Parabolic electric heater

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Description

FIG. 1 is a front and top-left side perspective view of a parabolic electric heater showing our new design;

FIG. 2 is an enlarged left side elevational view thereof, the right side being a mirror image of that shown;

FIG. 3 is an enlarged front elevational view thereof;

FIG. 4 is an enlarged rear elevational view thereof;

FIG. 5 is an enlarged top plan view thereof; and

FIG. 6 is an enlarged bottom plan view thereof.

The fragmentary broken-line showing of an electrical cord in FIGS. 1, 2 and 4, is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D45317 February 1914 Warner
D51043 July 1917 Brown
D51253 September 1917 Brown
D51525 November 1917 Falkenberg
D53916 October 1919 Kahn
D54520 February 1920 Ledig
D54635 March 1920 Lamb
D54889 April 1920 Brown
D60152 January 1922 Ledig
D60968 May 1922 Smith et al.
D64815 June 1924 Rutenber
D65046 July 1924 Barnes
D65471 August 1924 Graff
D66523 January 1925 Wolter
D68418 October 1925 Barnes
D84389 June 1931 Ajax
D145544 November 1945 Swartzbaugh
D147417 September 1947 Palma, Jr.
D152841 February 1949 Thompson et al.
D157659 March 1950 Chapman
D159008 June 1950 Seil et al.
D191384 September 1961 Hauser
D276364 November 13, 1984 Sibert
D288473 February 24, 1987 Schmidt et al.
D300353 March 21, 1989 Yurkovic
1462380 July 1923 Richardson
1526352 February 1925 Lightfoot et al.
1540007 June 1925 Homeyer
1614308 January 1927 Lamb
1665941 April 1928 Van der Meersch
1671378 May 1928 Pitt
1673296 June 1928 McManus
1677281 July 1928 Gilbert
1697606 January 1929 Maxson
1697607 January 1929 Maxson
1709052 April 1929 Anderson
1712001 May 1929 Gilbert
1727983 September 1929 Jermon
1743566 January 1930 Packeritz
1829303 October 1931 Schaber
1919558 July 1933 Johnson
2231070 February 1941 Harrison
2256049 September 1941 Gallup
2512661 June 1950 Huck
2528774 November 1950 Oberholtz et al.
2631217 March 1953 Aufiero
3446429 May 1969 Suzuki et al.
3540429 November 1970 Varberg et al.
3963382 June 15, 1976 Patton
Other references
  • Home Furnishings Daily, 8/5/65, p. 26, Reflector Heater, bottom, middle side of page. Photos "1 & 2", Chill Chaser, Mfg. by Manning-Bowman of Bonneville, MO, Nov. 1955. Photos "3-11", White Cross, producted prior to 10/7/88 by National Stamping and Electric Works of Chicago, Ill.
Patent History
Patent number: D312684
Type: Grant
Filed: Oct 7, 1988
Date of Patent: Dec 4, 1990
Assignee: National Presto Industries, Inc. (Eau Claire, WI)
Inventors: Richard L. Geissler (Chippewa Falls, WI), Roger L. Kelly (Eau Claire, WI)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt
Application Number: 7/254,944
Classifications
Current U.S. Class: Circular Or Cylindrical Housing (D23/336)