子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Timer construction | US4286248 | 1948-08-06 | US2553846A | 1951-05-22 | CLEMENS GEORGE S |
| 22 | Time element electroresponsive device | US34932940 | 1940-08-01 | US2254730A | 1941-09-02 | HERBERT BUTTERFIELD TREVOR LUN |
| 23 | Circuit controller | US2187795D | US2187795A | 1940-01-23 | ||
| 24 | Mechanical delay timer | US10788719 | 2004-02-27 | US06861601B2 | 2005-03-01 | Troy A. Heien |
| A timer for delaying the operation of a toggle switch for a pre-set interval includes a mechanical, spring powered timer which drives a cam that engages the toggle of a conventional wall switch to move the toggle from one position to another. The timer is contained within a housing which, in turn, detachably connects to a housing floor that is mounted over the toggle switch cover plate. | ||||||
| 25 | Program centralled, cam operated switch assembly | US45188674 | 1974-03-18 | US3930132A | 1975-12-30 | HARRIS JOHN L |
| A heavy duty contactor mechanism for refrigeration compressor motors is directly actuated by a timing mechanism controlled by a thermostat. The timing mechanism protects against false starts from thermostat vibration, and interposes a delay between stopping and starting of the compressor sufficient to allow pressures to equalize. Power for operating the contactor switches is stored in a spring while the timer motor is running through the delay period.
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| 26 | Control device and system | US32171573 | 1973-01-08 | US3833818A | 1974-09-03 | HARRIS J |
| A heavy duty contactor mechanism for refrigeration compressor motors is directly actuated by a timing mechanism controlled by a thermostat. The timing mechanism protects against false starts from thermostat vibration, and interposes a delay between stopping and starting of the compressor sufficient to allow pressures to equalize. Power for operating the contactor switches is stored in a spring while the timer motor is running through the delay period.
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| 27 | Control device | US10838061 | 1961-05-08 | US3181036A | 1965-04-27 | HARRIS JOHN L |
| 28 | Jog limit device | US49594655 | 1955-03-22 | US2888626A | 1959-05-26 | MACOY EUGENE W; ODQUIST HAROLD T |
| 29 | Time delay control device | US45121254 | 1954-08-20 | US2825770A | 1958-03-04 | HELSPER ROBERT G |
| 30 | Torsion oscillator mechanical switch | US39926653 | 1953-12-21 | US2816975A | 1957-12-17 | SNYDER ELLERY P |
| 31 | Electric switch | US12319549 | 1949-10-24 | US2636089A | 1953-04-21 | HENRY MIDGLEY ALBERT |
| 32 | Check controlled time switch | US3103048 | 1948-06-04 | US2551730A | 1951-05-08 | DEL SOL ANTHONY R |
| 33 | Automatic control circuit | US12097849 | 1949-10-12 | US2541477A | 1951-02-13 | MOUL WILLIAM S |
| 34 | Circuit maker and breaker | US2149548 | 1948-04-16 | US2513754A | 1950-07-04 | MICHAEL SIDWAR |
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