Patent US4512495A successfully refreshed from Google Patents.
US4512495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saucepan lid with detachable handle
Assignee: WURTTEMBERGISCHE METALLWARENFABRIK AG EBERHARDSTRASSE 1 D-7340 GEISLINGEN/STEIGE WEST-GERMANY A WEST GERMAN CORP
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Filing: 1984-04-13
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Granted: 1985-04-23
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Expires: 2004-04-13
Abstract
Abstract The invention relates to a saucepan lid having a lid handle detachably secured thereto, particularly for a steam pressure cooker, including monitoring elements disposed within said lid handle. Means are provided for permitting said handle to be detached from said lid without technical difficulties and to be safely re-attached thereto. To this effect the lid and lid handle are provided with projections and engagement recesses at locations permitting them to be brought into mutual engagement for attaching the handle to the lid and to be readily released from such engagement for detaching the handle, at least one such projection forming a movable component of a locking closure means. In a preferred embodiment the locking closure means is designed as a snap-engagement locking means (FIG. 1).
Inventors
- 👤 Ewald Bauer
- 👤 Jurgen Krejza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:19
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/08; A47J27/09; A47J27/092; A47J45/00; A47J45/06; A47J45/07; A47J45/071
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
84 words
A saucepan lid having a handle detachably secured thereto, particularly for a pressure cooker, including monitoring elements sealingly mounted within the lid handle, characterized in that said lid handle (4) and said lid (3) are provided with projections (8; 35) and engagement recesses (7; 7') adapted to be brought into mutual engagement for securing said lid handle and to be released from one another for detaching said lid handle, at least one projection (13) forming a movable component of a locking closure means (9).
Claim 2
Dependent Claim
84 words
A saucepan lid having a handle detachably secured thereto, particularly for a pressure cooker, including monitoring elements sealingly mounted within the lid handle, characterized in that said lid handle (4) and said lid (3) are provided with projections (8; 35) and engagement recesses (7; 7') adapted to be brought into mutual engagement for securing said lid handle and to be released from one another for detaching said lid handle, at least one projection (13) forming a movable component of a locking closure means (9).
Claim 3
Dependent Claim
23 words
A lid according to claim 1, characterized in that said locking closure means (9) is located adjacent a rim (3a) of said lid.
Claim 4
Dependent Claim
37 words
A lid according to claim 2, characterized in that an engagement opening (7) or a projection (8), respectively, is located on the top surface of said lid at a position spaced from said locking closure means (9).
Claim 5
Dependent Claim
25 words
A lid according to any of claims 1 to 3, characterized in that said locking closure means is formed as a snap engagement closure (9).
Claim 6
Dependent Claim
37 words
A lid according to claim 4, characterized in that said snap engagement closure (9) comprises a spring-biased latch (13) supported in said lid handle (4) and a recess (10) formed in the rim (3a) of said lid.
Claim 7
Dependent Claim
41 words
A lid according to claim 5, characterized in that said latch (13) is formed on a shell (12) containing a compression spring (15) and mounted in a cavity (11) of said lid handle (4) supporting the free end of said spring.
Claim 8
Dependent Claim
53 words
A lid according to claim 4, characterized in that a clip (34) is located on the top surface of said lid, an end portion of said handle extending over said lid (3') being provided with a lug (35) adapted to be inserted in an opening (7') underneath said clip by a pivoting movement.
Claim 9
Dependent Claim
23 words
A lid according to claim 7, characterized in that the width of said lug (35) is smaller than that of said handle (4').
Claim 10
Dependent Claim
17 words
A lid according to claim 7, characterized in that said lug (35) is of hook-shaped bent configuration.
Claim 11
Dependent Claim
40 words
A lid according to claim 4, characterized in that said lid (3) is provided with a hook-shaped lug (8) said lid handle (4) being provided with a recess (7) adapted to be engaged with said lug by a pivoting movement.
Claim 12
Dependent Claim
87 words
A lid according to any of claims 1 to 3 for a steam pressure cooker having a handle extending underneath said lid handle in the pressure-cooking position, characterized in that the movable locking closure component (13) of said lid handle (4) is formed with a projection (14) facing towards the handle (2) of the pressure cooker and adapted to be received in a recess (16) of said pressure cooker handle (2) so as to prevent said locking closure means (9) from being opened in the pressure-cooking position.
Claim 13
Dependent Claim
28 words
A lid, particularly in accordance with claim 1, characterized in that said lid handle (4; 4') comprises a metal plate (4a; 4a') mounting said monitoring elements (17, 18).
Claim 14
Dependent Claim
36 words
A lid according to claim 12, characterized in that said metal plate (4a; 4a') is covered by a plastic housing portion (4b; 4b') at least on its side facing towards the top surface of the lid.
Claim 15
Dependent Claim
71 words
A lid according to any of claims 1 to 3, characterized in that said locking closure means (9) is associated with actuating means (30) for opening and closing a safety valve (18) in such a manner that said safety valve is permitted to close only in the locking position of said locking closure means, and said locking closure means is releasable only when said safety valve is in its open position.
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) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |