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:
Jul. 23, 2024
Filed:
May. 30, 2019
Avon Polymer Products Limited, Melksham, GB;
Christopher Andrew Ferry, Melksham, GB;
Avon Polymer Products Limited, Melksham, GB;
Abstract
Various embodiments provide a speech diaphragm module including: a body; a lid secured to the body to form an enclosed volume therein; a resilient film secured within the enclosed volume along an attachment joint formed around a periphery of the resilient film; and a tensioning feature arranged to displace an operative portion of the resilient film relative to the attachment joint to apply a tension across the resilient film. The attachment joint can be a solid state weld joint between the resilient film and the body to apply an initial tension across the resilient film, and the tension applied by the tensioning feature can be greater than the initial tension applied by the attachment joint. Some other embodiments provide a method of manufacturing a speech diaphragm module, a respirator, and a kit of parts for forming a speech diaphragm module.