US3986743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking toggle joint for gripping tongs
Assignee: GUSTAVBERGS FABRIKER AB
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Filing: 1975-03-18
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Granted: 1976-10-19
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Expires: 1995-03-18
Abstract
Abstract The present invention relates to a toggle joint, specially to an angular positioning device for a gripping means for gripping tongs where the movements of the tong jaws of the gripping means are regulated by a control cable whose one end is fixed in the gripping means and whose other end is connected to an operating trigger in the handle of the gripping tongs. Said device is formed as a toggle joint having two cooperating joint surfaces designed with locking means which engage one another and forming clutch couplings.
Inventors
- 👤 Per-Olof Bjurling
- 👤 Sven-Eric Juhlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/64; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32368
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
176 words
An angular positioning device for a gripping means for gripping tongs, where the movements of the tong jaws of the gripping means are regulated by a control cable whose one end is fixed in the gripping means and whose other end is connected to an operating trigger in the handle of the gripping tongs, said device being formed as a toggle joint (4) comprising inward and outward joint members (6, 7) having cooperating joint surfaces, the joint surfaces of the outward joint member (7) comprising the insides (17) of a pair of lugs (14) yieldingly connected to the outward member, said cooperating joint surfaces being designed with locking means (19, 20) which engage one another and forming clutch couplings, said inward and outward joint members (6, 7) being held together by a joint pin (8), said pin being axially divided by a slot (12') for receiving the control cable (5), said slot being bevelled to a widening (13) toward the one side of said slot to facilitate the movement of the cable through the toggle joint.
Claim 2
Dependent Claim
176 words
An angular positioning device for a gripping means for gripping tongs, where the movements of the tong jaws of the gripping means are regulated by a control cable whose one end is fixed in the gripping means and whose other end is connected to an operating trigger in the handle of the gripping tongs, said device being formed as a toggle joint (4) comprising inward and outward joint members (6, 7) having cooperating joint surfaces, the joint surfaces of the outward joint member (7) comprising the insides (17) of a pair of lugs (14) yieldingly connected to the outward member, said cooperating joint surfaces being designed with locking means (19, 20) which engage one another and forming clutch couplings, said inward and outward joint members (6, 7) being held together by a joint pin (8), said pin being axially divided by a slot (12') for receiving the control cable (5), said slot being bevelled to a widening (13) toward the one side of said slot to facilitate the movement of the cable through the toggle joint.
Claim 3
Dependent Claim
34 words
The device according to claim 1, wherein the joint members are pressed together by an eccentric cam (21) formed in the one end of a lever (9) pivotally mounted at the joint pin (8).
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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |