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:
Jul. 31, 1990
Filed:
Mar. 07, 1989
Applicant:
Inventors:
Yasuo Yoneshige, Kawasaki, JP;
Atsushi Misumi, Yokohama, JP;
Shuji Hiromoto, Chigasaki, JP;
Toru Sakai, Tokyo, JP;
Assignee:
NHK Spring Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428198 ; 5448 ; 297219 ; 428212 ; 428213 ; 428284 ; 428288 ; 428297 ; 428298 ; 4284231 ; 428360 ; 428224 ;
Abstract
In a cushion which uses synthetic cotton formed of curled polyester fibers, the synthetic cotton is a mixture of first and second fibers having two different thicknesses. The fibers are three-dimensionally intertwined with air-passing space. The first fibers have the denier value of 20 or more, while the second fibers have the denier value of less than 20. The first and second fibers are mixed in the ratio of 0.5 to 2:1 by weight. These fibers of the synthetic cotton are bound at their intersections by means of a polyurethane binder such that the air-passing space is maintained.