Adaptable engine tachometer device

Data processing: measuring – calibrating – or testing – Measurement system – Speed

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C324S160000

Reexamination Certificate

active

06259998

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to engine monitoring devices, and more particularly to adaptable engine monitoring devices.
SUMMARY OF THE INVENTION
Engine monitoring is used throughout many industries to determine performance of an engine as well as to determine when servicing of an engine is needed. For example, the automotive industry examines such engine characteristics as the revolutions per minute of an engine over a period of time in order to assess the engine's performance and to determine when the engine might need servicing.
Industries use many different engine configurations that can range from one to eight cylinders and from two to four strokes. However, present engine monitoring devices are not adaptable for accurately monitoring these different configurations since they are specifically designed to monitor only one or two engine configurations.
Accordingly, it is a feature of the present invention to provide an engine tachometer device that is adaptable to all configurations of engines. It is another feature of the present invention to provide a device in a self-contained case that can accurately monitor all configurations of engines. It is yet another feature of the present invention to provide engine servicing indications based upon the monitored engine.
In accordance with one aspect of the present invention, an engine tachometer device is provided for determining the revolutions per minute of an engine which generates sparks. An electrical power supply input which is connected to a power source external to the device supplies electrical power to the device from the external power source. An internal power source is disposed within the device for supplying electrical power to the device. A power switch which is connected to the electrical power supply and to the internal power source provides power to the device by switching between the electrical power supplied via the input and via the internal power source. Another embodiment of the present invention includes the internal power source being a replaceable battery and containing components which protect the battery from at least one environmental characteristic of the environment that is external to the battery.
Additional objects and advantages of the present invention will be apparent from the detailed description of the preferred embodiment, the appended claims in the accompanying drawings, or may be learned by practice of the invention.


REFERENCES:
patent: 3764888 (1973-10-01), Anderson
patent: 3948039 (1976-04-01), Leveraus
patent: 4181883 (1980-01-01), Beeghly et al.
patent: 4350952 (1982-09-01), Holt et al.
patent: 4613129 (1986-09-01), Schroeder et al.
patent: 4680513 (1987-07-01), Kennedy
patent: 4934775 (1990-06-01), Koai
patent: 5109191 (1992-04-01), Nakamura
patent: 5353953 (1994-10-01), Sakaemura
patent: 5644491 (1997-07-01), Fiske et al.
patent: 5762425 (1998-06-01), Ouchi

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Adaptable engine tachometer device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptable engine tachometer device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptable engine tachometer device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2563745

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.