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:
Sep. 30, 1986
Filed:
Apr. 18, 1985
Applicant:
Inventor:
Ellsworth S Miller, Mt. Clemens, MI (US);
Assignee:
Lectron Products, Inc., Rochester, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 200 / ; 200277 ; 2003021 ;
Abstract
An electrical pressure switch that can be readily adapted for either normally open or normally closed operation and that has opposed annular seats, a movable contact and ball valve movable between and individually engageable with the seats, and an O-ring uniquely associated with the ball valve and a related sealing surface in seated, unseated and all intermediate positions of the valve to maintain an effective seal at all times against fluid pressure to which the switch is connected.