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:
Jun. 23, 1998
Filed:
Jan. 13, 1997
Bill Dean Andrew, Tulsa, OK (US);
Paul Michael Hatch, Tulsa, OK (US);
Richard Leroy Goswick, Tulsa, OK (US);
William Joseph Tefft, Claremont, OK (US);
TDW Delaware, Inc., Wilmington, DE (US);
Abstract
A machine for use in butt fusing in axial alignment plastic pipe having a selected maximum diameter is adaptable by the use of specially designed inserts secured in the lower portions of fixed and moveable clamps, the inserts serving to elevationally raise segments of pipes to be joined when the machine is used to manufacture a segmented pipe turn. In addition to the employment of inserts providing increased height of support for pipe segments, the pivotal upper portions for the fixed and moveable clamps are replaced by specially designed upper clamp portions that have contacting surfaces configured to accept inclined and elevationally upwardly supported pipe segments. By the use of such specially designed inserts and replacement upper clamp portions a butt fusion machine can be employed to manufacture segmented pipe turns of the maximum pipe diameter for which the machine is designed.