Patent US3846901A successfully refreshed from Google Patents.
US3846901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mounting a resilient sleeve on a conveyor roller
Assignee: Martin Engineering Co
•
Filing: 1973-04-19
•
Granted: 1974-11-12
•
Expires: 1993-04-19
Abstract
Abstract A resilient tubular sleeve of elastomeric material having integral outwardly projecting ribs thereon to provide a replaceable surface for a conveyor roller. The ribs have intermittent contact with the conveyor belt in response to axial rotation of the roller to cause deformation of the belt and removal of adherent materials. The tubular sleeve has a smaller internal diameter, in its un-stressed condition, than the diameter of the roller on which it is mounted. The tubular sleeve is mounted on the roller by expanding its internal diameter sufficiently to permit it to slide axially along the roller to the desired position and thereafter permitting it to contract upon the roller surface and resiliently grip it. Convenient mounting methods for the tubular sleeve have been devised utilizing fluid under pressure to effect the expansion of the tubular sleeve.
Inventors
- 👤 J Lovett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:14
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/18; B29C63/20; B29L; B29L2031/00; B29L2031/32; B29L2031/324; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/53; Y10T29/53652; Y10T29/53657
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A method of mounting a resilient tubular sleeve of elastomeric material on a closed-end conveyor roller whose external diameter is greater than the un-stressed internal diameter of said sleeve, comprising the steps of: a. Slidably nesting said closed-end conveyor roller into a close-fitting hollow cylinder to provide a restricted fluid flow annular passageway around said roller, b. Expanding one end of said sleeve sufficiently to mount it in coupled relationship to an open end portion of said cylinder, c. Injecting fluid under pressure into the opposite end of said cylinder to displace said roller into sealing engagement with the unexpanded portion of said sleeve to create a fluid barrier, d. Maintaining said fluid pressure to cause fluid flow through said annular passageway to progressively open said barrier and expand the remainder of said sleeve while displacing said roller by said fluid pressure into said expanded remainder until said roller has attained and desired positional longitudinal relationship to said sleeve, and e. Relieving said pressure to permit said sleeve to contract into gripping relationship to said roller.
Claim 2
Independent Claim
176 words
A method of mounting a resilient tubular sleeve of elastomeric material on a closed-end conveyor roller whose external diameter is greater than the un-stressed internal diameter of said sleeve, comprising the steps of: a. Slidably nesting said closed-end conveyor roller into a close-fitting hollow cylinder to provide a restricted fluid flow annular passageway around said roller, b. Expanding one end of said sleeve sufficiently to mount it in coupled relationship to an open end portion of said cylinder, c. Injecting fluid under pressure into the opposite end of said cylinder to displace said roller into sealing engagement with the unexpanded portion of said sleeve to create a fluid barrier, d. Maintaining said fluid pressure to cause fluid flow through said annular passageway to progressively open said barrier and expand the remainder of said sleeve while displacing said roller by said fluid pressure into said expanded remainder until said roller has attained and desired positional longitudinal relationship to said sleeve, and e. Relieving said pressure to permit said sleeve to contract into gripping relationship to said roller.
References Cited (Backward Citations)
US284050A
Cited
US710817A
Cited
US2498357A
Cited
US2645004A
Cited
US2628709A
Cited
US2721601A
Cited
US3139677A
Cited
US3212177A
Cited
US3138859A
Cited
US3269730A
Cited
US3611536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |