Appeal No. 1997-1075
Application No. 08/335,084
BACKGROUND
The invention is directed to a device for determining load in internal combustion engines.
Claims 1 and 3 are independent. Claim 1 is reproduced below.
1. Device for determining load in internal combustion engines, said device comprising a pressure
sensor connected with a combustion chamber of an internal combustion engine, said pressure sensor
having means for producing an output signal depending on a combustion chamber pressure of said
combustion chamber,
a crankshaft angle sensor for detection of a crankshaft angle of the internal combustion engine
and processor means for determining a load of said internal combustion engine,
wherein said processor means include means for determining said load from a pressure
difference between two of said combustion chamber pressures, said two combustion chamber
pressures forming said pressure difference being measured at two different predetermined ones of said
crankshaft angle (x1, x2).
The examiner relies on the following reference:
Wataya 4,991,554 Feb. 12, 1991
Claims 1, 3-15, and 17 stand rejected under 35 U.S.C. § 103 as unpatentable over Wataya.
We refer to the Final Rejection (Paper No. 6), the Examiner's Answer (Paper No. 12), and the
Supplemental Answer (Paper No. 14) for a statement of the examiner's position and to the Brief (Paper
No. 11) and the Reply Brief (Paper No. 13) for appellants’ position.
- 2 -
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007