Differential pressure transducer
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FIG. 1 is an upper front and left side perspective view of a differential pressure transducer showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a left end elevational view thereof;
FIG. 7 is a right end elevational view thereof;
FIG. 8 is an upper front and left side perspective view of a differential pressure transducer showing a second embodiment of my new design;
FIG. 9 is a top plan view thereof;
FIG. 10 is a rear elevational view thereof;
FIG. 11 is a bottom plan view thereof;
FIG. 12 is a front elevational view thereof;
FIG. 13 is a left end elevational view thereof;
FIG. 14 is a right end elevational view thereof;
FIG. 15 is an upper front and left side perspective view of a differential pressure transducer showing a third embodiment of my new design;
FIG. 16 is a top plan view thereof;
FIG. 17 is a rear elevational view thereof;
FIG. 18 is a bottom plan view thereof;
FIG. 19 is a front elevational view thereof;
FIG. 20 is a left end elevational view thereof;
FIG. 21 is a right end elevational view thereof.
| D109572 | May 1938 | Van Vleck |
| D140570 | March 1945 | Leupold |
| D287359 | December 23, 1986 | Ohashi |
| 3631439 | December 1971 | Nichols |
| 4006641 | February 8, 1977 | Alten |
| 4656454 | April 7, 1987 | Rosenberger |
- Micro Switch data sheet 84-07979-4, 1 88 entitled, Solid State Miniature Pressure Sensors, 14 PC/16 PC Series. Micro Switch Catalog 15 entitled, Specifier's Guide for Pressure Sensors, transducers on pp. 6, 7, 12, 20, 28, 32, 40, Issue 3. Micro Switch data sheet 84-07936-C entitled, Solid State Low Pressure Sensors, 163PC01D48, Issue 4 supplement to Cat. 15. Micro Switch data sheet 84-07984-A, entitled, Solid State Miniature Pressure Sensors Amplified Output, Issue 2, Cat. 15. Micro Switch data sheet 84-07984-0, entitled, Solid State Miniature Pressure Sensors, Amplified Output, 180 PC Series. Machine Design, Nov. 24, 1988 article, "Tiny Sensors Keep a Close Watch on the Body", (cover and pp. 3 and 64-70).
Type: Grant
Filed: Dec 30, 1988
Date of Patent: Jul 30, 1991
Assignee: Honeywell Inc. (Minneapolis, MN)
Inventor: Said Karbassi (Monroe, WI)
Primary Examiner: Susan J. Lucas
Assistant Examiner: J. Sincavage
Attorney: Charles L. Rubow
Application Number: 7/292,576
