Did You Know...
...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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7849871 | Method and apparatus for controlling a fluid system A water controlling kit is connected to the fluid system, of a fire truck for example, used for pumping water to one or more fire hoses. The kit has a water level gauge, a signaling element and a control valve and is adapted to maintain the pressure at the inlet of ... | 12/14/2010 |
| 7300196 | Automatic dilution system with overflow protection A chemical solution dispensing apparatus uses a dissolving tank to hold a solid chemical cake. The dissolving tank delivers the chemical solution into a holding tank by gravitational flow and then to a receiving system. A liquid level sensor in the holding tank sens... | 11/27/2007 |
| 7013912 | Apparatus and system for utility waste and venting An improved high rise building drainage system method and apparatus for conducting waste water from plumbing fixtures, such as lavatories and the like, through prefabricated, modular waste-vent stack units extending through intervals and stack boxes for such units o... | 03/21/2006 |
| 6656871 | Method for production of catalyst During the deposition of a catalytic component on a carrier, the position of the liquid level of a slurry containing the catalytic component is controlled with high accuracy and the adhesion of the slurry to the lateral face of the carrier is prevented. I... | 12/02/2003 |
| 6599857 | Method for production of catalyst During the deposition of a catalytic component on a carrier, the position of the liquid level of a slurry containing the catalytic component is controlled with high accuracy and the adhesion of the slurry to the lateral face of the carrier is prevented. I... | 07/29/2003 |
| 5862946 | Gas dissolution under pressure The present invention is directed to precise, accurate mixing two or more chemicals in a metered vessel to achieve a precise, accurate concentration of the chemicals. More particularly, the chemicals are mixed in a vessel having constricted vent tubes wit... | 01/26/1999 |
| 5209254 | Water and sewerage system for construction, and protection for the same A water and sewerage system for a construction, has at least one water consumer, at least one water supply pipe adapted to supply water from a water source to the water consumer, at least one water drainage pipe adapted to drain water from said consumer t... | 05/11/1993 |
| 4321939 | Multi-liquid flow proportioning device This invention concerns a multi-liquid flow proportioning device comprising a vessel adapted to contain a first liquid, a container within said vessel adapted to hold a second liquid separate from said first liquid, separate inlet and outlet means respect... | 03/30/1982 |
