Switch

Details Switch Switch

1976-07-30

1979-01-02

Schaefer, Robert K.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

200DIG1, 361181, H01H 3500

Patent

active

041329023

ABSTRACT:
An electrically powered instrument having a handle which is adapted to be engaged by the hand of a user during the utilization of the instrument can include a switch-type structure which is actuated by the mere engagement of the hand with the handle without any physical or mechanical motion occurring. The switch includes electrodes extending along the handle which are electrically insulated from one another and which are located in such a manner that they are electrically connected through the user's hand when the hand engages the handle. The switch also includes a power source or supply for applying a voltage between the electrodes and a discriminating or detection structure for detecting the change in the electrical resistance between the electrodes occurring either when the handle is engaged by the hand of the user or when the handle is released by the hand of the user. The discriminating or detection structure serves to "release" power so as to operate to turn on the instrument when the electrodes are connected by the hand of the user.

REFERENCES:
patent: 3492542 (1970-01-01), Atkins
patent: 3641410 (1972-02-01), Vogelsberg
patent: 3737670 (1973-06-01), Larson
patent: 3947696 (1976-03-01), Larson et al.
Johnson, IBM Technical Disclosure Bulletin, vol. 13, No. 11, Apr. 1971, p. 3551 (Pushbutton switch with no moving parts).

Affiliated with

Also associated with

Rating

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 Switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1519027