US3924843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool
Assignee: REPAPRESS AG
•
Filing: 1974-03-11
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Granted: 1975-12-09
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Expires: 1994-03-11
Abstract
Abstract A tool includes a force-producing device having at least one inflatable member of hose-like shape sinuously disposed in loops within subdivisions of a frame member having a plurality of mutually spaced transverse walls subdividing the same into subdivisions. An opposing frame member subdivided by a plurality of mutually spaced transverse walls, the respective transverse walls of said frame members alternately disposed in the free space of said subdivisions, the hose-like member being inflatable to displace the frame members relative to one another. Another inflatable member to displace the frame members in an opposite direction. Inserts for the hose-like member to prevent its blockage. Pressure-tightly closed ends provided on the inflatable member. Retainer means for securing the inflatable member in the tool. The tool may be used as a vise, pliers, tongs claws and the like.
Inventors
- 👤 Georg Hirmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:05
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/10; B; B23; B23D; B23D15/00; B23D15/12; B23D15/14; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/28; B23Q1/287; B25; B25B; B25B5/00; B25B5/06; B25B5/061; B25B5/065; B25B7/00; B25B7/12; B25B7/126; F16; F16J; F16J3/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
122 words
Tool comprising a force-producing device having an inflatable member of hose-like shape, a frame member having plurality of mutually spaced transverse walls subdividing the same, said hoselike inflatable member being sinuously disposed in loops within the subdivisions of said frame, and an opposing frame member having an inner space subdivided by a plurality of mutually spaced transverse walls, said transverse walls of said opposing frame member being fitted in said subdivisions defined by said transverse walls of said first-mentioned frame member, said frame members being mutually superposed with the respective transverse walls thereof alternatingly disposed in the free space of said subdivisions, said inflatable hose-like member being inflatable so as to displace said frame members relative to one another in given direction.
Claim 2
Dependent Claim
122 words
Tool comprising a force-producing device having an inflatable member of hose-like shape, a frame member having plurality of mutually spaced transverse walls subdividing the same, said hoselike inflatable member being sinuously disposed in loops within the subdivisions of said frame, and an opposing frame member having an inner space subdivided by a plurality of mutually spaced transverse walls, said transverse walls of said opposing frame member being fitted in said subdivisions defined by said transverse walls of said first-mentioned frame member, said frame members being mutually superposed with the respective transverse walls thereof alternatingly disposed in the free space of said subdivisions, said inflatable hose-like member being inflatable so as to displace said frame members relative to one another in given direction.
Claim 3
Dependent Claim
43 words
Tool according to claim 1 including another inflatable member disposed in one of the subdivisions and inflatable so as to displace said frame members relative to one another in direction opposite to saId given direction and back to the initial relative position thereof.
Claim 4
Dependent Claim
18 words
Tool according to claim 1 wherein said frame members are provided with respective clamping jaws forming a vise.
Claim 5
Dependent Claim
45 words
Tool according to claim 1 wherein said inflatable hose-like member is provided in said loops thereof with inserts having a profiled cross section so as to prevent pressing together of the wall of said hose-like member and blockage of the free passage cross section thereof.
Claim 6
Dependent Claim
16 words
Tool according to claim 1 wherein said inflatable member comprises a hose having pressure-tightly closed ends.
Claim 7
Dependent Claim
53 words
Tool according to claim 5 wherein said hose ends are closed by a cap respectively extending over said hose ends and by a respective corresponding removable, unattached elastic body received in the interior of said hose, said cap having a crimp therein formlocking both said cap and said elastic body with said hose.
Claim 8
Dependent Claim
16 words
Tool according to claim 1 including means for securely retaining said inflatable member in the tool.
Claim 9
Dependent Claim
49 words
Tool according to claim 7 wherein said retaining means is a holder member, and including another member cooperating with said holder member for securing said inflatable member in the tool, one of said members comprising a pin and the other formed with an eye wherein said pin is receivable.
Claim 10
Dependent Claim
49 words
Tool according to claim 7 wherein said retaining means is a holder member, and including another member cooperating with said holder member for securing said inflatable member in the tool, one of said members comprising a ledge and the other formed with a groove wherein said ledge is receivable.
Claim 11
Dependent Claim
15 words
Tool according to claim 1 wherein said inflatable member is formed of elastic profile material.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |