US3141545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor structure
Assignee: Cherry Burrell Corp
•
Filing: 1960-03-21
•
Granted: 1964-07-21
•
Expires: 1980-03-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward T Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:07
CPC Classifications
B; B65; B65G; B65G33/00; B65G33/02; B65G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A CONVEYOR STRUCTURE OF THE CLASS DESCRIBED, A RAIL HOUSING HAVING A C-SHAPED TUBULAR MEMBER OPEN AT THE TOP ALONG THE ENTIRE LENGTH THEREOF TO PROVIDE AN ELONGATED RECESS HAVING A SMOOTH CURVED SURFACE, TWO LEDGES FORMED IN SAID RECESS, ONE ON EACH SIDE OF THE OPENING NEAR THE TOP OF SAID MEMBER ALONG THE ENTIRE LENGTH THEREOF, A REPLACEABLE LINER FITTED IN SAID RECESS, SAID LINER BEING CONSTRUCTED OF A RELATIVELY THIN, WEAR-RESISTANT, LOWFRICTION MATERIAL OF SUBSTANTIALLY UNIFORM THICKNESS TO PROVIDE A SMOOTH CURVED WEARING SURFACE, AND A DRIVE SHAFT SEATED IN SAID LINER AND ROTATABLE RELATIVE TO SAID HOUSING, SAID LINER BEING MAINTAINED IN A FIXED POSITION RELATIVE TO SAID HOUSING BY ENGAGEMENT WITH SAID LEDGES.
Claim 2
Dependent Claim
119 words
IN A CONVEYOR STRUCTURE OF THE CLASS DESCRIBED, A RAIL HOUSING HAVING A C-SHAPED TUBULAR MEMBER OPEN AT THE TOP ALONG THE ENTIRE LENGTH THEREOF TO PROVIDE AN ELONGATED RECESS HAVING A SMOOTH CURVED SURFACE, TWO LEDGES FORMED IN SAID RECESS, ONE ON EACH SIDE OF THE OPENING NEAR THE TOP OF SAID MEMBER ALONG THE ENTIRE LENGTH THEREOF, A REPLACEABLE LINER FITTED IN SAID RECESS, SAID LINER BEING CONSTRUCTED OF A RELATIVELY THIN, WEAR-RESISTANT, LOWFRICTION MATERIAL OF SUBSTANTIALLY UNIFORM THICKNESS TO PROVIDE A SMOOTH CURVED WEARING SURFACE, AND A DRIVE SHAFT SEATED IN SAID LINER AND ROTATABLE RELATIVE TO SAID HOUSING, SAID LINER BEING MAINTAINED IN A FIXED POSITION RELATIVE TO SAID HOUSING BY ENGAGEMENT WITH SAID LEDGES.
References Cited (Backward Citations)
US2924008A
Cited
US1730799A
Cited
US1792733A
Cited
US2496764A
Cited
US2620917A
Cited
US2747725A
Cited
US2908379A
Cited
US3032377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |