Air exchange ventilation unit

Description

FIG. 1 is a perspective view of an air exchange ventilation unit embodying my new design;

FIG. 2 is a front elevation view thereof, the rear being a mirror image of that shown;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left end elevation view thereof;

FIG. 5 is a right end elevation view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevation view of an air exchange ventilation unit, showing a second embodiment of my new design, the rear being a mirror image thereof;

FIG. 8 is a top plan view of FIG. 7;

FIG. 9 is a right end elevation view of FIG. 7, the left end being the same as that of the first embodiment, as shown in FIGS. 1 and 4; and,

FIG. 10 is a bottom plan view of FIG. 7.

Claims

The ornamental design for an air exchange ventilation unit, as shown and described.

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Inventors:	Hague; Stephen W. (Cohassett, MA)
Appl. No.:	07/538,520
Filed:	June 15, 1990

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Current U.S. Class:	D23/370
Field of Search:	;D23/328,388,393,392,387,390,391 ;165/54

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References Cited [Referenced By]

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U.S. Patent Documents

4415019	November 1983	Hunzicker

Other References

Heating & Air Conditioner Contractor, Jan. 1964, p. 16, Lennox single package roof top air conditioning-heating power source assembly, bottom left side of page..

Primary Examiner: Gandy; James M.
Assistant Examiner: Lichtenstein; Lisa
Attorney, Agent or Firm: Davis, Bujold & Streck