap proximate end of said cover sheet having an access hole therethrough at said screw, and a resilient plug for filling said access hole.
Claim 6
Dependent Claim
21 words
In the combination as recited in claim 1, wherein the abutment of said cover sheet are parallel with said T-shaped tenon.
Claim 7
Dependent Claim
26 words
In the combination as recited in claim 5, wherein the abutment of said proximate ends is adjacent said T-shaped tenon, in spaced relationship with said perforation.
Claim 8
Dependent Claim
28 words
In the combination as recited in claim 2, wherein said screw has a head countersunk in said perforation, with said T-shaped tenon lying wholly with said transverse recess.
Claim 9
Dependent Claim
20 words
In the combination as recited in claim 1, with all said flanges and T-shaped tenon transversely filling said transverse recess.
References Cited (Backward Citations)
US866083A
Cited
US1394016A
Cited
US1597250A
Cited
US1575508A
Cited
US2204928A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |