US4596203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Checking device for use in hotel refrigerators and other lockable self-service apparatuses
Assignee: Electrolux Siegen GmbH
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Filing: 1983-12-28
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Granted: 1986-06-24
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Expires: 2003-12-28
Abstract
Abstract The subject matter of the invention is a checking device for use in hotel refrigerators and other lockable self-service apparatuses. In order to be able to determine simply and quickly whether the apparatuses were opened and, if so, whether any of their contents were removed, an indicator means automatically actuated upon opening of the apparatus is installed in the interior of the apparatus so as to be safeguarded against unauthorized manipulation, the indicator means having an externally visible indicating element. The indicator means may be coupled with the door lock or with the handle of the apparatus and may include a slide which is actuated when the apparatus is opened and mechanically activates the externally visible indicating element.
Inventors
- 👤 Manfred Lorek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:01
CPC Classifications
E; E05; E05B; E05B39/00; E05B39/04; F; F25; F25D; F25D2400/00; F25D2400/36; F25D2700/00; F25D2700/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
96 words
A checking device for use on a movable member such as a door on hotel refrigerators and other lockable self-service apparatuses characterized in that said checking device is provided with an externally visible indicating element which is activated when said apparatus is opened with an apparatus key and is gravitationally biased to remain in the activated state and which indicating element remains in the activated state regardless of subsequent openings of the apparatus until the indicating element is reset to an inactivated initial state by actuation of a setting member by means of a device key.
Claim 2
Dependent Claim
96 words
A checking device for use on a movable member such as a door on hotel refrigerators and other lockable self-service apparatuses characterized in that said checking device is provided with an externally visible indicating element which is activated when said apparatus is opened with an apparatus key and is gravitationally biased to remain in the activated state and which indicating element remains in the activated state regardless of subsequent openings of the apparatus until the indicating element is reset to an inactivated initial state by actuation of a setting member by means of a device key.
Claim 3
Dependent Claim
72 words
Checking device according to claim 1, characterized in that the indicating element is contained in the interior of a housing so as to be safeguarded against unauthorized manipulation, said housing being coupled with a door lock of the apparatus, that a key-operated slide activates the indicating element only upon initial opening of the apparatus, and the setting member is coupled with the indicating element and is actuatable independently of the door lock.
Claim 4
Dependent Claim
33 words
Checking device according to claim 2, characterized in that the slide is movable by the apparatus key against the force of a spring, said slide slidably supporting a retainer for the indicating element.
Claim 5
Dependent Claim
33 words
Checking device according to claim 3, characterized in that the retainer is a stop slidably mounted in the slide and engaging a nose on the indicating element designed as a colored retainer catch.
Claim 6
Dependent Claim
26 words
Checking device according to claim 1, characterized in that the indicator element can be moved to a non-indicating position only by means of said device key.
Claim 7
Dependent Claim
36 words
Checking device according to claim 1, characterized in that the indicator element is accommodated in a plastic housing mounted to the inside of the door of the apparatus directly beside a door lock of the apparatus.
References Cited (Backward Citations)
US1030196A
Cited
US1131278A
Cited
US1429306A
Cited
US2266086A
Cited
US2637801A
Cited
US2922150A
Cited
US3011163A
Cited
US3427835A
Cited
US3644920A
Cited
US3611333A
Cited
US3653022A
Cited
US3893095A
Cited
US4040382A
Cited
US4102164A
Cited
US4196422A
Cited
US4283718A
Cited
US4437607A
Cited
US4465997A
Cited
US4427975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |