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:
Apr. 09, 1991
Filed:
Oct. 30, 1989
Lonnie R Harmon, Carthage, MO (US);
Steadley Company, Carthage, MO (US);
Abstract
A spring element for a foundation unit and a foundation unit employing the spring element. The foundation unit is of the type having a top wire grid structure and a wooden bottom structure, with a plurality of the spring elements being disposed in space relationship between the grid structure and the bottom substructure. The spring elements include spaced support legs extending from a top portion, with the legs converging toward one another. Each leg has a series of spaced support segments, with the support segments lying generally in a single plane and extending oppositely from one another in a zig-zag fashion between the top portion and an attachment segment. Torsion segments are located between adjacent support segments, with the torsion segments extending generally perpendicular to the plane of the support legs. Suitable links are used to interconnect each torsion segment with its adjacent support segments of each support leg.