Abstract: A modular time sequence controller having multiple timing cams and switches. Modules of switches and cams may be added and removed without disturbing other modules. Clip means for retaining a switch in a module facilitates easy insertion and removal without disturbing other elements of the assembly.

Abstract: A first shaft of two concentric rotatable shafts is axially displaceable with respect to the other. Switch opening and closing means is responsive to the axial displacement of the first shaft, the axial displacement being responsive to the rotational output of the second shaft. A cam means is carried by the second shaft.

Abstract: An adjustable cycling switch has one condition for direct application of power to the primary winding of a transformer coupled at its secondary to energize a magnetron that provides microwaves in a microwave oven or the like. The cycling switch also has a second condition for variable adjustment to provide for periodic cyclical energization of the mentioned transformer and magnetron to reduce the effective average microwave power. During such cyclical energization of the transformer and magnetron, power is briefly supplied to the transformer through a surge protection or current limiting resistor at the beginning of each such cycle to reduce the high currents that may otherwise occur in the circuit which could damage switch contacts, the magnetron, and other circuit components; and afterwards full power is supplied and is later cut off.

Abstract: A time switch mechanism for automatically as well as manually operating a switch incorporated therein for the purpose of controlling the operation of a device such as a television or a radio, as well as a sleep timer. The time switch mechanism comprises a timing cam, a time setting member, a normally closed microswitch for operating the television or radio, a switch lever for operating the microswitch and cooperable with the timing cam and a switching cam, wherein the switching cam is operably secured to a sector gear which is rotatable at a predetermined speed.

Abstract: A multi-purpose timer comprising a control member, a first and second slide plates which can be operated by the control member, a microswitch which is operated by the first slide plate, a "snooze" actuating member connected to the second slide plate, a "snooze" operating member which is engageable with the second slide plate, a switch operating lever which is engageable with the first and second slide plates, and a timer setting drum, the timer mechanism, "sleep" mechanism and "snooze" mechanism being selectively used by change-over operation of the control member.

Abstract: A motor timer comprises a prefabricated timing mechanism block including a drive motor, a reduction gear, a clutch and a timing gear; a prefabricated contact mechanism block including a leaf-spring contact assembly and an actuating member for actuating the leaf spring contact interconnecting; and means for assemblying the blocks at a final stage of assembly.

Abstract: An automatic reset timer having a motor and a separate solenoid operated clutch. The solenoid also actuates a switch to timing position, through a first latch, the switch being held there by a second latch. Both latches are released by the timing mechanism. The double latch allows the switch to remain in timing position regardless of the solenoid position. A solenoid lever is mounted behind a mechanism plate and carries mode selectors for setting the type of control of the switch and clutch by the solenoid. These mode selectors are accessible through openings in the plate normally covered by the timer motor.

Abstract: A timer operative by means of a clock mechanism and having a variable operation period, wherein a main cam plate and a subsidiary cam plate are mounted coaxially on a common shaft so that they are rotatable relative to each other, each of said main and subsidiary cam plates having recessed peripheral portions and protruded peripheral portions. A single operation lever pressingly bears against the peripheral portions of said main and subsidiary cam plates so that, when the recessed peripheral portions of said main and subsidiary cam plates are brought into alignment with each other, the operation lever can drop into said aligned recessed peripheral portions.

Abstract: A device for randomizing the operation of an electrical switch such that it can be used to switch electrical devices at random time intervals. This device uses a mechanism which periodically disconnects a drive train from a motor, randomizes the position of the drive train, and uses the resultant position of the mechanism to trip an electrical switch.

Abstract: An alarm clock timer mechanism having a pair of coaxially mounted gear driven cam members with one of the cam members being axially movable to actuate an alarm or other form of control mechanism at a preset alarm time. One of the cam members is provided with a resiliently mounted cam follower which moves axially toward the other cam member at the alarm time. The resilient mounting allows the follower to ride smoothly on a lower surface of the other cam after the alarm time, thus precluding any high torque resetting loads on a timing motor. A manually operable reset mechanism is provided for axially moving the cam members away from each other to move the control mechanism to its off position and to simultaneously reset the resiliently mounted cam follower on an upper surface of the other cam.