US3852558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically coupled control for cooking platform
Assignee: Westinghouse Electric Corp
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Filing: 1974-03-27
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Granted: 1974-12-03
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Expires: 1994-03-27
Abstract
Abstract A magnetically coupled type of control for a cooking platform has a movable support member for the magnetic follower in which the support member has a rack gear on one side for engagement with a rotatable pinion gear on a shaft of the thermal cycling switch, and with the other side of the support member having a channel receiving the straight portion of a guide bar and a pair of opposite open-ended slots to accommodate the ends of the guide bar in the rectilinear movement of the support member, with the secured ends of the guide bar serving as opposite end limits to movement of the support member.
Inventors
- 👤 E Mccleerey
- 👤 W English
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:11
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/08; F24C7/082; Y; Y10; Y10S; Y10S336/00; Y10S336/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
In a magnetically coupled type of control arrangement for a cooking platform having a heat producing element: a user-operated control member on the accessible side of a control panel; a follower member on the other side of said panel adapted to be magnetically coupled to said control member; a support plate spaced from said other side of said panel; a controller for controlling energization of said heat producing element mounted to said support plate and including a rotatable shaft projecting therefrom and having a pinion gear fixed thereon; a guide bar mounted at its ends on said plate and having a straight length extending on both directions beyond said gear; and a support member for said follower member having a gear rack on one side for engagement with said pinion gear, and provided with a pair of opposite, open-ended slots on the opposite side to accommodate the ends of said guide bar in the rectilinear movement of said support member, said guide bar ends serving as opposite end limits to movement of said support member.
Claim 2
Dependent Claim
175 words
In a magnetically coupled type of control arrangement for a cooking platform having a heat producing element: a user-operated control member on the accessible side of a control panel; a follower member on the other side of said panel adapted to be magnetically coupled to said control member; a support plate spaced from said other side of said panel; a controller for controlling energization of said heat producing element mounted to said support plate and including a rotatable shaft projecting therefrom and having a pinion gear fixed thereon; a guide bar mounted at its ends on said plate and having a straight length extending on both directions beyond said gear; and a support member for said follower member having a gear rack on one side for engagement with said pinion gear, and provided with a pair of opposite, open-ended slots on the opposite side to accommodate the ends of said guide bar in the rectilinear movement of said support member, said guide bar ends serving as opposite end limits to movement of said support member.
Claim 3
Dependent Claim
46 words
In an arrangement according to claim 1 including: means for mounting said follower member on said support member to constrain movement of one relative to the other in a plane parallel to said support plate while permitting relative movement in a direction perpendicular to said plane.
Claim 4
Dependent Claim
19 words
In an arrangement according to claim 1 including: means biasing said pinion gear and controller to a deenergized position.
Claim 5
Dependent Claim
42 words
In an arrangement according to claim 1 wherein: said support plate includes slot means for securing said support plate in one of a number of longitudinally shifted positions to facilitate proper registry of said control member with indicia on said control panel.
Claim 6
Dependent Claim
67 words
In an arrangement according to claim 2 wherein: said means for mounting said follower member on said support member includes a pair of projecting posts on said follower member and two pairs of post receiving bores on said support member, one pair of said post receiving bores being laterally offset from the other pair to permit alternative positioning of said follower member relative to said support member.
References Cited (Backward Citations)
US2561116A
Cited
US2537733A
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US2745027A
Cited
US3634802A
Cited
US3711672A
Cited
US3796850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |