Patent US3754303A successfully refreshed from Google Patents.
US3754303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High compression band clamp
Assignee: Dixon Valve and Coupling Co LLC
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Filing: 1972-03-30
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Granted: 1973-08-28
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Expires: 1992-03-30
Abstract
Abstract A band clamp for high compression fastening of a hose or other flexible tubing, making use of a metal band adapted to encircle the tubing once or twice from an inner band end fixed to the base of a one-piece buckle and to be drawn through and interlocked with the buckle under high tension, is provided with a buckle structure enabling the band to be tensioned and locked in place by any of the conventional lock-up procedures. The buckle is made so rigid that the band can be tightened by a tool gripping its free end and thrusting against the buckle, and then locked by being bent up against and cut off over the front edge of the top wall of the buckle; yet that wall is made with a deformable thinned central section which, when the band has been similarly tightened, can be punched to force it and underlying portions of the band into an interlocking depressed configuration, whereupon the free end of the band may be broken off along said front edge.
Inventors
- 👤 L Pollock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:02
CPC Classifications
B; B65; B65D; B65D63/00; B65D63/02; B65D63/06; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/1459; Y10T24/1461; Y10T24/1463; Y10T24/1467
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
192 words
A clamp for fastening a hose or other flexible tubing under high compression, comprising a one-piece buckle of substantially rectangular hollow shape defined by a top wall, opposite side walls and a bottom wall and a band comprising a length of metal strapping adapted to have one end thereof bent back over itself upon said bottom wall, thence to encircle said tubing and pass through said buckle in one or two convolutions, then to be pulled to high tension by a tool gripping its free end and thrusting against the buckle and then to be interlocked with said top wall, after which said free end may be severed, characterized in that said buckle walls have a thickness and rigidity rendering the buckle non-deformable by the maximum force applicable to tension said band yet said top wall, which is composed of a single, unitary panel, comprises inside the margins of said panel a section thereof of substantially reduced thickness which is defOrmable by a punching operation so that said section and portions of said band underlying it may be punched into an interlocking depressed configuration without distortion of other portions of said buckle.
Claim 2
Dependent Claim
192 words
A clamp for fastening a hose or other flexible tubing under high compression, comprising a one-piece buckle of substantially rectangular hollow shape defined by a top wall, opposite side walls and a bottom wall and a band comprising a length of metal strapping adapted to have one end thereof bent back over itself upon said bottom wall, thence to encircle said tubing and pass through said buckle in one or two convolutions, then to be pulled to high tension by a tool gripping its free end and thrusting against the buckle and then to be interlocked with said top wall, after which said free end may be severed, characterized in that said buckle walls have a thickness and rigidity rendering the buckle non-deformable by the maximum force applicable to tension said band yet said top wall, which is composed of a single, unitary panel, comprises inside the margins of said panel a section thereof of substantially reduced thickness which is defOrmable by a punching operation so that said section and portions of said band underlying it may be punched into an interlocking depressed configuration without distortion of other portions of said buckle.
Claim 3
Dependent Claim
33 words
A clamp according to claim 1, said buckle being composed of a piece of sheet metal bent into said shape and said deformable section being a thinned central portion of said top wall.
Claim 4
Dependent Claim
37 words
A clamp according to claim 1, said buckle being composed of a piece of sheet metal bent into said shape and said deformable section being a thinned portion of said top wall lying between slots formed therein.
Claim 5
Dependent Claim
59 words
A clamp according to claim 1, said buckle being composed of a piece of sheet steel about .045 to .050 inch thick bent into said shape and said deformable section being a central portion of said top wall lying between substantially parallel slots formed therein and squeezed to approximately 55 to 65 percent of the thickness of said piece.
Claim 6
Dependent Claim
33 words
A clamp according to claim 4, the junctions between the ends of said squeezed portion and other portions of said top wall being curved concavely on a radius of at least .005 inch.
Claim 7
Dependent Claim
36 words
A clamp according to claim 4, said steel being a work-hardening steel, said squeezed portion being annealed and the corner portions of said buckle being in a work-hardened state produced by the bends of said piece.
Claim 8
Dependent Claim
84 words
A clamp according to claim 1, said buckle being composed of a piece of sheet metal bent into said shape and having said walls thereof curved longitudinally to conform substantially to the contour of said tubing, said deformable section being a squeezed central portion of said top wall lying between substantially parallel slots punched therethrough, said bottom wall comprising flanges inturned from said side walls and having in their confronting edges punched out areas defining a bottom opening aligned with said deformable wall section.
References Cited (Backward Citations)
US1511607A
Cited
US2214109A
Cited
US2319334A
Cited
US2312575A
Cited
US3015865A
Cited
US3067640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |