Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7165345 | Automated control mechanism for a snow blower discharge chute The automation mechanism has of three rubber discs, two of which are connected to two swiveling brackets. The brackets are directed by two cables and two cable levers, each one connected to each handlebar. The swivelling brackets consist of two rubber discs that mak... | 01/23/2007 |
| 7150062 | Combined single-twin street sweeping machine A surface cleaning vehicle is provided with hydraulically driven sweeping machinery. The vehicle comprises a truck chassis for carrying the sweeping machinery and a prime mover engine for propelling the vehicle. A second engine is connected to said chassis, and firs... | 12/19/2006 |
| 6810609 | Snow groomer having an improved variable geometry tiller assembly A snow tiller (10) suitable for grooming ski hills, trails, or other areas, provides an adjustable profile tiller assembly. The snow tiller (10) is preferably pulled by a tracked vehicle (12) and has a tiller assembly formed of a plurality of ti... | 11/02/2004 |
| 6756750 | Electric vehicle An electric vehicle driven by a pair of left and right electric motors is provided. The vehicle includes a controller for controlling the start of the vehicle. The controller performs such control as avoiding brake drag caused by the operation of the electric motors... | 06/29/2004 |
| 6637134 | Snow track preparation machine with mill mounted in a revolving manner Snow track preparation machine with mill installed in a revolving manner and including a pump driven by a power source, a hydraulic motor connected to the pump on the delivery side and the return side, an actuator supported on the assembly frame and reali... | 10/28/2003 |
| 5398431 | Single stage snowthrower impeller A snowthrower (20) including an improved impeller (50) which has an "open center" configuration and which is substantially made from a single piece of plastic. Impeller (50) includes a pair of curved blades (60) which are supported, braced and stiffened b... | 03/21/1995 |
| 5077920 | Power broom assembly A power broom assembly includes a vehicle, a rotatable broom mounted to the front of the vehicle, and an airblast assembly mounted to the front of the vehicle above the broom to suck up an overspray of material which has been swept up by the broom. An air... | 01/07/1992 |
| 4480397 | Snowblower truck assembly and lateral swivelling snowblower equipment therefor This snowblower equipment includes a snowblower unit arranged to be readily and removably attached to the rear frame of a truck, and a truck so equipped, such that the rear frame or platform of the truck remains free for conventional trucking, either with... | 11/06/1984 |
