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:
Aug. 02, 2011
Filed:
Feb. 23, 2010
Applicants:
Ralph Bonanotte, Mokena, IL (US);
Doug Beck, Paoli, IN (US);
Inventors:
Ralph Bonanotte, Mokena, IL (US);
Doug Beck, Paoli, IN (US);
Assignee:
Layne Christensen Company, Mission Woods, KS (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 73/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for installing a flexible lining tube in an underground pipe by eversion. A pressure vessel is equipped with a gasket that has an arcuate slot for receiving the lining tube in a manner that provides an effective seal without creating undue friction. A guide has a cylindrical wall curved in conformity with the slot and a conical surface leading to the cylindrical wall.