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:
Nov. 28, 1989
Filed:
Sep. 15, 1988
Applicant:
Inventors:
Michael E Weller, House Springs, MO (US);
Joseph L Daghe, Decatur, IL (US);
Assignee:
Mueller Company, Decatur, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16L / ;
U.S. Cl.
CPC ...
137315 ; 137318 ; 137321 ; 138 94 ; 138 97 ; 403320 ; 411204 ; 411262 ;
Abstract
A method and apparatus for installing a plastic fitting and a line stopping mechanism to a main includes a stopper shaft which is used to remove a completion plug in the fitting during installation, and to control the line stopper mechanism once it is installed within the fitting; a connection between the stopper shaft and an external drive shaft is provided which includes both left and righthanded threads in order to prevent the connection from loosening while it is being torqued in different directions. A method of installing the fitting which includes electric resistance fusing is also disclosed.