Foldable portable overhead projector
Latest Dukane Corporation Patents:
FIG. 1 is a top plan view of a foldable portable overhead projector showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a side elevation view thereof;
FIG. 5 is an opposite side elevational view of that shown in FIG. 4;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a top plan view of the overhead projector in an unfolded condition, taken at a reduced scale;
FIG. 8 is a front elevational view thereof;
FIG. 9 is a side elevational view thereof;
FIG. 10 is an opposite side elevational view of that shown in FIG. 9;
FIG. 11 is a rear elevational view thereof;
FIG. 12 is a bottom plan view thereof;
FIG. 13 is a top, front perspective view thereof, taken toward the side of FIG. 4, the overhead projector being in the condition illustrated in FIG. 1; and
FIG. 14 is a top, front perspective view thereof, taken from the side of FIG. 9, the overhead projector being in the unfolded condition of FIG. 7.
D170633 | October 1953 | Gerald |
2273936 | February 1942 | Ceroni |
2718171 | September 1955 | Fitz Gerald |
3124035 | March 1964 | Lucas |
3167998 | February 1965 | Appeldorn et al. |
3285126 | November 1966 | Lucas |
3366005 | January 1968 | Benedict |
3653754 | April 1972 | Yamanaka |
3979160 | September 7, 1976 | Anderson et al. |
4449800 | May 22, 1984 | De Longis et al. |
4588271 | May 13, 1986 | Emura |
4696557 | September 29, 1987 | Tomizuka |
4728184 | March 1, 1988 | Kyhl |
4776688 | October 11, 1988 | Ushiro et al. |
4938587 | July 3, 1990 | Namioka et al. |
4968134 | November 6, 1990 | Shimizu et al. |
Type: Grant
Filed: Sep 29, 1989
Date of Patent: Dec 10, 1991
Assignee: Dukane Corporation (St. Charles, IL)
Inventor: Charles B. Jewison (Batavia, IL)
Primary Examiner: Melvin B. Feifer
Assistant Examiner: Adir Aronovich
Law Firm: Emrich & Dithmar
Application Number: 7/415,117