Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7676964 | Snow plow having wear minimizing apparatus A snow plow for attachment to a vehicle, the snow plow including a mounting apparatus having a mounting frame, the mounting frame including at least one mounting upright. The snow plow further including a plow blade including a retention apparatus constructed and ar... | 03/16/2010 |
| 7367408 | Scraping device and a system and a method for collecting materials A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mou... | 05/06/2008 |
| 7367407 | Towed snowplow and method of plowing A towed snowplow includes a frame which is carried by at least one wheel. The frame includes at least one moldboard and is arranged to be towed behind a vehicle and movable from a transport position directly behind the vehicle to a deployed position in which the fra... | 05/06/2008 |
| 7296368 | Roof snow removal apparatus An apparatus includes an elongated pole that has a longitudinal axis and further has axial proximal and distal ends. A central anchor includes brackets equidistantly and radially spaced about a perimeter thereof. The anchor threadably receives the proximal end. Coex... | 11/20/2007 |
| 7273111 | Grading implement A grading implement including main body having a left end, a right end and a length that extends between the left and right ends. The main body also includes a front side and a back side. A claw-blade is positioned at the front side of the main body. Side blades are... | 09/25/2007 |
| 7216403 | Ergonomic appliance handle The ergonomic appliance handle is an extension handle that is attachable to a carrying or transport handle on a canister style vacuum cleaner or similar floor appliance. The ergonomic appliance handle provides an elongated handle shaft that is attached to the canist... | 05/15/2007 |
| 7143531 | Plow protector In one aspect of the present invention, a plow protection device is disclosed. Such a device may, for example, protect a plow against substantial damage from impact with an obstruction such as a utility cover. In various embodiments of the present invention, the plo... | 12/05/2006 |
| 7134227 | Adjustable wing plow A plow assembly includes a pair of plow wings which are pivotally mounted at opposite ends of a center plow. Each of the plow wings may pivot between a forwardly angled position and an aligned position. The plow assembly may pivot a trailing plow wing in response to... | 11/14/2006 |
| 7117953 | Scraping device and a system and a method for collecting materials A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mou... | 10/10/2006 |
| 7111417 | Earth handling apparatus operable by an all terrain vehicle (ATV) An earth handling apparatus operable in a trailered manner behind an ATV includes a rolling framework containing a tiltable accumulating bowl having a pivotable front door. Winch devices operated by the electrical system of the ATV control the tilting of the framewo... | 09/26/2006 |
| 7101274 | Method and circuit for inserting a picture into a video picture The present invention is directed to a power finishing tool having a variable position handle. In aspects of the present invention, a power finishing tool includes a motor housing for containing a motor configured to drive a working element. A variable position hand... | 09/05/2006 |
| 7096971 | Bi-directional drag grader A bi-directional drag grader comprising a rigid overhead support, attachable to a self propelled machine using a common receiver hitch or directly attached, a substantially rectangular rigid and collapsible frame, the frame having a leading edge and trailing edge wi... | 08/29/2006 |
| 7088045 | Tailgate controlled light system A tailgate controlled light system for automatically illuminating the interior of a pickup box upon opening of a tailgate. The tailgate controlled light system includes a light unit attachable within a pickup box, a control switch electrically connected to the light... | 08/08/2006 |
| 6974134 | Folding handle assembly for a vehicle A handle assembly that pivotally mounts a handle adjacent to an opening of a vehicle includes a bracket and an end portion or cap portion of a handle. The end portion and bracket engage one another to substantially secure the handle in either an in use position or a... | 12/13/2005 |
| 6955229 | Implement pitch-yaw system An implement pitch-yaw system for effectively and efficiently controlling the pitch of an implement. The implement pitch-yaw system includes a first yaw actuator and a second yaw actuator attached between an implement structure pivotally attached to a support struct... | 10/18/2005 |
| 6948267 | Device for optimization of the thickness of an ice layer An ice resurfacing machine laser control is used to optimize the ice layer on an artificial ice track, such as an ice hockey rink and is adapted for use in ice resurfacing machines. The thickness of an ice layer is optimized with a beam for a laser transmitter. The ... | 09/27/2005 |
| 6927540 | Tailgate controlled light system A tailgate controlled light system for automatically illuminating the interior of a pickup box upon opening of a tailgate. The tailgate controlled light system includes a light unit attachable within a pickup box, a control switch electrically connected to the light... | 08/09/2005 |
| 6874260 | Plow system for a vehicle The invention comprises a snow plow system capable of attachment to a vehicle. The snow plow system comprises a front snow plow assembly and a rear snow plow assembly. The front snow plow assembly includes a blade, a frame assembly and an attachment system. The atta... | 04/05/2005 |
| 6453582 | Hitch mounted snowplow and method of using same A snowplow apparatus as adapted to attach to a vehicle having a ball hitch assembly. The snowplow apparatus has a blade assembly connected to an elongated drawbar. A frictionally activated elevating mechanism is operatively connected to the drawbar and mo... | 09/24/2002 |
| 6408548 | Pivotal rear-mounted snowplow A pivotal snowplow is provided for mounting to the hitch on the rear end of a vehicle, such as a pickup truck. The snowplow includes a frame and a blade. The frame includes a tongue for mating receipt in the vehicle hitch socket. The frame also includes r... | 06/25/2002 |
