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.
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| Application No. | Application Title | Issue Date |
| 20110163586 | PORTABLE FOLDING CHAIR A swivel chair including a swivel-mounting assembly having a lower plate, and an upper plate, and bearings for rotatably mounting the upper plate to the lower plate. The lower plate and the upper plate defining an annular gap therebetween cooperating with the interior o... | 07/07/2011 |
| 20110012411 | ROTARY MECHANISM OF ROTARY SEATS A rotary mechanism includes an upper seat pan, a lower seat pan and an arc slideway mechanism. The upper and lower seat pans are connected at their sides and can rotate relative to each other. A middle inner slide rail of the arc slideway mechanism, which has a long thr... | 01/20/2011 |
| 20100264711 | SWIVEL AND RECLINING CHAIR A swivel and reclining chair has a base support, a base bowl mounted on the base support, and a seating bowl slidably disposed in and over the base bowl. A plurality of friction reduction features are disposed on the inside surface of the base bowl. The outer surface of... | 10/21/2010 |
| 20090174246 | SWIVEL SEATING SYSTEM A seat assembly for a vehicle includes a seat bottom and a mounting assembly having a first portion that attaches the seat bottom to the vehicle and a second portion. The second portion permits rotation of the seat bottom relative to the first portion and the vehicle an... | 07/09/2009 |
| 20090140564 | SWIVEL CHAIR A swivel chair includes a seat unit and a base unit. The seat unit includes a downwardly extending post. The base unit includes: a base member; a sleeve member that extends upwardly from the base member, that surrounds the post of the seat unit, and that has a top end p... | 06/04/2009 |
