Flow sensor and flow resistive element

Details Flow sensor and flow resistive element Flow sensor and flow resistive element

2005-07-12

2005-07-12

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Volume or rate of flow

Using differential pressure

Reexamination Certificate

active

06915705

ABSTRACT:
A flow sensor is disclosed that measures a flow of fluid passing through a conduit and a flow resistive element for use in such a flow sensor. The flow sensor includes a housing having a main channel defined therethrough. A flow resistive element is disposed in the housing across the main channel. The flow resistive element includes a rigid body member having a first surface and a second surface. A plurality of unobstructed, wedge-shaped, openings are defined in the body member and extend through the rigid body member. In addition, a plurality of spokes extend from a central portion of the body member to its perimeter so that each spoke separates adjacent wedge-shaped openings from one another.

REFERENCES:
patent: 4083245 (1978-04-01), Osborn
patent: 4178919 (1979-12-01), Hall
patent: 4413530 (1983-11-01), Guadagnin et al.
patent: 4506553 (1985-03-01), Bruce et al.
patent: 4523481 (1985-06-01), Steen
patent: 4548076 (1985-10-01), Haake et al.
patent: 4599895 (1986-07-01), Wiseman
patent: 4754651 (1988-07-01), Shortridge et al.
patent: 4796651 (1989-01-01), Ginn et al.
patent: 4905709 (1990-03-01), Bieganski et al.
patent: 5033312 (1991-07-01), Stupecky
patent: 5038621 (1991-08-01), Stupecky
patent: 5060655 (1991-10-01), Rudolph
patent: 5107860 (1992-04-01), Malouvier et al.
patent: 5137026 (1992-08-01), Waterson et al.
patent: 5313955 (1994-05-01), Rodder
patent: 5357972 (1994-10-01), Norlien
patent: 5357975 (1994-10-01), Kraemer et al.
patent: 5450760 (1995-09-01), Lew et al.
patent: 5535739 (1996-07-01), Rapoport et al.
patent: 5546933 (1996-08-01), Rapoport et al.
patent: 5722417 (1998-03-01), Garbe
patent: 5743270 (1998-04-01), Gazzara et al.
patent: 5803066 (1998-09-01), Rapoport et al.
patent: 6017315 (2000-01-01), Starr et al.
patent: 6119723 (2000-09-01), Kenyon
patent: 6644132 (2003-11-01), Baumoel
patent: 0 086 259 (1981-11-01), None
patent: 0 772 026 (1997-05-01), None
Tatara et al., “An Apnea Monitor Using a Rapid-Response Hygrometer”, Journal of Clinical Monitoring, 1997, pp. 5-9, vol. 13, Kluwer Academic Publishers, Netherlands.
Berghuis et al., “Biophysical Measurement Series: Respiration”, 1992, pp. 55-67, SpaceLabs, Inc., Washington, USA.

Affiliated with

Also associated with

Rating

Flow sensor and flow resistive element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flow sensor and flow resistive element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow sensor and flow resistive element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3387401