Chart drive
Description
FIG. 1 is a bottom, front, and right side perspective view of a chart drive showing my new design, the dotted or broken line showing of a typical chart is for illustrative purpose only and forms no part of the claimed design;
FIG. 2 is a front elevational view;
FIG. 3 is a left side elevational view;
FIG. 4 is a right side elevational view;
FIG. 5 is a top plan view;
FIG. 6 is a bottom plan view; and
FIG. 7 is a rear elevational view thereof.
Referenced Cited
U.S. Patent Documents
Other references
| 2670794 | February 1954 | Gallagher |
| 2932701 | April 1960 | Horstmann |
| 3064261 | November 1962 | Maeder |
| 3205502 | September 1965 | Chatelain et al. |
| 3422695 | June 1966 | Wilson et al. |
| 4760219 | July 26, 1988 | Daniell et al. |
| 4866224 | September 12, 1989 | Malone |
- Brochure--"Model 98 Multi-speed Battery operated Chart Drive". Brochure--"Model 99 Battery operated Chart Drive". General Catalog--Mercury Instruments, Inc. General Catalog--870-R. Catalog 99-2 (4 pgs.) "Model 99 Battery operated Chart Drive". Sonceboz--(2 pg. brochure) "Type 720 Test"--Quartz Controlled Battery operated Chart Drive with Programmer. Reynold Equipment Company--Quartz Chart Drive.
Patent History
Patent number: D316976
Type: Grant
Filed: Oct 5, 1988
Date of Patent: May 21, 1991
Assignee: Mercury Instruments, Inc. (Cincinnati, OH)
Inventors: Thomas R. Comerford (Cincinnati, OH), Hubert F. Yeary (Newtown, OH)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Wood, Herron & Evans
Application Number: 7/253,750
Type: Grant
Filed: Oct 5, 1988
Date of Patent: May 21, 1991
Assignee: Mercury Instruments, Inc. (Cincinnati, OH)
Inventors: Thomas R. Comerford (Cincinnati, OH), Hubert F. Yeary (Newtown, OH)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Wood, Herron & Evans
Application Number: 7/253,750
Classifications
Current U.S. Class:
Measuring, Regulating Or Indicating Instrument, Or Casing (D10/46)