Patent US3688060A successfully refreshed from Google Patents.
US3688060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switch means for effecting sequential operation
Assignee: Texas Instruments Inc
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Filing: 1970-08-24
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Granted: 1972-08-29
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Expires: 1990-08-24
Abstract
Abstract A creep action switch structure auxiliary to and operating in planned sequence with a snap acting switch is shown. In the embodiment shown, the main switch is part of a time delay relay in which the auxiliary switch provides a shorter heat or cool time relative to the main switch and also provides a means of reducing the total time delay on heating or cooling for multiple relay use.
Inventors
- 👤 Jerry A Risk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:48
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/0066; H01H37/00; H01H37/02; H01H37/12; H01H37/28; H01H61/00; H01H61/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
280 words
Electrical sequencing apparatus comprising a housing, a first switch mounted in the housing including: a first stationary contact; a first movable contact; means to cause the first movable contact to move into and out of engagement with the first stationary contact, the means including a member movable in a first direction with creep action for a first interval, with snap action for a second interval and movable in a second return direction with creep action for a third interval, and with snap action for a fourth interval; a second switch mounted in the housing including: a second stationary contact mounted on a relatively stiff elongated member, the member cantilever mounted in the housing, and means are provided in the housing to bias the free end of the elongated member into desired adjusted position; a second movable contact movable into and out of engagement with the second stationary contact; a creep acting movable contact arm on which the second movable contact is mounted, and motion transfer means for tRansferring motion from the first switch to the second switch to cause the movable contact arm to move and the second movable contact to move into and out of engagement with the second stationary contact; the second stationary contact positioned in the housing so that the first direction creep action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause creep opening of the second switch and in the return direction the snap action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause snap action closing of the second switch.
Claim 2
Dependent Claim
280 words
Electrical sequencing apparatus comprising a housing, a first switch mounted in the housing including: a first stationary contact; a first movable contact; means to cause the first movable contact to move into and out of engagement with the first stationary contact, the means including a member movable in a first direction with creep action for a first interval, with snap action for a second interval and movable in a second return direction with creep action for a third interval, and with snap action for a fourth interval; a second switch mounted in the housing including: a second stationary contact mounted on a relatively stiff elongated member, the member cantilever mounted in the housing, and means are provided in the housing to bias the free end of the elongated member into desired adjusted position; a second movable contact movable into and out of engagement with the second stationary contact; a creep acting movable contact arm on which the second movable contact is mounted, and motion transfer means for tRansferring motion from the first switch to the second switch to cause the movable contact arm to move and the second movable contact to move into and out of engagement with the second stationary contact; the second stationary contact positioned in the housing so that the first direction creep action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause creep opening of the second switch and in the return direction the snap action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause snap action closing of the second switch.
Claim 3
Dependent Claim
38 words
Apparatus according to claim 1 in which a tab is provided on the free end of the movable contact arm and the motion transfer means is fixedly mounted on the tab and adapted to engage the first switch.
Claim 4
Dependent Claim
280 words
Electrical sequencing apparatus comprising a housing, a first switch mounted in the housing including: a first stationary contact; a first movable contact; means to cause the first movable contact to move into and out of engagement with the first stationary contact, the means including a member movable in a first direction with creep action for a first interval, with snap action for a second interval and movable in a second return direction with creep action for a third interval, and with snap action for a fourth interval; a second switch mounted in the housing including: a second stationary contact mounted on a relatively stiff elongated member, the member cantilever mounted in the housing, and means are provided in the housing to bias the free end of the elongated member into desired adjusted position; a second movable contact movable into and out of engagement with the second stationary contact; a creep acting movable contact arm on which the second movable contact is mounted, and motion transfer means for transferring motion from the first switch to the second switch to cause the movable contact arm to move and the second movable contact to move into and out of engagement with the second stationary contact; the second stationary contact positioned in the housing so that the first direction creep action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause creep closing of the second switch and in the return direction the snap action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause snap action opening of the second switch.
Claim 5
Dependent Claim
280 words
Electrical sequencing apparatus comprising a housing, a first switch mounted in the housing including: a first stationary contact; a first movable contact; means to cause the first movable contact to move into and out of engagement with the first stationary contact, the means including a member movable in a first direction with creep action for a first interval, with snap action for a second interval and movable in a second return direction with creep action for a third interval, and with snap action for a fourth interval; a second switch mounted in the housing including: a second stationary contact mounted on a relatively stiff elongated member, the member cantilever mounted in the housing, and means are provided in the housing to bias the free end of the elongated member into desired adjusted position; a second movable contact movable into and out of engagement with the second stationary contact; a creep acting movable contact arm on which the second movable contact is mounted, and motion transfer means for transferring motion from the first switch to the second switch to cause the movable contact arm to move and the second movable contact to move into and out of engagement with the second stationary contact; the second stationary contact positioned in the housing so that the first direction creep action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause creep closing of the second switch and in the return direction the snap action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause snap action opening of the second switch.
