LEONARDI MANUFACTURING CO. INC. Patent applications |
Patent application number | Title | Published |
20160135388 | Various Improvements to Stump Cutting Tool Discs and Elements Thereof - The present invention relates to grinding tools and, more particularly, to outdoor grinding tools, and also more particularly to rotating disc assemblies (including a disc, bit subassembly, and cutting bit shield/guard assembly). The rotating disc assembly can be used for grinding tree stumps, among other things. | 05-19-2016 |
20140332614 | Various Improvements to Stump Cutting Tool Discs - The present invention is generally directed to a bit assembly that includes, but is not limited to: a bit securing sub-assembly including a bit holder member that defines a recess having a first portion extending in a first direction, and a second portion extending from the first portion along a second direction that is not parallel to the first direction; a bit mechanically connected to the bit holder member and positioned within the recess by a fastening hardware that extends through co-axially aligned holes formed in the bit holder member and the bit; and a bit shielding sub-assembly comprising a bit shielding member mechanically connected to and extending from the second portion of the bit holder in a third direction that is substantially parallel to and spaced from the first direction; wherein the bit shielding member is structured, positioned, and/or located to at least partially shield the bit in the first direction. | 11-13-2014 |
20140196819 | Tooth Assembly and Cutting Bits For Stump Grinder - A stump grinding wheel tooth assembly having a mounting block positioned around the periphery of the wheel and a cutting bit attached to the mounting block by a pin passing through a hole in the cutting bit and a corresponding hole in the mounting block and capped by a nut. The mounting block may support multiple cutting bits arranged into a predetermined patterns based on the location of the holes, such as pairs of cutting bits or even a quad formation. The cutting bits may be provided in various geometric configurations, such as round, triangular, square, rectangular, pentagonal, hexagonal, octagonal or decagonal. | 07-17-2014 |
20130180625 | STUMP CUTTING TOOTH ASSEMBLY - A stump cutting assembly mounted to a stump cutting wheel. Stump cutting assembly is a stump cutting tooth interconnected to the wheel by a holder or block that is fixed to wheel by welding or other equivalent process, an optional debris deflector and a fastener that interconnects tooth and deflector to holder. As wheel rotates about its axis of rotation, the tooth cuts away at wood or other debris in which it comes into contact through the side to side and/or longitudinal movement of a stump grinder unit. | 07-18-2013 |
20120024425 | Stump Grinding Tooth Assembly - A stump cutting assembly mounted to a stump cutting wheel. Stump cutting assembly is a stump cutting tooth interconnected to the wheel by a holder or block that is fixed to wheel by welding or other equivalent process, an optional debris deflector and a fastener that interconnects tooth and deflector to holder. As wheel rotates about its axis of rotation, the tooth cuts away at wood or other debris in which it comes into contact through the side to side and/or longitudinal movement of a stump grinder unit. | 02-02-2012 |
20100326032 | Electrically-Powered Combination Lawn Mower, Trimmer and Edger - An electrically powered two wheel mowing, trimming and edging apparatus is disclosed. A rotating cutting head is cantilevered in front of the wheels, with a battery positioned behind the wheels to act as a counterweight to the cutting head. A caster below the battery allows easy maneuverability and permits trimming in corners. The cutting head contains both metal cutting blades and filament line, and the operator selects which cutting tool he wants based on the type of foliage to be cut. The cutting head easily rotates from the horizontal to the vertical, allowing the apparatus to be used as an edge trimmer. | 12-30-2010 |
20100218851 | Various Improvements to Stump Cutting Tool Discs - The present invention is generally directed to a grinder tool preferably having one or more of the following aspects or features: (i) some, preferably most, of the footprint of its bit being shielded by the disc; (ii) the peripheral edge of the disc is at least partially covered by a rock stop hard surface layer; (iii) non-rigid mounting hardware structured to provide a non-rigid mechanical connection between the well and the bit sub-assembly (for example, the non-rigid mounting hardware may include: a rubber isolator; a mesh isolator; and/or a fluid filled isolator); (iv) a stump grinding tool rotating disc assembly having at least one first type bit sub-assembly (including a bit) and at least one second type bit sub-assembly (including a bit), where: (a) the first type bit sub-assembly has a first bit footprint geometry, (b) the first type bit sub-assembly has a first bit footprint geometry, and (c) the first bit footprint geometry is different than the second bit footprint geometry; (v) a rotating disc assembly includes a disc that includes multiple guide protrusions extending axially from both axial ends of the disc around an angular range leading the angular position of each bit sub-assembly; (vi) a rotating disc assembly having rollers built into the peripheral edge of the disc; and/or (vii) disc assembly with a bit holder member that extends over a portion of the opposite axial faces of the disc. | 09-02-2010 |
20100043922 | Tooth Assembly and Cutting Bits For Stump Grinder - A stump grinding wheel tooth assembly having a mounting block positioned around the periphery of the wheel and a cutting bit attached to the mounting block by a pin passing through a hole in the cutting bit and a corresponding hole in the mounting block and capped by a nut. The mounting block may support multiple cutting bits arranged into a predetermined patterns based on the location of the holes, such as pairs of cutting bits or even a quad formation. The cutting bits may be provided in various geometric configurations, such as round, triangular, square, rectangular, pentagonal, hexagonal, octagonal or decagonal. | 02-25-2010 |