US3739113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible programmer for electric circuits
Assignee: ALPHA PRESS ELECTRONICS Inc
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Filing: 1971-06-22
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Granted: 1973-06-12
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Expires: 1991-06-22
Abstract
Abstract A device for providing repetitive pulses having adjustable width and spacing including a drive motor, a cam pin rotatable with the output shaft of the drive motor and a second cam pin carried with the first pin but angularly manually adjustable relative thereto. A switch mounted adjacent the paths of travel of the pins causes the motor to periodically reverse as the pins sequentially operate the switch back and forth. One or more other switches are operated by one or both of the cam pins to control external load means. The angular relationship of the pins is adjustable by moving one pin, through a friction clutch, relative to the other. Increasing the angle between pins increases the pulse spacing, and adjustment of an output switch position alters the pulse duration.
Inventors
- 👤 B Gruenwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:16
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/10; H01H43/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
A timer comprising first means mounted for reciprocating arcuate motion between preselected angularly spaced limits; means for repetitively driving said first means alternately in both directions between said limits; means for reversing the direction of said means for driving upon arrival of said first means at each of said limits; and means carried by said first means for actuating said means for reversing and for providing a cyclic output, wherein said means carried by said first means includes a first cam mounted in fixed relationship to said first means; and a second cam mounted for movement with respect to said fist cam, said second cam being angularly adjustable with respect to said first cam to adjust the angular spacing between said angularly spaced limits; and wherein said second cam comprises a disc fixedly attached to said output shaft; an adjustable disc frictionally engaging said fixed disc; and a cam surface carried by said adjustable disc.
Claim 2
Dependent Claim
155 words
A timer comprising first means mounted for reciprocating arcuate motion between preselected angularly spaced limits; means for repetitively driving said first means alternately in both directions between said limits; means for reversing the direction of said means for driving upon arrival of said first means at each of said limits; and means carried by said first means for actuating said means for reversing and for providing a cyclic output, wherein said means carried by said first means includes a first cam mounted in fixed relationship to said first means; and a second cam mounted for movement with respect to said fist cam, said second cam being angularly adjustable with respect to said first cam to adjust the angular spacing between said angularly spaced limits; and wherein said second cam comprises a disc fixedly attached to said output shaft; an adjustable disc frictionally engaging said fixed disc; and a cam surface carried by said adjustable disc.
Claim 3
Dependent Claim
146 words
A timer comprising first means mounted for reciprocating arcuate motion between preselected angularly spaced limits, means having an output shaft for repetitively driving said first means alternately in both directions between said limits; said first means including a disc attached to said output shaft for movement therewith; and a second disc carried by said output shaft, said second disc being angularly adjustable relative to said first disc; means for reversing the direction of said means for driving upon arrival of said first means at each of said limits; and means carried by said first means for actuating said means for reversing and for providing a cyclic output, said means carried by said first means including a first actuating pin attached to said output shaft; a second actuating pin carried by said second disc; and means for adjusting the angular spacing between said preselected angularly spaced limits.
Claim 4
Dependent Claim
146 words
A timer comprising first means mounted for reciprocating arcuate motion between preselected angularly spaced limits, means having an output shaft for repetitively driving said first means alternately in both directions between said limits; said first means including a disc attached to said output shaft for movement therewith; and a second disc carried by said output shaft, said second disc being angularly adjustable relative to said first disc; means for reversing the direction of said means for driving upon arrival of said first means at each of said limits; and means carried by said first means for actuating said means for reversing and for providing a cyclic output, said means carried by said first means including a first actuating pin attached to said output shaft; a second actuating pin carried by said second disc; and means for adjusting the angular spacing between said preselected angularly spaced limits.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |