Respiratory filter machine to reduce airborne disease transmission of a patient

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Description

FIG. 1 is a front perspective view of a respiratory filter machine to reduce airborne disease transmission of a patient, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a side elevational view thereof, opposite that shown in FIG. 3;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a front perspective view thereof, the broken line showing of the accessories-disposable plastic bag, folding chair and aerosol can is for illustrative purposes only and forms no part of the claimed design; and,

FIG. 7 is a back perspective view thereof, the broken line showing of the accessories-plastic bag and folding chair is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
3745991 July 1973 Gauthier et al.
4727871 March 1, 1988 Smargiassi et al.
4741332 May 3, 1988 Beaussant
5044363 September 3, 1991 Burkhart
5046492 September 10, 1991 Stackhouse et al.
5054480 October 8, 1991 Bare et al.
Foreign Patent Documents
995543 August 1976 CAX
Patent History
Patent number: D344586
Type: Grant
Filed: Apr 3, 1991
Date of Patent: Feb 22, 1994
Inventor: Thomas V. Choate (East Sandwich, MA)
Primary Examiner: Stella Reid
Attorney: Richard P. Crowley
Application Number: 7/679,587
Classifications
Current U.S. Class: Filter (37) (D24/162)