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 |
| 7180665 | Display device having an extendible screen A display device (1) has an extendible screen (2) and at least one extendible side member (3). The extendible screen (2) is extendible in an extension direction from a relatively compact form to an extended form. The screen (2) in ... | 02/20/2007 |
| 7007735 | Removable and adjustable screen A removable device has a screen, two stiles and two rails, connected by elbows. The rectangular screen admits light and air. The two stiles stand mutually parallel, rigid, and perpendicular to the horizon upon installation of the device in an opening. The two rails ... | 03/07/2006 |
| 6959748 | Apparatus for covering an opening in a building A storm protector (20) to be attachable over a window (21) or other opening of a building (22) includes a header (26), a bottom sill (25) and side frames (23, 24) extending between the ends of the header (26) and the ... | 11/01/2005 |
| 6056038 | Retractable barrier A safety barrier comprising a support, a partition frame hingedly connected to the support, and a retractable membrane attached to one end of the partition frame. The partition frame and the support can be extended across an opening, such as a doorway, to... | 05/02/2000 |
| 5437134 | Collapsible security grille A collapsible security grille is provided comprising two conventional face-to-face sets of rigid grille bars (2, 9) pivotally interconnected at their intersections, wherein all the pivotal connectors (4) are uniformly and non-adjustably spaced apart along... | 08/01/1995 |
| 5338089 | Windscreen for a convertible automobile The application relates to a convertible automobile with a windscreen which is arranged behind a row of seats and which extends vertically upwards and beyond the top of the seats and which extends for the entire interior width of the vehicle. In order to ... | 08/16/1994 |
| 5312467 | Air filter assembly A window air filtering assembly for repulsive filtering of pollen, dirt and small particulate matter. The air filtering assembly includes a frame assembly and a filtering medium disposed in the frame assembly. The filtering medium is formed from woven, sm... | 05/17/1994 |
| 4614997 | Lamp fixing and mounting device The device is of the type comprising a lamp-supporting ring (10) having an opening for receiving the base of a lamp, and a clip (30) in the form of a loop of wire which is pivotally mounted to one side of the said opening to pivot between an open position... | 09/30/1986 |
| 4005547 | Thermally responsive ventilated cold frame A cold frame for providing an environment conducive to the growing of plants having walls and a flexible, light-transmitting cover member which is flexed to form a ventilation opening. The cover member is flexed manually or by means responsive to the temp... | 02/01/1977 |
