Attitude director indicator
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Description
FIG. 1 is a front elevational view of an attitude director indicator showing our new design;
FIG. 2 is a typical side elevational view thereof, the broken-line showing of the instrument housing being environmental and forming no part of the claimed design.
The drawing is lined to indicate contrasting colors. The rear of the indicator not shown, is substantially plain and unornamented.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
| D170183 | August 1953 | Collins et al. |
| D179443 | December 1956 | Dayton et al. |
| D180812 | August 1957 | Schweighofer |
| D190763 | June 1961 | Varner |
| D190968 | July 1961 | Andres |
| D205791 | September 1966 | Harding |
| D256678 | September 2, 1980 | Schmidt |
| 2821695 | January 1958 | Strock |
| 4326189 | April 20, 1982 | Crane |
| 33967236 | June 1976 | Dietrich |
| 1094398 | December 1954 | FRX |
| 1335741 | July 1963 | FRX |
| 580671 | August 1958 | ITX |
Patent History
Patent number: D274045
Type: Grant
Filed: Jan 27, 1982
Date of Patent: May 29, 1984
Assignee: Rockwell International Corporation (El Segundo, CA)
Inventors: Donald F. Schmidt (Cedar Rapids, IA), Siegfried Knemeyer, deceased (late of Yellow Springs, OH)
Primary Examiner: Nelson C. Holtje
Attorneys: Terry M. Blackwood, George A. Montanye, H. Fredrick Hamann
Application Number: 6/343,068
Type: Grant
Filed: Jan 27, 1982
Date of Patent: May 29, 1984
Assignee: Rockwell International Corporation (El Segundo, CA)
Inventors: Donald F. Schmidt (Cedar Rapids, IA), Siegfried Knemeyer, deceased (late of Yellow Springs, OH)
Primary Examiner: Nelson C. Holtje
Attorneys: Terry M. Blackwood, George A. Montanye, H. Fredrick Hamann
Application Number: 6/343,068
Classifications
Current U.S. Class:
Element Or Attachment (4) (D10/74)
