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| Number | Title | Issue Date |
| 3984707 | Spring return linear signal generator A linear signal generator, that is one operating axially as opposed to a rotating generator comprises a housing, an annular electric coil mounted about the longitudinal axis of the housing, a permanent magnet resiliently mounted for movement along the lon... | 10/05/1976 |
| 3980908 | Exposure control system A system for controlling the closing of a camera shutter includes photosensitive means for detecting the available light level in the field of view of the camera to provide an output control signal a predetermined time after initiation of shutter closure ... | 09/14/1976 |
| 3976923 | Pattern generating apparatus Integrated circuit mask patterns are laser machined by mounting substrates on a support that is periodically stepped in a y direction after each scan by a laser writing beam in an x direction. X-direction scanning is accomplished by mounting a mirror on a... | 08/24/1976 |
| 3963948 | Magnetic pulse generator A tubular soft iron member is slidably positioned within a magnet-coil assembly and adapted to respond to toggle action travel between two magnetically stable states by producing rapid changes in magnetic flux. Electrical pulses developed by the coil in r... | 06/15/1976 |
| 3961327 | Audible alarm for a synchronous motor A buzzer arm is attached to a synchronous motor to provide an audible alarm in response to energization of a winding of the motor and the relative position of the buzzer arm to a buzzer anvil extending from the motor.... | 06/01/1976 |
| 3943443 | Speed detectors A speed detector for detecting the speed of a moving body is of the type including a magnetic core, a detection coil wound about the core, a magnet with one pole thereof faced toward the periphery of the detection coil with a definite air gap therebetween... | 03/09/1976 |
| 3943390 | Deceleration detecting device In a deceleration detecting device, magnetic induction electromotive force is utilized as a signal for expanding an air bag, and magnitude of this magnetic induction electromotive force is proportional to a speed variation ratio of a movable magnetic subs... | 03/09/1976 |
| 3942051 | Shock actuated electrical pulse generator An electrical pulse generator comprising a closed magnetic circuit made up of permeable iron and permanent magnet material having a cup-shaped portion, a central rod shaped portion extending upwardly from the inside bottom of the cup portion and a general... | 03/02/1976 |
| 3937992 | Pulse keyboard switch The switch includes an annular permanent magnet, a plate of soft magnetic material at one side of the magnet, a stationary electric coil at the opposite side of the magnet, and an unrestrained free-flying member of soft magnetic material coaxial with magn... | 02/10/1976 |
