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
| D179443 | December 1956 | Dayton |
| D194191 | December 1962 | Schweighofer |
| D205791 | September 1966 | Harding |
| D237594 | November 1975 | Vetter |
| D256678 | September 2, 1980 | Schmidt |
| 2027808 | January 1936 | Carlson |
| 2821695 | January 1958 | Strock |
| 3525159 | August 1970 | Mills |
| 3967236 | June 29, 1976 | Dietrich |
| 4044975 | August 30, 1977 | Blechen |
| 4138661 | February 6, 1979 | McAdams |
| 1094398 | December 1954 | FRX |
| 1335741 | July 1963 | FRX |
| 580671 | August 1958 | ITX |
Patent History
Patent number: D274047
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: 6/343,070
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: 6/343,070
Classifications
Current U.S. Class:
Element Or Attachment (4) (D10/74)
