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. 14, 1993
Filed:
Sep. 03, 1992
Applicant:
Inventors:
Russell J Wakeman, Newport News, VA (US);
John S Bright, Newport News, VA (US);
Kenric J Johnson, Newport News, VA (US);
Assignee:
Siemens Automotive L.P., Auburn Hills, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
25112916 ; 25112915 ; 2395855 ;
Abstract
The solenoid portion of a solenoid-operated valve is resiliently biased by a pre-loader against an internal shoulder on the valve body to maintain precision of the stator-armature working gap during the useful life of the valve. Several embodiments of pre-loader are disclosed, including a Belleville spring, a wave spring, and an elastomeric ring.