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. 24, 1989
Filed:
Sep. 13, 1988
Applicant:
Inventors:
Volker Onnenberg, Wiehl, DE;
Gunter Mollmann, Hagen, DE;
Assignees:
Fritsche-Mollmann GmbH & Co., Lotte, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B32B / ;
U.S. Cl.
CPC ...
425 / ; 264 465 ; 264 468 ; 264D / ; 264D / ; 249 96 ; 425117 ; 4253871 ; 425388 ;
Abstract
The invention relates to a vacuum mold for manufacturing cushions with back-foamed covers, wherein a section of cover material is stretched across a mold cavity, held down at the rim of the cavity, but allowed to slide into the mold cavity under the influence of a vacuum. The cover is also placed against and fitted to contourings (ridges and/or grooves) of the mold cavity, and subsequently back-foamed. The resulting flexible foam core is allowed to harden and the finished cushion is removed from the form.