E - Fixed Constructions – 03 – F
Patent
E - Fixed Constructions
03
F
61/5.1
E03F 3/06 (2006.01) E21B 19/00 (2006.01) E21B 19/07 (2006.01)
Patent
CA 1150520
W-2320 C IN THE PATENT OFFICE OF CANADA APPLICATION OF WILLIAM O. SCHOSEK RELATING TO DRIVE JAWS FOR AN UNDERGROUND PIPE INSTALLER DEVICE ABSTRACT OF THE DISCLOSURE Drive jaws for a device of the type used to install an underground pipe, service line, etc. between two given points, such as that opposed sides of a finished driveway or street, for example. The drive jaws preferably include a pair of spaced apart plates with aligned through holes sized for free passage therethrough of a rod used in the forma- tion of a hole for the pipe or other conduit. A pair of axially aligned laterally extending pivot pins are provided on respective side edges of each jaw with the axes thereof lying in a horizontal plane in a trans- verse relation through the common axis of the through holes; and includ- ing bronze bearing blocks on each side of the jaws to rotatably journal the pivot pins and for sliding engagement in slots provided in opposed side walls of the pipe installer device. This application is being filed under the International Convention and is based on United States Patent Application, Serial number 68,150 filed in the United States August 20, 1979.
358508
Richard Jean
Schosek William O.
LandOfFree
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