Heat recovery ventilator

Description

FIG. 1 is a perspective view of our novel heat recovery ventilator showing the top, side and end thereof;

FIG. 2 is a view of the end at the left side of FIG. 3;

FIG. 3 is a view of the top;

FIG. 4 is a view of the far side of FIG. 1;

FIG. 5 is a view of the other end; and,

FIG. 6 is view of the other side.

Referenced Cited
U.S. Patent Documents
D142342 August 1945 De Flon et al.
D184288 January 1959 Mart
D187623 April 1960 Hamilton
D195487 June 1963 Goldsmith
D198147 May 1964 Phelps et al.
215572 May 1879 Chase
D275226 August 21, 1984 Nishigaki
D286565 November 4, 1986 Drucker et al.
2596008 May 1952 Collins
2617634 November 1952 Jendrassik
2917292 December 1959 Hittrich
3313343 April 1967 Ware et al.
3360038 December 1967 Stampes
3444926 May 1969 Stalberg
4099928 July 11, 1978 Norback
4258784 March 31, 1981 Perry et al.
4377201 March 22, 1983 Kruse et al.
4377400 March 22, 1983 Okamoto et al.
4389857 June 28, 1983 Svendsen
4653581 March 31, 1987 Yogo et al.
4815534 March 28, 1989 Fuerschbach
4987955 January 29, 1991 Bergqvist et al.
5002118 March 26, 1991 Olmstead et al.
5056590 October 15, 1991 Bohn
5072719 December 17, 1991 Burger et al.
5193610 March 16, 1993 Morissette et al.
Foreign Patent Documents
69785 December 1991 CAX
2059195 January 1992 CAX
340109 September 1921 DEX
885732 November 1981 SUX
Other references
  • Advertising materials from Ventex Sweden AB.
Patent History
Patent number: D376842
Type: Grant
Filed: Apr 12, 1995
Date of Patent: Dec 24, 1996
Assignee: Nutech Energy Systems Inc.
Inventors: John Franklin (London), Peter K. Grinbergs (Dorchester), Grant W. Miles (London)
Primary Examiner: Lisa P. Lichtenstein
Attorneys: D. Peter Hochberg, Mark Kusner, Michael Jaffe
Application Number: 0/37,426