Air diffuser

- Soft Construction AB

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Description

FIG. 1 is a front perspective view of an air diffuser showing my new design;

FIG. 2 is a perspective view of the ring thereof, shown separately for clarity of illustration;

FIG. 3 is a front perspective view thereof with the cover removed to show the air directing plate mounted thereon;

FIG. 4 is a front perspective view of the cover thereof, shown separately for clarity of illustration; and

FIG. 5 is a rear perspective view of FIG. 4.

Referenced Cited
U.S. Patent Documents
D123329 October 1940 Serre et al.
2558421 June 1951 Daninhirsch
2994259 August 1961 O'Day
Foreign Patent Documents
2334256 January 1975 DEX
2654131 June 1978 DEX
504911 May 1976 SUX
Other references
  • Architectural Record, Apr. 1962, p. 27, Carnes Round Diffusers, Forms One, Two, Three, Four, top of page. Architectural Forum, May 1957, p. 198, Round Diffusers 1, 2, 3, 4, 5, and 6, middle right and lower left, middle, and right sides of page respectively. American Builder, 2/60, p. 2, Ceiling Heater, Model 9090, Heat-A-A-Ventilite, middle left side of page. Architectural Record, Dec. 1961, p. 189, Aluminum Typed Directional Diffuser, top middle side of page. Architectural Record, Jul. 1960, p. 258, Round Ceiling Diffuser, top left side of page.
Patent History
Patent number: D317819
Type: Grant
Filed: Jul 17, 1989
Date of Patent: Jun 25, 1991
Assignee: Soft Construction AB (Stockholm)
Inventor: Bengt Sello (Stockholm)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Kinzer, Plyer, Dorn, McEachran & Jambor
Application Number: 7/380,270
Classifications
Current U.S. Class: Circular (D23/390)