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.

Date of Patent:
Jun. 08, 1976

Filed:

Dec. 20, 1974
Applicant:
Inventor:

Fred G Heimann, Mount Clemens, MI (US);

Assignee:

Fruehauf Corporation, Detroit, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
156295 ; 156309 ; 427300 ; 428139 ;
Abstract

In the making of vehicle bodies such as truck and trailer bodies, the roof sheets are secured to the roof bows by means of a hot melt adhesive. Premature cooling of the adhesive which otherwise does not allow sufficient time to position the roof sheet and then mate it with the roof bows properly after the adhesive is applied, is prevented by employing a heat-insulating layer of glass fiber scrim cloth on the roof bows and upon which the hot melt adhesive is applied. Temporary clamping pressure forces the hot melt adhesive through the pores of the scrim cloth and into contact with the roof bows whereupon it rapidly cools and sets. The presence of the scrim cloth provides a substantial increase in the otherwise unacceptably low bonding strength of the hot melt adhesive.


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