Laryngectomy filter assembly

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Description

FIG. 1 is a top plan view;

FIG. 2 is a bottom plan view;

FIG. 3 is a side elevational view;

FIG. 4 is an end elevational view;

FIG. 5 is an exploded perspective view; and,

FIG. 6 is top perspective view.

Referenced Cited
U.S. Patent Documents
D313673 January 8, 1991 Karcher
5022394 June 11, 1991 Chmielinski
5042468 August 27, 1991 Lambert
5195527 March 23, 1993 Hicks
5435306 July 25, 1995 Stuart
5485837 January 23, 1996 Solesbee et al.
5488947 February 6, 1996 Frankel
5520174 May 28, 1996 Evans et al.
Patent History
Patent number: D384146
Type: Grant
Filed: Dec 21, 1995
Date of Patent: Sep 23, 1997
Assignee: Kapitex Healthcare Limited (Wetherby)
Inventor: Rory James Maxwell Smith (North Yorkshire)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: I. Simmons
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt, P.A.
Application Number: 0/48,161
Classifications
Current U.S. Class: Respirator, Vaporizer, Or Inhalation Tube (4) (D24/110); D24/1106
International Classification: 2902;