| 6336281 | Hitch mounted snowplow and method of using same A snowplow apparatus as adapted to attach to a vehicle having a ball hitch assembly. The snowplow apparatus has a blade assembly connected to an elongated drawbar. A frictionally activated elevating mechanism is operatively connected to the drawbar and mo... | 01/08/2002 |
| 6293351 | Rear mounted three point hitch adapter for motor vehicles A motor vehicle trailer hitch adapter that mates with a motor vehicle trailer hitch receptacle and provides attachment of standard agricultural category one three point hitch implements such as scraper blades, landscaping rakes or box blades. The adapter ... | 09/25/2001 |
| 6151809 | Rear mounted snowplow The snowplow of the present invention is adapted to mount to the bed of a pickup truck. The snowplow includes a mounting base and a frame which is rotatably coupled to the base. The snowplow blade is coupled to the frame so that it moves with the frame. B... | 11/28/2000 |
| 6092315 | Snow removal apparatus A snow removal apparatus generally comprises a wheeled head frame coupled to a handle and further having a slide suspended between the wheeled head frame and the handle is herein disclosed. The head frame of the snow removal apparatus comprises a substant... | 07/25/2000 |
| 6070343 | Trailer-type floating snow plow An adjustable grading device attaching to a vehicle rear towing hitch having a grading blade for grading or snow removal and integrated wheels for transport.... | 06/06/2000 |
| 5930922 | Vehicle mounted snowplow The snowplow of the present invention is adapted to mount to the bed of a pickup truck. The snowplow includes a mounting base and a frame which is rotatably coupled to the base. The snowplow blade is coupled to the frame so that it moves with the frame. B... | 08/03/1999 |
| 5680715 | Machine for packing snow or the like along a trail The machine incorporates a front and a rear motorized units operatively connected together, and in which power is transmitted from one unit to the other so that they are both serf-propelled. A snow levelling device is disposed between the two motorized un... | 10/28/1997 |
| 5595007 | Trailer-type snowplow The invention is a trailer-type snowplow assembly. The assembly includes one pivot mechanism that allows the plow blade to be raised or lowered. The assembly further includes a free pivot assembly that allows the blade to freely pivot in a transverse dire... | 01/21/1997 |
| 5570524 | Snow removal apparatus having a chute to dispose of snow A snow removal system for roofs and vehicles. The first embodiment has a frame with thin, high sidewalls and a thin flat base, a cross brace and a curved handle. A long sheet of plastic tarp is attached to the base to direct blocks of cut snow down to the... | 11/05/1996 |
| 5411102 | Grader blade attachment for small tractors A grader blade unit is provided for ready attachment to small tractors in place of an underslung mower deck. A grader blade is attached to a turntable for pivotable adjustment to selected angular settings. An extensible draw bar affixed to the turntable h... | 05/02/1995 |
| 5392538 | Extendable drag plow The extendable drag plow provided by this invention has a laterally-fixed center section, and moveable outer sections positioned by a controllable actuator system. The moveable plow sections are equipped with followers engaging oppositely-extending pairs ... | 02/28/1995 |
| 5265355 | Rear-mounted snow plow apparatus An improved universal adjustable snow plow apparatus that is connectable to a vehicular rear for plowing snow and the like. The plow apparatus employs a plow blade with a pair of vertically oriented plate supports; a stabilizing and supporting subassembly... | 11/30/1993 |
| 5209307 | Rear mounted grader for vehicles A rear mounted grader for vehicles comprises a plate member adapted to be vertically secured to the vehicle frame behind the wheels. A pair of rearwardly extending arms are pivotally mounted on the plate member and are provided with a sliding member secur... | 05/11/1993 |
| 5083388 | Snow removal apparatus A snow removal apparatus that can be used to remove snow from a pitched roof while the operator is on the ground or also when the operator is on the roof. The apparatus includes two vertical snow-cutting blades, a horizontal cutting blade, and a roller as... | 01/28/1992 |
| 5072530 | Device for preparing the landing piste of a ski-jump Device for preparing the landing plate of a ski-jump, guide and deflection rollers being arranged, provided with clearance, in the vicinity of the take-off platform of the ski-jump, which rollers receive a cable, the ends of which, arranged along the land... | 12/17/1991 |
| 5058295 | Rear-mounted scraper The rear-mounted scraper of this invention is adapted for attachment to the rear of a vehicle which has a rear bumper, bottom and a rear axle. The rear-mounted scraper has a hitch with portions adapted for attachment to the bottom of the vehicle and porti... | 10/22/1991 |
| 5050322 | Snowplow apparatus Snowplow apparatus is provided having a blade assembly and elongated tongue secured at one end to the blade assembly and having a connector device at the other end for detachably securing of the tongue to a single-point hitch assembly of an automotive veh... | 09/24/1991 |
| 5046271 | Powered snow plow for attachment to rear of vehicle A vehicle rear mounted snow plow apparatus for plowing within a foot of a permanent structure, including a vehicle supported snow plow actuating mechanism for raising and lowering the snow plow, and linkage for tilting the snow plow to remove snow or to p... | 09/10/1991 |
| 4907357 | Snow plow assembly adapted for mounting on a vehicle and method of using the same A snow plow assembly adapted for mounting on a vehicle. The snowplow assembly includes a conventional blade mounted on the front of the vehicle and powered with conventional hydraulic systems. The snow plow assembly also includes a blade mounted on the re... | 03/13/1990 |
| 4802293 | Adjustable earth-moving attachment for a vehicle An earth-moving attachment for use with a vehicle includes a pair of earth-moving blade assemblies mounted on a main beam. The earth-moving blade assemblies are adapted to be independently movable in several planes with respect to each other and with resp... | 02/07/1989 |
