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:
Aug. 08, 1989
Filed:
Jun. 13, 1988
Applicant:
Inventor:
Walter Stumpf, Dunwoody, GA (US);
Assignee:
Simmons U.S.A. Corporation, Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B68G / ;
U.S. Cl.
CPC ...
29 91 ; 5477 ; 53450 ; 53550 ; 53114 ; 156 70 ;
Abstract
An improved method and apparatus for constructing an improved pocketed coil string, in which a tube of fabric is formed, a transverse seam is provided across the tube, a partially compressed coil spring is inserted adjacent to the seam, and a second seam is provided, thus encapsulating the spring. The fabric is guided around the outer surface of a tubular mandrel, thus forming a tube, and the spring is inserted into the mandrel such that as the spring exits the opposite side of the mandrel, it is within the tube of fabric. Excessive spring compression is avoided.