US3797077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal clamp band
Assignee: NTN Corp
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Filing: 1972-10-24
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Granted: 1974-03-19
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Expires: 1992-10-24
Abstract
Abstract Clamp band for hose, dust cover of universal joint and the like provided with a lever secured thereto to exert a powerful tightening force through a lever-action so that said band is securely locked against expansion. Collar means may maintain the locked condition.
Inventors
- 👤 K Omori
- 👤 H Nagayoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:14
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/02; F16L33/12; F16L33/021; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1424
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
165 words
A metal clamp band comprising a single ply annular metallic band having a circular configuration corresponding to the circular configuration of an article to be clamped, the free ends of said metallic band extending outwardly therefrom and in flush engagement with one another forming an upstanding engaged end portion, a lever element of a thickness greater than that of said metallic band fixedly secured at one end to said engaged end portion and extending outwardly therefrom in the same direction as said engaged end portion, said lever element when moved down to the surface of said metallic band causing said engaged end portion to bend downwardly thereby shortening the diameter of said band and imparting a strong clamping action thereto, and a collar fixedly secured to said band close to buT spaced from the engaged end portion of said band to receive and retain in tight engagement at least the free end of said lever element when same is bent down against the band surface.
Claim 2
Dependent Claim
165 words
A metal clamp band comprising a single ply annular metallic band having a circular configuration corresponding to the circular configuration of an article to be clamped, the free ends of said metallic band extending outwardly therefrom and in flush engagement with one another forming an upstanding engaged end portion, a lever element of a thickness greater than that of said metallic band fixedly secured at one end to said engaged end portion and extending outwardly therefrom in the same direction as said engaged end portion, said lever element when moved down to the surface of said metallic band causing said engaged end portion to bend downwardly thereby shortening the diameter of said band and imparting a strong clamping action thereto, and a collar fixedly secured to said band close to buT spaced from the engaged end portion of said band to receive and retain in tight engagement at least the free end of said lever element when same is bent down against the band surface.
Claim 3
Dependent Claim
56 words
A metal clamp band in accordance with claim 1, wherein the lever element is of a length and the collar is so spaced on the band that when the lever element is bent down against the surface of the band, the collar will retain both the lever element and the engaged end portion in tight engagement.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |