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 |
| 7934524 | Log splitter system for a front-loader tractor A tractor has a log splitter installed on two loader arms pivoted at a front end of the tractor. The log splitter includes a frame for attachment to the loader arms. The frame includes a surface, to which a ram and a wedge are coupled. An actuator mounted to the fra... | 05/03/2011 |
| 7198081 | Log splitter A portably log splitter is provided. The log splitter comprises a base having a pair of one-piece side members, and a support member to which the one-piece side members are attached. The support member and the one-piece side members form a seat that is adapted to re... | 04/03/2007 |
| 7188646 | Kit to form a wood splitting apparatus A splitting wedge is provided for splitting wood. The wedge includes an upwardly facing impact surface, a collar adapted to slidably engage a vertical guide track and a downwardly facing cutting edge. The wedge is adapted to slide down the guide track and cut into a... | 03/13/2007 |
| 7159627 | Manual log splitting device A manual log splitting device for splitting a log has a first assembly including a base plate for resting of the log and a first upright extending upwardly from the base plate. A second assembly having an upright sleeve, impact plate, and wedge assembly, is axially ... | 01/09/2007 |
| 7124794 | Bi-directional equal force log splitter A bi-directional log splitter having at least two stationary splitting wedges and a moveable ram therebetween for splitting wood, said splitter being mounted on a trailer where the splitter exerts a substantially equal force for both the exertion and the retraction ... | 10/24/2006 |
| 7108029 | Wood splitter with multiple wood splitting wedges on a rotating member A woodsplitting machine has a plurality of wedges of various sizes and configurations radially attached to a rotational member mounted on the frame behind the log cradle such that an operator can quickly and easily rotate the appropriate wedge into position dependin... | 09/19/2006 |
| 7104295 | Two-stage two-stroke log splitting system A log splitting system comprises a splitter box, having top, bottom and sidewalls, and open entrance and discharge ends. A first set of cutting blades secured adjacent to the entrance end divides the entrance end into at least two, first sections. A second set of cu... | 09/12/2006 |
| 7104296 | TSS16 EZ clean swinging bypass splitter box A log splitting system comprises a splitter box, having entrance and discharge sections, each with top, bottom and sidewalls, and open entrance and discharge ends. A first set of cutting blades in the entrance section divides that section into at least two, first se... | 09/12/2006 |
| 7066223 | Log splitting apparatus A hydraulic log splitter attachment for a skid steer loader includes a mounting framework attached to a vertical elongate beam. A piston/cylinder combination with a rod for movement between retracted and downwardly extended configurations mounts to the beam. A wedge... | 06/27/2006 |
| 7040362 | Log splitter A log splitter comprising: a base; a lever having one end portion hingably attached to the base; a wedge slidably attached to a hinged end portion of the lever, to slidably reciprocate along the lever when the lever is swung; a log support for a cut log; and, an upp... | 05/09/2006 |
| 6991010 | Log splitting head for bundlewood production A splitting head for a log splitting apparatus includes abutting primary and secondary splitting assemblies, each having a circular securing ring that holds wedge members having cutting edges directed toward the log. The cutting edges of the secondary assembly split... | 01/31/2006 |
| 6609545 | Wood cutting head structure A cutting head structure for a wood splitter utilizing a frame member. The frame member includes a bottom, a pair of sides, and a top to form an open chamber. The open chamber has a first opening for receiving a wood mass and a second opening to receive t... | 08/26/2003 |
| 6546976 | Computer designed ergonomic upright wood splitter systems and methods A wood splitter comprising a support structure, a table assembly, a ram assembly, and wedge member, and a control means. The support structure supports the table assembly. The control system energizes the ram assembly to force the wedge towards the table ... | 04/15/2003 |
| 6533004 | Wood-splitting tool A wood-splitting impact tool with an enhanced wood-splitting function by virtue of its improved penetration and its reduced recoil. Improving the penetration of the wedge is achieved by fabricating the wedge of aluminum, titanium, graphite composite or al... | 03/18/2003 |
| 6390162 | Log splitter A log splitter is disclosed as employing a fluid driven hammer adapted to impart successive log splitting movements to a log splitting element, a manually operable parallelogram linkage for supporting the hammer for vertical movement relative to an upper ... | 05/21/2002 |
| 6135178 | Wood splitting device A device for splitting wood comprises a rotatable and movable cutting device. A splitting blade is positioned on one end of the cutting device which acts to split the wood when the cutting device is advanced in a direction towards the wood. The cutting de... | 10/24/2000 |
| 6112784 | Rail buster Provided herein is a device useful for splitting logs into rail sections useful in making fences. The device includes a longitudinal cutting means which permits the entire log placed into the device to be cleaved along its length dimension in one operatio... | 09/05/2000 |
| 6092572 | Log splitter with manually operated hydraulic jack A compact, lightweight, easily operated log splitter having a conventional manually operated hydraulic jack mounted on a base in an adjustable-length frame having four legs extending between the base and a plate supporting a splitting wedge at the opposit... | 07/25/2000 |
| 5957175 | Adjustable log splitting head An adjustable multi-wedge splitting head for a log splitting apparatus includes a vertically oriented stationary post securing a slideably positionable first multiple splitting wedge assembly, and a vertically oriented stationary splitting wedge mounted f... | 09/28/1999 |
| 5803141 | Combination wood splitter and loader Apparatus mountable to a support vehicle for splitting and loading firewood the apparatus which includes: a. a rigid connecting member, the connecting member having a proximal component and a distal component, the proximal component mountable to the suppo... | 09/08/1998 |