Claim 6
Dependent Claim
38 words
Apparatus according to claim 3 in which a tab is provided on the free end of the movable contact arm and the motion transfer means is fixedly mounted on the tab and adapted to engage the first switch.
Claim 7
Dependent Claim
280 words
Electrical sequencing apparatus comprising a housing, a first switch mounted in the housing including: a first stationary contact; a first movable contact; means to cause the first movable contact to move into and out of engagement with the first stationary contact, the means including a member movable in a first direction with creep action for a first interval, with snap action for a second interval and movable in a second return direction with creep action for a third interval, and with snap action for a fourth interval; a second switch mounted in the housing including: a second stationary contact mounted on a relatively stiff elongated member, the member cantilever mounted in the housing, and means are provided in the housing to bias the free end of the elongated member into desired adjusted position; a second movable contact movable into and out of engagement with the second stationary contact; a creep acting movable contact arm on which the second movable contact is mounted, and motion transfer means for transferring motion from the first switch to the second switch to cause the movable contact arm to move and the second movable contact to move into and out of Engagement with the second stationary contact; the second stationary contact positioned in the housing so that the first direction snap action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause snap action opening of the second switch and in the return direction the creep action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause creep closing of the second switch.
Claim 8
Dependent Claim
280 words
Electrical sequencing apparatus comprising a housing, a first switch mounted in the housing including: a first stationary contact; a first movable contact; means to cause the first movable contact to move into and out of engagement with the first stationary contact, the means including a member movable in a first direction with creep action for a first interval, with snap action for a second interval and movable in a second return direction with creep action for a third interval, and with snap action for a fourth interval; a second switch mounted in the housing including: a second stationary contact mounted on a relatively stiff elongated member, the member cantilever mounted in the housing, and means are provided in the housing to bias the free end of the elongated member into desired adjusted position; a second movable contact movable into and out of engagement with the second stationary contact; a creep acting movable contact arm on which the second movable contact is mounted, and motion transfer means for transferring motion from the first switch to the second switch to cause the movable contact arm to move and the second movable contact to move into and out of Engagement with the second stationary contact; the second stationary contact positioned in the housing so that the first direction snap action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause snap action opening of the second switch and in the return direction the creep action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause creep closing of the second switch.
Claim 9
Dependent Claim
38 words
Apparatus according to claim 5 in which a tab is provided on the free end of the movable contact arm and the motion transfer means is fixedly mounted on the tab and adapted to engage the first switch.
Claim 10
Dependent Claim
280 words
Electrical sequencing apparatus comprising a housing, a first switch mounted in the housing including: a first stationary contact; a first movable contact; means to cause the first movable contact to move into and out of engagement with the first stationary contact, the means including a member movable in a first direction with creep action for a first interval, with snap action for a second interval and movable in a second return direction with creep action for a third interval, and with snap action for a fourth interval; a second switch mounted in the housing including: a second stationary contact mounted on a relatively stiff elongated member, the member cantilever mounted in the housing, and means are provided in the housing to bias the free end of the elongated member into desired adjusted position; a second movable contact movable into and out of engagement with the second stationary contact; a creep acting movable contact arm on which the second movable contact is mounted, and motion transfer means for transferring motion from the first switch to the second switch to cause the movable contact arm to move and the second movable contact to move into and out of engagement with the second stationary contact; the second stationary contact positioned in the housing so that the first direction snap action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause snap action closing of the second switch and in the return direction the creep action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause creep opening of the second switch.
Claim 11
Dependent Claim
280 words
Electrical sequencing apparatus comprising a housing, a first switch mounted in the housing including: a first stationary contact; a first movable contact; means to cause the first movable contact to move into and out of engagement with the first stationary contact, the means including a member movable in a first direction with creep action for a first interval, with snap action for a second interval and movable in a second return direction with creep action for a third interval, and with snap action for a fourth interval; a second switch mounted in the housing including: a second stationary contact mounted on a relatively stiff elongated member, the member cantilever mounted in the housing, and means are provided in the housing to bias the free end of the elongated member into desired adjusted position; a second movable contact movable into and out of engagement with the second stationary contact; a creep acting movable contact arm on which the second movable contact is mounted, and motion transfer means for transferring motion from the first switch to the second switch to cause the movable contact arm to move and the second movable contact to move into and out of engagement with the second stationary contact; the second stationary contact positioned in the housing so that the first direction snap action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause snap action closing of the second switch and in the return direction the creep action of the movable member of the first switch is transferred to the movable contact arm of the second switch to cause creep opening of the second switch.
Claim 12
Dependent Claim
38 words
Apparatus according to claim 7 in which a tab is provided on the free end of the movable contact arm and the motion transfer means is fixedly mounted on the tab and adapted to engage the first switch.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |