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:
Apr. 27, 1976
Filed:
Dec. 20, 1974
John W Soblesky, Clyde, OH (US);
Dale Products, Inc., Fremont, OH (US);
Abstract
A tube coupling having an arcuate grip surface which engages with and secures tubing with minimum scarring and distortion of the tubing. The grip surface is rotatable to successively present arcs of smaller radius to the tube whereby the gripping engagement tends to occur over a long line of contact. One embodiment employs a right-circular cylindrical cavity only slightly larger than the tube to be coupled for reception of the tube and a rotatable locking element mounted normal to the cavity and intersecting with the cavity to present a gripping surface to the cavity which upon rotation in a biased direction presents a groove defining in the cross-section of the cavity a succession of arcs of progressively smaller radius to the cavity and a tube therein until an arc conforms to and grippingly engages the tube as it bears against an opposing cavity wall. Various seal structures of elastomeric material are accommodated within the coupling body.