Mask strap adjuster

Details Mask strap adjuster Mask strap adjuster

2007-01-16

2007-01-16

Lavinder, Jack W. (Department: 3677)

Buckles, buttons, clasps, etc.

Buckles

Harness

C024S593110, C024SDIG048

Reexamination Certificate

active

11104533

ABSTRACT:
A mask strap adjuster attaches a strap with right triangular ribs to a mask, allows the strap to be tightened by pulling the strap and comprises a base, a cover and a connector. The base has two corresponding moveable caps. Each cap has two nubs. The cover is mounted on the base and has a pawl and two nubs. The pawl engages the ribs on the strap to allow the strap to be tightened by simply pulling the strap. The nubs of the cover are pressed selectively by the nubs on the caps and press the cover away from the base and the pawl away from the ribs to loosen the strap. The cover and the base can be short.

REFERENCES:
patent: 215956 (1879-05-01), Miller
patent: 794098 (1905-07-01), Hainsfurther
patent: 4727630 (1988-03-01), Alan
patent: 4795384 (1989-01-01), Hattori
patent: 5774953 (1998-07-01), Mao
patent: 6126122 (2000-10-01), Ismert
patent: 6185794 (2001-02-01), Maggi
patent: 6219889 (2001-04-01), Lovato et al.
patent: 6467133 (2002-10-01), Chen
patent: 6691377 (2004-02-01), Pan
patent: 6966102 (2005-11-01), Shiue
patent: 2003/0182770 (2003-10-01), Koshoji
patent: 2003/0233737 (2003-12-01), Chen-Lieh
patent: 2005/0050692 (2005-03-01), Shiue

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