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. 28, 2020
Filed:
Jan. 30, 2015
Harrison Spinks Components Limited, Leeds, West Yorkshire, GB;
David Clare, Barnsley, GB;
Simon Paul Spinks, Cawood, GB;
Richard Essery, Leeds, GB;
Michael Gallagher, Leeds, GB;
HARRISON SPINKS COMPONENTS LIMITED, Leeds, West Yorkshire, GB;
Abstract
A method of forming a pocketed spring unit for an upholstered article comprises taking successive strings of pocketed springs and welding at least one sheet of material to at least a first end of the pocketed springs. Anvilsare moved from a non-operative position to an operative position, in which they are located between adjacent pockets at upper and lower ends of the springs. This embodiment makes use of the surplus material that is formed at the ends of the pockets in the form of flaps or 'ears' of material. These flaps protrude upwardly initially, and then become folded flat as the spring unit advances between the rollsof material. The external anvils are then made to apply heat and pressure to the material flaps trapped between them and the internal anvils at the sides of the pockets, between the springs to weld them to the material from the rolls