Breathing regulator with nonlinear positive pressure spring

Details Breathing regulator with nonlinear positive pressure spring Breathing regulator with nonlinear positive pressure spring

2004-04-26

2009-12-08

Douglas, Steven O (Department: 3771)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S204180, C128S204270, C128S205240, C128S200290, C128S207120, C137S495000, C137S908000, C251S082000, C251S083000

Reexamination Certificate

active

07628152

ABSTRACT:
A breathing regulator having a non-linear positive pressure spring is provided for use in an air supplied respirator. The regulator includes a housing formed from a regulator body and a cover sub-assembly, a diaphragm assembly, and the non-linear spring. The spring holds the diaphragm assembly closed and resists the force applied by air pressure during exhalation by the user, but collapses once a sufficient amount of force has been applied, thereby permitting the user to exhale freely.

REFERENCES:
patent: 2070661 (1937-02-01), Hughes
patent: 2378047 (1945-06-01), Strange
patent: 2500357 (1950-03-01), Ives
patent: 2814291 (1957-11-01), Holmes
patent: 2858829 (1958-11-01), Gagnan
patent: 3973588 (1976-08-01), Holst
patent: 4361145 (1982-11-01), Ekström et al.
patent: 4434774 (1984-03-01), Horiuchi
patent: 4625759 (1986-12-01), Craig
patent: 4640277 (1987-02-01), Meyer et al.
patent: 4887638 (1989-12-01), Hellquist et al.
patent: 5503140 (1996-04-01), Winefordner et al.
patent: 6176239 (2001-01-01), Grove et al.
patent: 6729331 (2004-05-01), Kay
patent: 2003/0000529 (2003-01-01), Kay
Handbook of Spring Design, Spring Manufactures Institute, Inc., 2002, pp. 3-4 and 49-76.
U.S. Appl. No. 10/739,752, filed Dec. 18, 2003.
U.S. Appl. No. 60/485,211, filed Jul. 4, 2003.

Affiliated with

Also associated with

Rating

Breathing regulator with nonlinear positive pressure spring does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Breathing regulator with nonlinear positive pressure spring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Breathing regulator with nonlinear positive pressure spring will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4126134