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:
Nov. 26, 1985
Filed:
May. 16, 1983
Applicant:
Inventor:
Sidney A Hiatt, Carthage, MO (US);
Assignee:
Leggett & Platt, Incorporated, Carthage, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47C / ; F16F / ;
U.S. Cl.
CPC ...
267100 ; 5247 ; 5248 ; 5256 ; 267166 ;
Abstract
A core spring assembly combines the use of rows and/or columns of round coil springs with rows and/or columns of rectangular torsion bar coil springs, all interconnected in a top plane by a welded wire grid so as to create a spring core assembly for a bedding mattress or box spring. In one preferred form, the rectangular torsion bar coil springs are located about the periphery of the spring assembly while in another embodiment the rectangular torsion bar coil springs are all located in the center one-third of the spring assembly so as to increase the firmness of that center section of the unit.