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:
Jul. 19, 1988
Filed:
Apr. 09, 1987
Applicant:
Inventor:
Finn Hannover, Wilmington, DE (US);
Assignee:
Du Pont UK Limited, Stevenage, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ;
U.S. Cl.
CPC ...
156391 ; 156294 ; 156499 ; 156574 ; 219377 ;
Abstract
Heating apparatus particularly useful for installing heat expandable plastic pipe liner comprising a radiant heater and air circulation means for the uniform distribution of heat about the circumference of the plastic pipe.