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.

Date of Patent:
Apr. 03, 1984

Filed:

Jul. 16, 1981
Applicant:
Inventor:

Walter Stumpf, Munster, IN (US);

Assignee:

Simmons U.S.A. Corporation, Atlanta, GA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B32B / ; B65B / ;
U.S. Cl.
CPC ...
53428 ; 53114 ; 53438 ; 53450 ; 53529 ; 53550 ; 156 70 ; 156 731 ; 156200 ; 156290 ; 156352 ; 156365 ; 156383 ; 156464 ; 156465 ; 156497 ; 156553 ; 1565801 ; 1565802 ; 1565831 ;
Abstract

A method and apparatus are disclosed for making a series of coil springs pocketed within individual pockets in an elongate fabric strip comprised of two overlying plies capable of being thermally welded together. The fabric strip is fed along a guide path during which compressed coil springs are inserted between the piles with the axes of the springs substantially normal to the planes of the plies, whereafter the fabric plies are thermally welded together longitudinally and transversly to form a series of connected pocketed springs. After thermal welding, the pocketed springs are passed through a turner assembly during which the coil springs are reoriented within the fabric pockets to positions wherein the axes of the springs are transverse to the fabric strip.


Find Patent Forward Citations

Stumpf, Walter. (1984). Method and apparatus for making a series of pocketed coil springs (U.S. Patent No. 4439977). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4439977

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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