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:
Oct. 14, 1980
Filed:
Mar. 08, 1978
Applicant:
Inventor:
Theo Hammes, Cologne, DE;
Assignee:
Mauser Kommandit-Gesellschaft, Bruhl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264534 ; 425525 ;
Abstract
In the production of closed head drums, integral L-shaped roller chimes are formed outwardly from the side walls of the drums. In producing the drums, a thermoplastic parison or tubular member is placed within a mold and is shaped by blowing it outwardly against the mold surfaces. In the blowing operation, an inwardly open channel-shaped part is formed in the tubular member, then by moving one part of the mold relative to another, the channel-shaped part is compressed into the L-shaped chime.