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:
Jul. 20, 1982
Filed:
Oct. 14, 1980
Applicant:
Inventor:
Verne P Donner, Palatine, IL (US);
Assignee:
Deltrol Corp., Bellwood, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F15B / ;
U.S. Cl.
CPC ...
251322 ; 137359 ; 13762525 ; 13762568 ; 251337 ; 251367 ;
Abstract
A three way slide valve includes a rectangular valve slide fitted into a housing formed of two halves having mating flat surfaces. Each housing half is recessed to provide a chamber for the valve slide and also a spring chamber which restrains both ends of a double acting return spring. One end of the return spring engages one end of the valve slide and the other part of the spring engages a loop on the valve slide for return to center action. Ports in the housing halves are provided with shear seals in engagement with the valve slide.