Plenum unit for distribution of air or water

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Description

FIG. 1 is a perspective view of a plenum unit for distribution of air or water, showing my new design; and

FIG. 2 is an end elevation view thereof, the opposite end being a mirror image of that shown.

Referenced Cited
U.S. Patent Documents
D126769 April 1941 Turner
3244347 April 1966 Jenk
3698195 October 1972 Chapin
3699872 October 1972 Kruger
4077571 March 7, 1978 Harmony
4709557 December 1, 1987 Tosaka et al.
Patent History
Patent number: D317358
Type: Grant
Filed: May 4, 1988
Date of Patent: Jun 4, 1991
Inventor: John O. Spendrup (Grand Junction, CO)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Attorney: Donald W. Erickson
Application Number: 7/190,236
Classifications
Current U.S. Class: Vent, Ductwork, Or Element Thereof (D23/393)