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:
Dec. 11, 2001
Filed:
Nov. 02, 1999
Richard L. Palinkas, Northfield, CT (US);
CK Witco Corporation, Middlebury, CT (US);
Abstract
An elastomeric spring system having non-linear force-deflection characteristics and low rebound is provided. The system comprises a housing and a plurality of first and second spring members movably disposed in alternating relationship within a bore defined by the housing. The first and second spring members are preferably formed from polyurethane such as the two part castable urethanes made from polyether-isocyanate or polyester-isocyanate prepolymers cured with organic diamine or polyol materials. When subject to a force along the axis of deflection, the first spring member is adapted to expand and progressively envelope the second spring members until the hemispherical ends of two of the first spring members meet within the first spring member, thereby causing the force-deflection characteristics of the spring to be nonlinear.