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. 31, 1995
Filed:
Oct. 06, 1993
Shigeru Ikeda, Kunitachi, JP;
Yoshio Oguma, Tokyo, JP;
France Bed Co., Ltd., Tokyo, JP;
Abstract
A pad is arranged on the upper and lower sides of a spring unit to provide a laminate structure. The laminate structure is covered with an outer cover body comprising top and bottom layers covering the corresponding pads and a side layer covering the laminate structure. A joining member of heat-shrinkable synthetic resin has one end width portion joined to the inner surfaces of the whole marginal edge portions of the top and bottom layers. The other end width portion of the joining member covers the corresponding outer marginal edge portions of the pads. The joining member, upon being heat shrunk, have another end width portion brought into firm engagement with the spring unit so that the pads and outer cover body are firmly held relative to the spring unit.