| 5791389 | Apparatus and method for forming firewood logs Apparatus and method for processing relatively large tree logs into relatively small firewood logs using two spaced apart cutting stations, a central conveyor, a transfer station and a splitter station wherein relatively large tree logs are placed sequent... | 08/11/1998 |
| 5711357 | Adjustable log splitting head An adjustable multi-wedge splitting head for a log splitting apparatus equipped with a ram for axially advancing pre-cut logs toward the splitting head in a horizontal direction includes a vertically oriented stationary post and a stationary triangular sp... | 01/27/1998 |
| 5535795 | Log splitting attachment for a hand jack The present invention provides a log splitting attachment for use with a hand jack particularly of the type for use splitting precut logs. The log splitting attachment is used with a manually operated jack, is easily transported from place to place, and i... | 07/16/1996 |
| 5375638 | Log splitter An improved hydraulic log splitter which includes a hydraulic reservoir formed integrally with a frame of the log splitter. Hydraulic fluid from the reservoir is supplied by a pump to a control valve. A fluid passage is open through the control valve to a... | 12/27/1994 |
| 5337810 | Modified wood splitter The instant device is a modified wood splitter featuring a hydraulically controlled log elevator, a log splitting piston stroke control rod, an adjustable four-way splitting wedge and a generator mounting apparatus all of which said features have been add... | 08/16/1994 |
| 5255726 | Substantially uncurved and unwaved plywood produced by using veneers with unstraight fibers and method for producing such a plywood A substantially uncurved and unwaved plywood includes at least one pair of veneers located symmetrically with respect to a middle of a thickness of the plywood and having unstraight grains which coincide with each other. A method for producing a substantially ... | 10/26/1993 |
| 5022445 | Log splitter and exit conveyor A double-acting hydraulic ram drives a log section or block through a blade assembly to split the log section into several smaller pieces. The blade assembly is configured to minimize the force required to split the log section into several pieces without... | 06/11/1991 |
| 4961452 | Log splitting apparatus A log splitting apparatus is provided with a sensing mechanism arranged with adjustment linkages to vary the position of a cutter blade in accordance with the sensed diameter of a given log to-be-split. A sensing wheel is arranged to ride on the side of t... | 10/09/1990 |
| 4875514 | Wood splitting method and apparatus A method and an apparatus for performing said method wherein a log of wood is split by being forced through a generally conical shaped apparatus containing a multiplicity of uniquely shaped, spaced, interconnected, and cooperatively operative knives or sp... | 10/24/1989 |
| 4860806 | Woodsplitting head assembly The assembly comprises a plurality of blades that can be positioned by sliding the blades over the vertical head of the splitter. The vertical head has a series of support ribs that will allow positioning the blades a various heights on the head and have ... | 08/29/1989 |
| 4830070 | Firewood processor A wood processor is disclosed for cutting a log into a series of shorter lengths and subsequently splitting the shorter lengths into individual pieces of firewood or the like. The processor includes a carriage for receiving the log. Clamps engage the log ... | 05/16/1989 |
| 4830071 | Wood processing machine A wood stump splitting apparatus includes a splitting chamber for receiving a plurality of various sized wood stumps. The splitting chamber has one wall including a splitter grid. Press is provided for pressing the wood stumps against cutting edges of the... | 05/16/1989 |
| 4805676 | Automatic whole and multiple tree firewood/hog fuel processor An adjustable infeed ramp supports the input end of a main frame at a height to tilt the main frame to correspond to the inclination of a log in process. Pulled into the machine by a winch line, the leading end of the log is gripped by vertical feed rolls... | 02/21/1989 |
| 4800937 | Log splitting apparatus A log splitting apparatus comprising a frame, a main splitting head and a ram means mounted on the frame. The main splitting head includes; a vertically disposed wedge including a beveled leading splitting edge beveled along an angle sloping toward one ve... | 01/31/1989 |
| 4782866 | Log splitting head A log splitting head is disclosed which includes a downwardly-sloped top portion having a sharpened leading edge in the form of a V-shaped cutting blade. Beneath the top portion, a first row of vertical cutting blades is provided, each including a sharpen... | 11/08/1988 |
| 4679607 | Log splitter A mechanical log splitter in which relative motion is imparted between a cleaving blade and a log longitudinal the axis thereof and the log is split by the cleaving blade being forced thereinto. All moving parts of the log splitter disclosed, except for a... | 07/14/1987 |
| 4596279 | Log splitting apparatus Apparatus for splitting a firewood log into several pieces of firewood comprising a longitudinally extended chamber adapted to receive and hold a firewood log with its grain being oriented longitudinally therein and with the chamber having an open end thr... | 06/24/1986 |
| 4589457 | Log splitter wedge construction A wedge structure for log splitters is disclosed which provides a relatively thin, elongated knife at the forward end. Extending back from the knife is a first spreader providing side walls which diverge at a substantial angle. Extending rearwardly from t... | 05/20/1986 |
| 4522240 | Splitting wedge for log splitter The invention is directed to a wedge for splitting wood. The wedge has a thin cutting member which has a first end and a second end. The fist end defines a sharp edge. The cutting member is disposed where the first end first engages the wood to be split. ... | 06/11/1985 |
| 4515194 | Log splitter having serviceable wedge assembly A log splitting apparatus having an elongated frame, a selectively actuatable log moving ram mounted at one end of the frame, and a log splitting wedge assembly mounted at the opposite end of the frame. The wedge assembly includes a plurality of wedge tip... | 05/07/1985 |
