Abstract: Two pipes for low pressure water systems include a pair of tapering surfaces secured together by a threaded engagement in which the thread of one member extends helically for less than three hundred sixty degrees.
Type:
Grant
Filed:
April 29, 1981
Date of Patent:
October 30, 1984
Assignee:
Clare M. Major
Inventors:
Frederick A. Major, deceased, Henry M. Woike, Clare M. Major, executrix