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, 1976
Filed:
Feb. 18, 1975
Applicant:
Inventor:
Robert W Niemeyer, Avon Lake, OH (US);
Assignee:
Alco Standard Corporation, Valley Forge, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285342 ; 2853827 ;
Abstract
An improvement is disclosed in a tube coupling device including first and second threadedly engageable coupling members and an annular sleeve received on the tube and having an end engageable with one of the members and contractible about the tube upon assembly of the coupling members. The improvement is defined by providing the sleeve with a second end having a diameter and a length such that the threaded coupling members cannot be interengaged when the sleeve is reversely oriented on the tube.