Airway valve

- NTC Technology, Inc.
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Description

FIG. 1 is a perspective view of an airway valve showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right-hand side view thereof;

FIG. 5 is a left-hand side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
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D276465 November 20, 1984 Clawson et al.
D398372 September 15, 1998 Barnes
3643686 February 1972 Koegel
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4241756 December 30, 1980 Bennett et al.
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4454893 June 19, 1984 Orchard
4699137 October 13, 1987 Schroeder
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Patent History
Patent number: D424193
Type: Grant
Filed: Oct 15, 1998
Date of Patent: May 2, 2000
Assignee: NTC Technology, Inc. (Wilmington, DE)
Inventors: William J. Wohltmann, Jr. (San Jose, CA), Barry J. Feldman (Cheshire, CT), John R. Nobile (Fairfield, CT), John L. Sandor (North Haven, CT), John A. Triunfo, Jr. (Fairfield, CT)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Erik Watterson
Law Firm: Trask, Britt & Rossa
Application Number: 0/95,090
Classifications
Current U.S. Class: D24/1106
International Classification: 2902;