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. 23, 1980
Filed:
Nov. 02, 1979
Applicant:
Inventor:
Charles C Partridge, Houston, TX (US);
Assignee:
ACF Industries, Incorporated, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251167 ; 251196 ; 251328 ;
Abstract
An expanding gate valve having a pair of seat spacers (70) which hold apart a pair of floating valve seats (32) to prevent them from binding against a gate mechanism (40) which is collapsed for movement between open and closed positions. The spacers (70) are cylindrical segments which fit in the valve chamber of a gate valve having a cylindrical body cavity (20).