US4017112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for releasing a load from its support
Assignee: Callisto SA
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Filing: 1976-04-15
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Granted: 1977-04-12
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Expires: 1996-04-15
Abstract
Abstract Device for releasing a load from its support comprising two clamping jaws for the load, mounted inside a sleeve formed with openings and movable in relation to said sleeve under the combined action of the load and of a spring whose action is applied in the opposite direction to the load, between two positions, a lower position where the jaws are compulsorily closed and a higher position where the jaws can open due to the shape of the jaws and the position of the openings with means inhibiting the relative movement of said jaws in relation to said sleeve and driving means arranged so that it stops the action of said inhibiting means.
Inventors
- 👤 Rene Delest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:46
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/34; B66C1/38; B64; B64D; B64D1/00; B64D1/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
Device for releasing a load from its support comprising two clamping jaws for the load, mounted inside a sleeve formed with openings and movable in relation to said sleeve under the combined action of the load and of a spring whose action is applied in the opposite direction to the load, between two positions, a lower position where the jaws are compulsorily closed and a higher position where the jaws can open due to the shape of the jaws and the position of the openings with means inhibiting the relative movement of said jaws in relation to said sleeve and driving means arranged so that it stops the action of said inhibiting means.
Claim 2
Dependent Claim
113 words
Device for releasing a load from its support comprising two clamping jaws for the load, mounted inside a sleeve formed with openings and movable in relation to said sleeve under the combined action of the load and of a spring whose action is applied in the opposite direction to the load, between two positions, a lower position where the jaws are compulsorily closed and a higher position where the jaws can open due to the shape of the jaws and the position of the openings with means inhibiting the relative movement of said jaws in relation to said sleeve and driving means arranged so that it stops the action of said inhibiting means.
Claim 3
Dependent Claim
36 words
Device according to claim 1, wherein the jaws are supported by a common axle attached to a ring co-axial to and outside the sleeve, and the spring is arranged in order to act on said ring.
Claim 4
Dependent Claim
16 words
Device according to claim 1, wherein said inhibiting means is arranged to act on the sleeve.
Claim 5
Dependent Claim
16 words
Device according to claim 3, wherein the sleeve is cylindrical and mounted rotatory about its axis.
Claim 6
Dependent Claim
28 words
Device according to claim 4, wherein the relative movement of the sleeve and the jaws is caused by a unique spring working as flexure and as torsion spring.
Claim 7
Dependent Claim
29 words
Device according to claim 4, wherein the sleeve comprises an abutment and the inhibiting means is constituted by a pivoted lever, one end of which co-operates with such abutment.
Claim 8
Dependent Claim
16 words
Device according to claim 1, wherein the inhibiting means is arranged to act on the jaws.
Claim 9
Dependent Claim
22 words
Device according to claim 7, wherein the inhibiting means is a screw engaging one end with the upper portion of the jaws.
Claim 10
Dependent Claim
30 words
Device according to claim 1, wherein the opening of the jaws is caused by action of fixed studs on catches attached to said jaws when such jaws are being unlocked.
Claim 11
Dependent Claim
26 words
Device according to claim 1, wherein said driving means is arranged so as to cause a stop of the action of the inhibiting means with time-delay.
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) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |