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:
Oct. 28, 1997
Filed:
Sep. 09, 1996
William J Purdy, White Plains, NY (US);
Roy E Reed, Plainfield, IN (US);
Kerry L Jacobs, Mooresville, IN (US);
Veritas Enterprises, Inc., White Plains, NY (US);
Abstract
A cushioning mattress is provided to normalize and distribute the weight of a patient's body to reduce the tangential forces bearing on the skin of the patient. The cushioning mattress comprises a top surface, a bottom surface and a series of alternating 'tunnel' billows and 'loop' billows. Each tunnel billow comprises a separate piece of material affixed to the top or bottom surface along two parallel seams to define a wide-based closed cell. Each loop billow comprises a separate piece of material affixed to the top or bottom surface along a single seam to define a narrow-based closed. Each tunnel and loop billow contains a visco-elastic material capable of conforming to any surface which it engages. The volume of the visco-elastic material contained in each loop billow is lesser than the volume contained in each tunnel billow such that the flowability of the material in each loop billow is greater than that of each tunnel billow, thereby permitting the upper surface of the mattress defined by the loop billows to engage and be adjacent the patient's skin to equalize the pressure bearing thereagainst.