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:
Jun. 18, 1985
Filed:
Nov. 25, 1983
Charles E Schiedegger, Metamora, MI (US);
Vean Elfes, Lapeer, MI (US);
Metamora Products Corp., Metamora, MI (US);
Abstract
A heat bonded composite plastic article comprises a sheet of solid thermoplastic material such as polypropylene an envelope or jacket of urethane foam, the jacket of foam being heat staked directly to the thermoplastic material in a plurality of adjacent but discontinuous locations characterized by permanent compression of the foam and welding of the solid thermoplastic material into the foam, the areas in the opposite faces of the article being in substantially exact registration with one another. The apparatus for producing the article comprises a press like combination of heated platens mounted on pivot arms which are operated by air cylinders, each of the platens having stakes which perform the compression and welding functions described above. In addition, one of the platens preferably carries a knife edge to trim the urethane foam around the periphery of the solid plastic body. An assembly method using a semi-automated apparatus is disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile