The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 21, 1976
Filed:
Mar. 17, 1975
Ewald Marquardt, Rietheim, D;
J. & J. Marquardt, Rietheim, D;
Abstract
An electrical switch comprises at least one fixed contact which is engageable by a movable contact contained on a first arm portion of a movable contact member which also has a second arm portion which is disposed at an angle to the first arm portion. An actuating member is engageable with the movable contact member and is displaceable over the second arm portion to engage the first arm portion and to pivot it in a direction to move the movable contact to engage the fixed contact. First spring means bias the actuating member in a direction toward engagement with the movable contact member and during the movement of the movable contact member the second arm portion is moved in a direction opposite to the direction of the first arm portion to force the first spring means to increase the biasing force thereof. In the closed position of the contact the first spring means may in one embodiment be increased in biasing force and in another embodiment be maintained at the same biasing force as its initial position. A second spring means acts in a direction to return the actuating member to a non-actuated position.