Rotating cam limit switch

Details Rotating cam limit switch Rotating cam limit switch

1988-03-11

1989-12-05

Scott, J. R.

Electricity: circuit makers and breakers

Retarded

Clock train

74568R, 200 38BA, 200 38CA, 200574, H01H 1962, H01H 342, F16H 5300

Patent

active

048854379

ABSTRACT:
The rotating cam limit switch includes a hub, a position screw area, a position screw, a position wheel, a retractable cam, a dwell wheel, a dwell screw, a dwell screw arm, a spring wave washer and a locking ring. The hub is to be mounted on a rotating shaft which is to activate a non-rotating switch assembly. Near a first axial end, an integral position screw arm and position flange extend radially from the integral hub. The position screw arm carries a position screw, which is snap fitted onto the arm, which operatively engages the position wheel rotatably mounted on the hub next to the position screw arm. The dwell wheel is rotatably mounted on the position wheel. The dwell wheel is operatively engaged by the dwell screw carried by the dwell screw arm integrally formed with a dwell flange. The dwell screw arm is rotatable on the hub but fixed to the position wheel. The wave washer and the locking ring, mounted near a second axial end of the hub, compress the rotating components together. A cam chamber defined by the position and dwell wheels receives a retracted portion of the flexible elongate retractable cam. The dwell wheel operatively engages the cam to vary the length of the exposed surface of the cam. The exposed surface of the cam activates the switch of the switch assembly. Differing indicia of degree position and dwell are marked about the circumference of the position and dwell wheels.

REFERENCES:
patent: 2903528 (1959-09-01), Kuhn
patent: 2921151 (1960-01-01), Kral
patent: 3270582 (1966-09-01), Barth
patent: 3320375 (1967-05-01), Aldrich et al.
patent: 3792627 (1974-02-01), Tarello
patent: 3839925 (1974-10-01), Ficken et al.
patent: 3886378 (1975-05-01), Morgan
patent: 4031339 (1977-06-01), Koch
patent: 4238654 (1980-12-01), Hermle
patent: 4424423 (1984-01-01), Hermle
patent: 4603238 (1986-07-01), Griswold et al.
Mc-Graw Edison GEMCO Catalog Sec 1980, (pp. 1-40) and Sec 1981, (pp. 1-20) 6/83.
Automatic Timing & Controls Co. Catalog, (pp. Face 45-50, 95-100, 105 end) 7/79.

Affiliated with

Also associated with

Rating

Rotating cam limit switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotating cam limit switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotating cam limit switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2035793