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:
Nov. 25, 2014

Filed:

Apr. 25, 2012
Applicants:

Guido Eigenmann, Carthage, MO (US);

Niels S. Mossbeck, Carthge, MO (US);

Darrell A. Richmond, Carthage, MO (US);

Inventors:

Guido Eigenmann, Carthage, MO (US);

Niels S. Mossbeck, Carthge, MO (US);

Darrell A. Richmond, Carthage, MO (US);

Assignee:

L&P Property Management Company, South Gate, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21F 35/00 (2006.01); A47C 23/04 (2006.01); A47C 27/06 (2006.01);
U.S. Cl.
CPC ...
A47C 27/065 (2013.01); A47C 23/04 (2013.01);
Abstract

Disclosed herein is a method of making a spring core () for a bedding or seating product (). The spring core () has coil springs () having unknotted end turns () made from high tensile strength wire. In each embodiment, the end turns () of the coil springs () are generally U-shaped having one arcuate leg () longer than the other (), the legs () being joined by a connector () having an arcuate bump () therein. The springs () are oriented in the spring core () such that a long leg () of one end turn () abuts a short leg () of the adjacent end turn () prior to being wrapped in helical lacing wire (). The high tensile wire enables the coil springs () to be manufactured using less wire than heretofore possible.


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