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:
Jan. 08, 1980
Filed:
Feb. 16, 1978
Applicant:
Inventor:
Kenneth Lewis, South Gate, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
13762544 ; 251298 ;
Abstract
A rotary valve in which a chamber has one or more circular ports opening into the chamber. A ball of flexible resilient material is journaled on the offset end of a bell crank shaft extending into the chamber. Rotation of the shaft rotates the axis of the ball around the inside of the chamber, moving the ball from port to port. When engaged with the port, the ball expands into the opening sealing off the port.