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:
May. 07, 1991
Filed:
Jun. 11, 1990
Applicant:
Inventors:
Eugene C Hunley, Jr, Rogers, AR (US);
Terry H Jozwiak, Witter, AR (US);
Assignee:
Amtrol Inc., West Warwick, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
137 15 ; 137218 ; 137307 ; 137360 ; 1374542 ;
Abstract
Process for replacing a cartridge in a housing of a freeze proof hydrant. A plunger within the cartridge is urged against a roller pin lodged in the cartridge. A first end of the cartridge is deformed away from a ridge in the housing. The cartridge is slid out of the housing and the first end of the replacement cartridge is deformed. The replacement cartridge is slid into place within the housing. The first end of the replacement cartridge expanded to capture the ridge in the housing.