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:
Aug. 16, 2022
Filed:
May. 30, 2018
Applicant:
Hs Products Limited, Leeds, GB;
Inventors:
Simon Spinks, Leeds, GB;
David Clare, Leeds, GB;
Assignee:
HS PRODUCTS LIMITED, Leeds, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47C 27/06 (2006.01); A47C 27/045 (2006.01); A47C 27/07 (2006.01);
U.S. Cl.
CPC ...
A47C 27/064 (2013.01); A47C 27/0453 (2013.01); A47C 27/07 (2013.01);
Abstract
A resilient unit has strings of individual coil springs (not shown) inside pocketsare arranged in an array. The strings together form a spring unit and are each secured to a common cover sheet S, which comprises a non-woven elastic fabric. It is welded ultrasonically or thermally whilst under tension in one or both of its major dimensions—i.e. in-plane—to the pockets, the material of which is substantially inelastic and non-woven. In this example the welds, labelled W, are located substantially centrally with respect to the generally circular end surfaces of the pockets.