Patent US4903320A successfully refreshed from Google Patents.
Patent US3596944A successfully refreshed from Google Patents.
US3596944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the detachable fixing or location of a part on a pin or shaft
Assignee: Voestalpine AG
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Filing: 1970-03-26
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Granted: 1971-08-03
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Expires: 1990-03-26
Abstract
Abstract This invention relates to a device for detachably fixing or locating a part on a pin or shaft by means of a locking ring engaging with the part to be fixed or located, the locking ring resting against a support displaceable in relation to the pin or shaft and acted upon by a spring, while the support can be moved by the action of a pressure medium against the force of the spring so as to enable the locking ring to be released and in which a special actuator is provided for moving the support against the spring force.
Inventors
- 👤 Karl-Heinz Ecker
- 👤 Matthias Dortans
- 👤 Helmut Henschenmacher
- 👤 Karlheinz Wahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:44
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/02; B21B27/03; B21B27/035; F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0829; F16D1/0841; B21B2203/00; B21B2203/30; B21B31/00; B21B31/08; F16B; F16B2200/00; F16B2200/69; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/5383; Y10T403/00; Y10T403/16; Y10T403/1633; Y10T403/70; Y10T403/7005
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
133 words
A device for detachably fixing or locating a part on a shaft comprising locking ring engaging with the part to be fixed, the locking ring resting on a support located on and displaceable or means projecting from the shaft and said support being biased by a spring toward the part being fixed said support being movable away from the part by the action of a pressure fluid against the force of the spring so as to enable the locking ring to be released, an actuator for moving the support against the spring force, the actuator having two parts capable of relative motion by the action of a pressure fluid, one of these parts being connected to the support while the other part rests against the end of the means projecting from the shaft.
Claim 2
Independent Claim
133 words
A device for detachably fixing or locating a part on a shaft comprising locking ring engaging with the part to be fixed, the locking ring resting on a support located on and displaceable or means projecting from the shaft and said support being biased by a spring toward the part being fixed said support being movable away from the part by the action of a pressure fluid against the force of the spring so as to enable the locking ring to be released, an actuator for moving the support against the spring force, the actuator having two parts capable of relative motion by the action of a pressure fluid, one of these parts being connected to the support while the other part rests against the end of the means projecting from the shaft.
Claim 3
Dependent Claim
23 words
A device according to claim 1, in which a casing of the actuator unit forms a cylinder for a piston displaceable in it.
Claim 4
Dependent Claim
30 words
A device as claimed in claim 1, in which the actuator unit has at least one lug or the like, capable of engaging into an annular groove of the support.
Claim 5
Dependent Claim
30 words
A device as claimed in claim 2, in which the actuator unit has at least one lug or the like, capable of engaging into an annular groove of the support.
Claim 6
Dependent Claim
20 words
A device as claimed in claim 3, in which the lug is in the shape of a fork or U.
Claim 7
Dependent Claim
20 words
A device as claimed in claim 4, in which the lug is in the shape of a fork or U.
Claim 8
Dependent Claim
22 words
A device as claimed in claim 3, in which the lug is in one piece with the casing of the actuator unit.
Claim 9
Dependent Claim
27 words
A device as claimed in claim 1, in which the actuator unit can be connected to the support by means of a shrouded nut or the like.
Claim 10
Dependent Claim
24 words
A device as claimed in claim 2, wherein the actuator is connected to the support by means of a shrouded nut or the like.
Claim 11
Dependent Claim
24 words
A device as claimed in claim 3, wherein the actuator is connected to the support by means of a shrouded nut or the like.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |