...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.
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 |
| 7568256 | Heated Windshield Wiper Apparatus A heated windshield wiper apparatus with replaceable blade is disclosed. The blade is fitted with a plurality of individual heating elements, each element disposed proximal to the apex of the blade. Apex blade heating provides not only increased flexibility for the ... | 08/04/2009 |
| 7165287 | Windshield wiper system having a tubular member having a foam core This invention relates to windshield wiper system which utilizes a flexible drive arm for withstanding bending loads applied to a wiper. The drive arm may be made of a pull-molded composite material having a relatively low modulus of elasticity and a relatively high... | 01/23/2007 |
| 7070229 | Underhood electronic interior integration An electronic system generally includes a flatwire electronic site and a flatwire bus electronically connecting the flatwire electronic site to an electronic device in the engine compartment. The flatwire electronic site has a flexible substrate with electronic comp... | 07/04/2006 |
| 6813803 | Wiper strip for windshield wipers A wiper strip (18) for windshield wipers includes a profile spine (20) and a function part (22) that is connected to the profile spine (20) via a tilting bridge piece (26) and that bears against it in the tilted position. The funct... | 11/09/2004 |
| 6634053 | Apparatus for activating a heat conductive wire by detecting a rotating angle of a wiper arm The present invention relates to an apparatus for activating heat conductive wires by detecting a rotating angle of a wiper arm, wherein said heat conductive wires Installed on the both side of a wiper blade are activated when the detected rotating angle ... | 10/21/2003 |
| 6591443 | Heated windshield wiper A windshield wiper includes a plurality of electrical resistance heater elements. Some of the heater elements are located in the flexible wiper blade body and some of the heater elements are located in a wiper blade back element. The heater elements are s... | 07/15/2003 |
| 6507973 | Heated wiper system A heated wiper system is provided for mounting on a wiper arm of a windshield wiper assembly of a vehicle. A wiper blade selectively mounts on the free end of the wiper arm having a resilient wiper element arranged to slidably receive a heating element th... | 01/21/2003 |
| 6236019 | Heated windshield wiper assembly A heated windshield wiper assembly is provided which is attachable to the wiper blade carrier arm of a vehicle. The assembly has a wiper blade having an electrical heating element throughout its longitudinal length. The heating element is energized throug... | 05/22/2001 |
| 6140608 | Heated windshield wiper with removable heating element A windshield wiper assembly for connection to a windshield wiper retainer assembly of a vehicle comprises a housing having a pair of flexible side walls presenting wiping edges depending therefrom and adapted for contact with a windshield. A top wall of t... | 10/31/2000 |
| 6137084 | Heating element for heated windshield wiper A heated windshield wiper unit having an improved electrical heating element. The wiper may be constructed as a wiper blade constructed of silicon material for attachment to existing wiper blade frame supports that are already standard for automobiles and... | 10/24/2000 |
| 6100499 | Heated and lighted windshield wiper assembly An apparatus to be used by motor vehicle drivers under conditions such as freezing rain, sleet or snow to allow improved forward vision. Comprised of a conventional windshield wiper assembly having an electrically conductive arm and a first elongated cond... | 08/08/2000 |
| 6058554 | Heated windshield wiper blade A heated windshield wiper blade system which includes a gel filled core which extends the length of the windshield wiper blade and which gel filled core includes material which is both heat conducting and electrically conducting while a electrical conduct... | 05/09/2000 |
| 5832558 | Heated windshield wiper blade assembly A heated wiper blade assembly for vehicles comprises an electric resistance heating element molded within the conventional wiper blade. A normally closed timer or temperature sensor controls operation of the heating element. The heating element heats the ... | 11/10/1998 |
| 5831242 | Wiper heater insert A wiper heater insert includes a coiled heater wire, slip fit insulator, and an air gap between the heater insert and a longitudinal bore of the wiper. These three features minimize warping caused by thermal expansion and maximize the flexibility of the w... | 11/03/1998 |
| 5826293 | Heated wiper blade The present invention is a heated wiper blade comprising an elongated blade and a heating element connected to the electrical system of a vehicle. The heating element utilizes a material with a positive temperature coefficient of resistance placed between... | 10/27/1998 |
| 5787543 | Heated windshield wiper blade A windshield wiper blade having an internal conduit extending throughout the length of the wiper blade body through which an electric heating element is placed provides a means to address a wintertime problem of windshield wiper icing and freeze-up causin... | 08/04/1998 |
| 5784751 | Heat absorbing windshield wiper A heated windshield wiper for keeping wiper blades free from ice. In a first embodiment, a wiper blade includes a sealed cavity containing a heat-retaining fluid which aids in keeping the wiper blade free from ice. In a second embodiment, a wiper blade in... | 07/28/1998 |
| 5749118 | Heated wiper blade The present invention is a heated wiper blade comprising an elongated blade and a heating element connected to the electrical system of a vehicle. The heating element utilizes a material with a positive temperature coefficient of resistance placed between... | 05/12/1998 |
| 5649337 | Heated windshield wiper blade A heated windshield wiper blade including an elongated heated wiper blade having an arm portion pivotally secured to a central portion thereof. The arm portion has a distal end rotatably coupled with an automobile adjacent to a windshield thereof. A tempe... | 07/22/1997 |
| 5632058 | Heated wiper blade with a scraper and fluid release nozzle assembly A heated wiper blade with a scraper and fluid release nozzle assembly including a wiper arm member that couples to a wiper shaft of an associated vehicle. An elongated wiper blade with an interior heating element is provided. A blade holder member is pivo... | 05/27/1997 |
| 5572765 | Heated wiper blade and blade carrier employing single heating element This invention relates to a new and useful improvement in a wiper blade and blade carrier which is electrically heated for use on the windshields of vehicles, such as automobiles, trucks, trains, boats, airplanes and the like so as to prevent the accumula... | 11/12/1996 |
| 5558792 | Heated windshield wiper blade with electric heater core and outwardly extending arched branch members A heated windshield wiper blade construction includes the use of a pair of integrally attached electrical heating elements which are in parallel alignment and which extend substantially through the entire axial length of a flexible wiper blade. One of the... | 09/24/1996 |
| 5539951 | Wiper blade assembly including heating and fluid dispensing means This invention relates to a new and useful improvement in a wiper for use on the windshields of vehicles, such as automobiles, trucks, trains, boats, airplanes and the like, and more particularly to improvements in a windshield wiper which is electrically... | 07/30/1996 |
| 5504965 | Electrically heated wiper blade utilizing spiral coiled resister wire A heated windshield wiper blade unit suitable for incorporating into existing or new windshield wiper assembly. The blade comprises a spiral coiled heating element of resistance wire, such as Nichrome, disposed in the blade substantially along its entire ... | 04/09/1996 |
| 5488752 | Heat conducting apparatus for wiper blades A heat conducting apparatus for wiper blades including a wiper arm assembly and a wiper blade which can be removably attached to the wiper arm assembly by means of a mounting member operably interacting with a plurality of blade retaining members. Integra... | 02/06/1996 |
| 5426814 | Heated windshield wiper with fluid dispensing means A heated windshield wiper having a heating element for melting ice formations on both the wiper and an associated windshield. The wiper includes an elongated cylindrical body having a hollow interior and three wiping surfaces which project from the body a... | 06/27/1995 |
| 5325561 | Heated flexible windshield wiper A vehicle windshield wiper assembly with a thin elongate and very flexible heater wire disposed in and extending longitudinally throughout the body of a flexible wiper blade. To enhance removal of ice and snow preferably the blade retainer and linkage of ... | 07/05/1994 |
| 5221828 | Heated wiper blade using conductive elastomer A heated wiper blade has a conductive elastomer body and a pair of electrodes along each side of the body. The elastomer which has a resistivity in the range of 20-128 ohm-cm and a hardness of Shore A 64-70 comprises a rubber compound including carbon bla... | 06/22/1993 |
| 4945600 | Pane wiper apparatus The pane wiper apparatus for the windshield of a motor vehicle has a driven wiper implement in the form of a wiper strip which is moved over the height of the windshield. The strip is guided and driven by guide and drive elements arranged in side or edge ... | 08/07/1990 |
| 4928345 | Heated windshield wiper blade and holder An electrically heated windshield wiper blade and assembly is provided which includes an elongated resilient blade, a blade carrier comprising an elongated body member and a pair of pivotable blade holder end sections located on opposite ends of the body ... | 05/29/1990 |
| 4928344 | Electrically heated wiper blade utilizing fibrous carbon heating element A heated windshield wiper blade unit suitable for incorporation into existing windshield wiper assemblies. The unit comprises an elastic wiper blade, for example RTV rubber, and a flexible, fibrous carbon heating element disposed in the blade substantiall... | 05/29/1990 |
| 4497083 | Heated windshield wiper A heated windshield wiper has resistance wiring running along the length of the wiper arm, the blade carrier, and the wiper blade for heating the blade and carrier when connected into a vehicle electrical system. Wiring connections are provided between th... | 02/05/1985 |
| 4481881 | Hot melt screen printing machine In a known hot melt screen printing machine the printing ink is heated by an electrical current which is conducted through a stainless steel mesh of a screen plate. In the known machine, the printing accuracy is not good, mainly because of variation of te... | 11/13/1984 |
| 4360941 | Electrically heated windshield wiper assembly A windshield wiper assembly for preventing freezing of the wiper blades, and blade supporting frames, of a vehicle, during a sleet storm, the blade and frame being enclosed in a weather protective hood. A first pair of electric conductors are each affixed... | 11/30/1982 |
| 4325160 | Windshield wiper blade assembly A windshield wiper is provided which comprises a slotted metal backing or mounting strip and an extruded blade of rubber or rubber-like material formed with a main body mounting portion and a generally triangular wiping portion, the body portion having a ... | 04/20/1982 |
| 4192038 | Apparatus for cleaning and/or coating Apparatus for cleaning and/or coating generally smooth surfaces and the like comprising a generally elongated unitary movable member including a pair of spaced apart and generally parallel blade projections, each extending from and along one surface of th... | 03/11/1980 |
| 4065214 | Portable wax applicator and remover An apparatus for applying and removing wax from the running surface of a snow ski. The apparatus comprises a central housing, the upper portion of which comprises an open container for holding the wax. A removable lid with a resilient "O" ring seal select... | 12/27/1977 |
| 3948811 | Electrically conductive sheet composition An electrically conductive product generally comprised of a substrate or web coated with or impregnated with an electrically conductive thermally stable material which includes a special polymeric binder and conductive particles to produce the final condu... | 04/06/1976 |
| 3936901 | Wiper blade with embedded heating element A heated windshield wiper assembly having a heat resistant flexible blade element provided with an electrical heating arrangement disposed in a cavity of the blade element. The heating arrangement includes a resistance element encased in the blade element... | 02/10/1976 |