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:
Jan. 13, 2026
Filed:
Nov. 13, 2020
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Vitaly Kapelevich, Auckland, NZ;
Christopher Gareth Sims, Auckland, NZ;
David Monroy Felix, Auckland, NZ;
Blair Raymund Dadson Murphy, Auckland, NZ;
Matthew Robert Geoff Slight, Auckland, NZ;
Vidhi Jayeshkumar Shah, Auckland, NZ;
Kavyn Manikkam, Auckland, NZ;
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Abstract
This disclosure provides a directional adjustment unit for a headgear for a respiratory mask. The directional adjustment unit provides an increased resistance to extension of one or more straps of the headgear when the headgear is under tensile forces, as compared to a lower resistance to retraction of the one or more headgear straps. The directional adjustment unit comprises a movable frictional engagement member comprising an aperture, wherein the aperture is arranged to receive a filament of a strap of the headgear therethrough, wherein the frictional engagement member in a first configuration provides a disengaged or pre-activated configuration with respect to the filament, and in a second configuration provides an engaged configuration with respect to the filament. Features are provided which improve the operation of such a directional adjustment unit. These features include features to help resist bending of the filament inside the directional adjustment unit, features to vary frictional engagement between the frictional engagement member and the filament, and features to reduce sticking of the frictional engagement member in a given position.