John Willigman

45608466, Dec 24, 1985

Nov 19, 1984

6/672520

Jerome C. Klopp - Arlington Heights IL
John Willigman - Elk Grove Village IL

The Singer Company - Stamford CT

H01H 4300

200 38R

A program timer wherein a single three blade switch assembly is utilized for both the line switching function and a cam track operated switch.

45873895, May 6, 1986

Dec 7, 1984

6/679349

John Willigman - Elk Grove Village IL

Controls Company of America - Schiller Park IL

H01H 1956
H01H 4310

200153LB

A switch assembly to provide snap action switching on a cam rise in a program timer includes a follower assembly on the free end of a first blade to engage the program member to reference the first blade relative to the program member. A cam follower for actuating a second blade has a relatively high coefficient of friction between it and the follower assembly so that when a steep cam rise is encountered the horizontal force from the cam rise forces the cam follower tightly against the follower assembly, to lock the cam follower to the follower assembly. At the end of the cam rise, the horizontal force is released and the snap action occurs.

49489283, Aug 14, 1990

Aug 16, 1989

7/394446

John Willigman - Elk Grove Village IL

Eaton Corporation - Cleveland OH

H01H 4310

200 38R

An electromechanical programmer having a user push-push reset action on the shaft of a rotary cam drum for actuating plural appliance function switches. Successive user push movements alternately latch and release the shaft between first and second axial positions. In the first axial position the shaft moves an auxiliary cam to close a line power switch for energizing a motorized cam drum advance and powering the program switches; and, the shaft is free-rotating with respect to the cam drum. In the second axial position the shaft moves an auxiliary cam to open the line power switch; and, the shaft is clutched to the drum to enable user rotation of the drum for appliance program interval selection.

47556358, Jul 5, 1988

May 29, 1987

7/055384

John Willigman - Elk Grove Village IL

Eaton Corporation - Cleveland OH

H01H 700
H01H 4300

200 35R

A electrical programmer (10, 120) is provided that features a first gear (18) that is rotated at a uniform rate by a drive source (16) and operative to rotate a driven gear (30) and an intermediate member (20) which, in turn, respectively operate to rotate a second cam (38) uniformally and a first cam (52) intermittently to open and close a first switch as a function of its uniform rotation; and, cam (52) is operative to open and close a second switch as a function of its intermittent rotation. Programmer (10, 120) preferably includes a rotary drum (110) operable to engage a plurality of electrical contacts in conjunction with the operation of the first and second sub-interval switches.

44676646, Aug 28, 1984

Sep 28, 1981

6/306208

John Willigman - Elk Grove Village IL
Guy A. Wojtanek - Schiller Park IL

The Singer Company - Stamford CT

F16H 2900

74116

The timing cam is advanced for switching purposes by the large reciprocating pawl acting on the ratchet teeth molded on the timing cam. When the program requires a timed period during which conditions remain the same the ratchet teeth are spaced so the pawl cannot pick up the next tooth until the cam is advanced by the small pawl acting on the separate ratchet provided with small, closely spaced teeth. This ratchet has a pinion gear driving the ring gear molded inside the timing cam. The steps imparted to the timing cam by the small pawl and ratchet are very small and consume appreciable time--the length of time taken to position the next tooth for engagement by the large pawl being determined by the space between the large teeth.

RE291587, Mar 22, 1977

Feb 10, 1975

5/548201

Roger J. Cartier - Hoffman Estates IL
George Obermann - Niles IL
John Willigman - Elk Grove Village IL

The Singer Company - New York NY

H01H 342

200 38B

The timer has switches including upper and lower passive blades and an active blade therebetween. The distal end of the lower passive blade has depending spacers which straddle the cam upon which the follower on the distal end of the active blade rides. The spacers reference the lower passive blade off the hub of the drum type program cam. The lower passive blade is provided with a rest or stop for the upper passive blade limiting downward movement of that blade. With precision molding, both passive blades are accurately referenced from the cam hub and the location of the follower which actuates the active blade is precisely located. Accuracy of switching is increased without increased precision in manufacture. Use of two cam tracks permits simultaneous actuation of the active and "passive" blades to effect faster switching. It is possible to provide a "make-make" arrangement instead of the double throw arrangement.