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...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.

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Class 123/179.12 - Condition responsive


Subclass of Class 123 - Internal-combustion engines
Definition: Apparatus wherein the primer operates in response to a sensed
No. of patents: 9
Last issue date: 10/25/2011


NumberTitleIssue Date
8042511Method and device for priming a fuel metering device
In a method for priming a fuel metering device for an internal combustion engine with a piston arranged in a combustion chamber and driving a crankshaft that is rotatably supported in a crankcase, with a fuel pump that conveys fuel from a fuel tank to a metering val...
10/25/2011
7490584Fuel enrichment cold start/run circuit
A fuel enrichment cold start/run circuit and method pumps fuel from the fuel pump to an enrichment circuit inlet independently of a carburetor float bowl such that the enrichment circuit is supplied with fuel regardless of the orientation of the float bowl, includin...
02/17/2009
7267326Automatic priming system
An automatic priming system for internal combustion engines, which is operable to prime the carburetor of the engine at engine cranking speeds, and is automatically disabled after the engine starts. The automatic priming system is driven by pressure fluctuations wit...
09/11/2007
6915772Automatic priming system
An automatic priming system for internal combustion engines, which is operable at engine cranking speeds and which is automatically disabled at engine running speeds. The automatic priming system is driven by pressure fluctuations within the engine crankcase which a...
07/12/2005
6736103System for management of fuel in a cold start fuel passageway
A system for the management of fuel and fuel vapors in the cold start fuel passageway of an internal combustion engine which has a cold start fuel injector which, when activated, introduces fuel into the cold start fuel passageway. The system includes an engine cont...
05/18/2004
6681736Starter protective device
A starter protective device is provided which is capable of accurately determining the commencement of overrunning (i.e., timing of the commencement of starting of an engine) even in the presence of variations in the cycle of fluctuations in a battery vol...
01/27/2004
6029619Remote primer
A remote priming device that is particularly adaptable to a working machine having a handle section and an internal combustion engine with a resilient primer bulb, may be designed as a kit and retrofitted onto the working machine. The remote priming devic...
02/29/2000
4803963Automatic priming system for a marine engine
An automatic priming system for an outboard marine engine includes a pneumatic cylinder operably connected to the recoil pulley of the engine. The pneumatic cylinder is charged by the rotation of the pulley and the increased pressure is communicated to a ...
02/14/1989
4457271Automatically-controlled gaseous fuel priming system for internal combustion engines
The priming system for an internal combustion engine adapted to operate on a gaseous fuel includes a normally closed, solenoid-operated priming valve electrically connected to the engine ignition circuit through a selector switch and the normally closed c...
07/03/1984
 
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