Patent US4570512A successfully refreshed from Google Patents.
US4570512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cork screw having a bell-shaped housing
Assignee: AUGUST REUTERSHAN GmbH and Co KG
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Filing: 1984-12-06
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Granted: 1986-02-18
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Expires: 2004-12-06
Abstract
Abstract With a cork screw having a bell-shaped housing with which a cork can be lifted out of the neck of a bottle without reversing the turning direction of the cork-screw blade and which is provided with a sleeve-like body with which the cork screw is firmly put on the neck of the bottle to be uncorked in order to lift out the cork, the lifting of the cork out of the bottle to be uncorked is often made difficult because the cork-screw blade is not centered. In order to avoid this disadvantage, there is guided in the sleeve-like body a spring-loaded piston which is located near the lower end of the sleeve-like body when the cork-screw blade is driven into the cork and through which the cork-screw blade passes centrally with a slight clearance.
Inventors
- 👤 Gunther Pracht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:39
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/02; B67B7/04; B67B7/0417; B67B7/0441
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
180 words
A cork screw having a bell-shaped housing and a cork-screw blade which is secured at one of its ends to the closed end of the bell-shaped housing, the cork being able to be lifted out of a bottle neck without reversing the turning direction of the cork-screw blade, comprising (a) a sleeve-like body (3) on which the bell-shaped housing (1) is guided and which has at its lower end a collar (5) with which the cork screw grips around the upper end of the neck (17) of a bottle to be uncorked when the cork screw has been placed on the neck of the bottle, and (b) a spring-loaded piston (10) which is guided in the sleeve-like body (3) of the cork screw and which at the beginning of driving the cork-screw blade (8) into the cork is adjacent to the lower end of the sleeve-like body, the cork-screw blade passing through a central passage-hole in said piston with clearance and in the starting position reaching with its free end nearly up to the lower end of the sleeve-like body.
Claim 2
Dependent Claim
180 words
A cork screw having a bell-shaped housing and a cork-screw blade which is secured at one of its ends to the closed end of the bell-shaped housing, the cork being able to be lifted out of a bottle neck without reversing the turning direction of the cork-screw blade, comprising (a) a sleeve-like body (3) on which the bell-shaped housing (1) is guided and which has at its lower end a collar (5) with which the cork screw grips around the upper end of the neck (17) of a bottle to be uncorked when the cork screw has been placed on the neck of the bottle, and (b) a spring-loaded piston (10) which is guided in the sleeve-like body (3) of the cork screw and which at the beginning of driving the cork-screw blade (8) into the cork is adjacent to the lower end of the sleeve-like body, the cork-screw blade passing through a central passage-hole in said piston with clearance and in the starting position reaching with its free end nearly up to the lower end of the sleeve-like body.
Claim 3
Dependent Claim
52 words
A cork screw having a bell-shaped housing as claimed in claim 1, wherein the piston (10) is guided in the sleeve-like body (3) in such a manner that it is secured against rotation and has at its end face facing the lower end of the sleeve-like body fixedly arranged tapering pins (14).
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) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |