Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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 |
| 7174968 | Hydraulic excavator The present invention provides a hydraulic excavator provided with a dozer device comprising an arm having a rear end connected to a fulcrum portion provided on a lower frame of a lower traveling body, a dozer blade provided at an extreme end of the arm, and a dozer... | 02/13/2007 |
| 6672401 | Towable box grader with electronically controlled continuously variable multi-axis blade system A towable scraper system for contour surface grading. The system includes a rigid chassis member that has a coupler configured for attachment to a conventional three-point tractor hitch. A scraper blade is pivotally suspended from the rigid chassis member... | 01/06/2004 |
| 6497059 | Energy conservation system for earth-moving loading machines An energy conservation system for an earth-moving loading machine is comprised of one or more pressurized gaseous pistons that extend from the front of the frame of a loading machine to the boom assembly. Although this piston does not provide sufficient f... | 12/24/2002 |
| 5697731 | Apparatus and method for blending and windrowing asphalt An apparatus and method for blending and windrowing hot plant mix asphalt which has been deposited onto a roadway in preparation for paving the roadway comprises a V-shaped plow formed by a first plowing member extending in a first direction, and a second... | 12/16/1997 |
| 5435082 | Snow plow stabilizer device An apparatus, for stabilizing a plowing implement mounted on a motor vehicle, comprising a rigid stabilizer member having first and second opposed ends. One end of the stabilizer member supports an attachment device for attaching the stabilizer member to ... | 07/25/1995 |
| 5277258 | Single lever bulldozer blade control apparatus A single lever blade control apparatus for bulldozers that is capable of operating in three mutually perpendicular planes to activate three independent hydraulic valves controlling a bulldozer blade: up/down, tilt and angle. Movement of the bulldozer blad... | 01/11/1994 |
| 5232057 | Single lever multiple function control mechanism A control mechanism for actuating multiple valve spools with a single control lever includes a frame member to which a valve assembly having multiple valve spools is assembled. A fixed shaft is mounted in a spaced parallel relationship to said valve spool... | 08/03/1993 |
| 4690030 | Mine field clearing apparatus Mine clearing apparatus for attachment to a vehicle and comprising a frame mountable onto a vehicle for selectable positioning in a raised or lowered orientation; apparatus mounted onto the frame for raising and shunting aside mines; and apparatus operabl... | 09/01/1987 |
| 4491053 | Mine field clearing apparatus mountable on a vehicle Apparatus for clearing mines comprising a frame mountable onto a vehicle for selectable positioning in a raised or lowered orientation, plow apparatus for raising and shunting aside mines mounted onto the frame and apparatus for automatically raising the ... | 01/01/1985 |
| 4467694 | Mine field clearing apparatus Mine clearing apparatus for attachment to a vehicle comprising a frame mountable onto a vehicle for selectable positioning in a raised or lowered orientation; apparatus for raising and shunting aside mines mounted onto the frame; and apparatus for selecta... | 08/28/1984 |
| 4307992 | Load handling vehicle with a bucket side tilt mechanism A load handling vehicle includes a bucket side tilt mechanism with a supporting H-framework comprised of first and second side frame members and a cross-frame member. The side frame members are each coupled at a first end to the body of the vehicle and at... | 12/29/1981 |
| 4304057 | Snow plow assembly including linear actuator The present invention includes a snow plow assembly adapted to be carried by a vehicle and including a snow plow mounting frame adapted to be fixedly secured to the vehicle frame, a plow blade, means for supporting the plow blade for vertical movement and... | 12/08/1981 |
