Ventilation unit

- Teknovent Oy

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Description

FIG. 1 is a front and right side perspective view of a ventilation unit, showing my new design;

FIG. 2 is a right side elevation view thereof, the opposite side being a mirror image of that shown;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan thereof; and,

FIG. 6 is a bottom plan view thereof.

Referenced Cited
Other references
  • Domestic Engineering, 2/49, p. 151, Wall Heaters-Dual and Single, middle right side of page. Mobile Home/Travel Trailer Dealer, 10/68, p. 6, Vent-Model 621, bottom right side of page. Hardware Age, Jan. 15, 1968, p. 16, Wall HeaterA, middle of page. Heating & Air conditioning Contractor, Mar. '64, p. 68, Vented Recessed Wall Furnace, bottom right side of page. Fuel Oil and Oil Heat, Feb. '57, p. 90, Air Conditioner, bottom right side of page. Grainger's Spring '86 Cat., p. 1199, Vented Gas Wall Furnace, top left side of page.
Patent History
Patent number: D325254
Type: Grant
Filed: Dec 13, 1989
Date of Patent: Apr 7, 1992
Assignee: Teknovent Oy (Martinniemi)
Inventor: Matti Ruuskanen (Haukipudas)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Ladas & Parry
Application Number: 7/450,368
Classifications
Current U.S. Class: Fan Or Ventilator (D23/370)