US3580170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support assembly for a travel cylinder having rolling contact with the bed of a printing machine
Assignee: Texaco Inc
•
Filing: 1968-08-30
•
Granted: 1971-05-25
•
Expires: 1988-08-30
Abstract
Abstract A roller cylinder support assembly consisting of an outboard low friction bearing housing which is nested in an inboard recessed thrust washer and a shaft of appropriate dimensions for supporting the same extending axially through the roller cylinder, the roller cylinder bracket yoke of the actuating handle contacting the roller cylinder shaft between the roller cylinder and the thrust washer.
Inventors
- 👤 George R Furman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:20
CPC Classifications
B; B41; B41L; B41L45/00; B41L45/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
In a printing machine having a bed and a travel cylinder for rolling contact thereagainst, the improvement comprising a support assembly for said cylinder including a shaft extending axially through said cylinder, a thrust washer for each end thereof, and a low friction bearing positioned outboard of said washer on said each end thereof, said shaft having journal ends, said low friction bearing comprising a roller Bearing housing having an inboard flange, said thrust washer having a recess for receiving said inboard flange of said bearing housing.
Claim 2
Dependent Claim
87 words
In a printing machine having a bed and a travel cylinder for rolling contact thereagainst, the improvement comprising a support assembly for said cylinder including a shaft extending axially through said cylinder, a thrust washer for each end thereof, and a low friction bearing positioned outboard of said washer on said each end thereof, said shaft having journal ends, said low friction bearing comprising a roller Bearing housing having an inboard flange, said thrust washer having a recess for receiving said inboard flange of said bearing housing.
Claim 3
Dependent Claim
17 words
In the improvement as defined in claim 1 said thrust washer comprising a stiff, low friction material.
Claim 4
Dependent Claim
22 words
In the improvement as defined in claim 2, said journal ends and the portions of the shaft adjacent thereto being heat treated.
Claim 5
Dependent Claim
27 words
In the improvement as defined in claim 2, said low friction material comprising a plastic selected from the group consisting of an acetyl resin, nylon and polytetrafluoroethylene.
Claim 6
Dependent Claim
31 words
In the improvement as defined in claim 4, the depth of the recess in said thrust washer being at least equal to or greater than the width of said inboard flange.
Claim 7
Dependent Claim
23 words
In the improvement as defined in claim 2, said low friction material being selected from the group consisting of brass and phosphor bronze.
References Cited (Backward Citations)
US1866910A
Cited
US2063787A
Cited
US2443856A
Cited
US2846251A
Cited
US2935939A
Cited
US2976091A
Cited
US3179046A
Cited
US3272999A
Cited
US3260199A
Cited
US3279369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |