US 9,145,992 B2
Refrigeration line set fitting and method of using the same to join refrigeration lines to each otherGeneral
US 9,145,992 B2
Refrigeration line set fitting and method of using the same to join refrigeration lines to each other
Tech Center:
3700 Mechanical Engineering, Manufacturing and Medical Devices/Processes
Examiner:
Jason L Vaughan
Art Unit:
3726 Manufacturing Devices and Processes, Machine Tools and Hand Tools
Agent:
Inventors:
Michael Joseph Duggan; Michael J. Wilson; Bradley Arment; Forrest Nixon
Assignee:
Priority:
12/28/11
Filed:
12/13/12
Granted:
09/29/15
Expiration:
04/18/32
Abstract
A crimp fitting comprises a metal tube wall that forms both a cylindrical tube portion and an adjacent annular O-ring channel portion. The tube wall has a first wall thickness along the cylindrical tube portion and a second wall thickness along at least part of the O-ring channel portion. The second wall thickness is less than the first wall thickness. The cylindrical tube portion and O-ring channel are configured and adapted to encircle a cylindrical end portion of a tube when such end portion of the tube is inserted into the fitting.
Cooperative Patent Classification (CPC)
F16F16L13/142F16LY10T29/49906Y10TB21D39/046B21D