Motor controlled focussing attachment for telescopes
Description
FIG. 1 is a perspective view of a motor controlled focussing attachment for telescopes showing my new design with a telescope shown in broken lines for illustrative purposes only;
FIG. 2 is an enlarged side elevation view thereof;
FIG. 3 is an enlarged top plan view thereof;
FIG. 4 is an enlarged front elevation view thereof;
FIG. 5 is an enlarged rear elevation view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D175503 | September 1955 | Gottschalk et al. |
D175706 | October 1955 | Bednarz |
D178767 | September 1956 | Degrave, Jr. |
1792171 | February 1931 | Kruening |
463245 | February 1914 | FRX |
Patent History
Patent number: D286644
Type: Grant
Filed: Apr 5, 1984
Date of Patent: Nov 11, 1986
Inventor: James D. Burr (Evergreen, CO)
Primary Examiner: Susan J. Lucas
Assistant Examiner: C. E. Heflin
Attorney: Robert E. Harris
Application Number: 6/597,081
Type: Grant
Filed: Apr 5, 1984
Date of Patent: Nov 11, 1986
Inventor: James D. Burr (Evergreen, CO)
Primary Examiner: Susan J. Lucas
Assistant Examiner: C. E. Heflin
Attorney: Robert E. Harris
Application Number: 6/597,081
Classifications