Motors: spring – weight – or animal powered – Spring – With winding means
Patent
1997-05-29
1999-11-23
Herrman, Allan D.
Motors: spring, weight, or animal powered
Spring
With winding means
251 69, 475 4, F03G 108, F16K 3144
Patent
active
059883197
ABSTRACT:
An apparatus for effecting actuation of a device. The device has a home position and a set position and the apparatus returns the device to the home position upon loss of power to the apparatus. In its preferred embodiment, the apparatus includes a drive motor for providing a driving force to a drive shaft, and a bias member having a cocking mechanism and a release mechanism. The bias member provides a bias force to a bias shaft when the cocking mechanism is cocked and the release mechanism is released; the release mechanism is released when power is lost to the actuator. The preferred embodiment of the apparatus further includes a drive member which delivers an actuating force to an actuating shaft in response to forces received on an input shaft. Still further, the apparatus preferably includes a transmission mechanism coupled with the drive shaft, with the bias shaft, and with the input shaft. The transmission mechanism delivers the driving force to the bias shaft when a clutch gear arrangement is engaged with the transmission mechanism. The transmission member delivers the driving force to the input shaft when the bias shaft is locked. The transmission mechanism delivers the bias force to the input shaft when the power is lost to the actuator.
REFERENCES:
patent: 1784094 (1930-12-01), Fletcher
patent: 2674903 (1954-04-01), Doster
patent: 2930571 (1960-03-01), Vogl
patent: 3279744 (1966-10-01), Fieldsen et al
patent: 3808895 (1974-05-01), Fitzwater
patent: 4090589 (1978-05-01), Fitzwater
patent: 4113063 (1978-09-01), Troy
patent: 4440382 (1984-04-01), Pruvot et al.
patent: 4533114 (1985-08-01), Cory et al.
patent: 4621789 (1986-11-01), Fukamachi
patent: 4669578 (1987-06-01), Fukamachi
patent: 4741508 (1988-05-01), Fukamachi
patent: 4881420 (1989-11-01), Paul, Jr.
patent: 4920811 (1990-05-01), Hopper
patent: 5182498 (1993-01-01), Stuhr
patent: 5310021 (1994-05-01), Hightower
patent: 5518462 (1996-05-01), Yach
Hudson Hugh F.
Ulicny Dennis J.
Herrman Allan D.
Johnson Service Company
LandOfFree
Transmission for a return-to-normal actuator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission for a return-to-normal actuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission for a return-to-normal actuator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1210709