# US 5,702,161 A · Machine for removal of materials from a surface > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,702,161 A - Document ID: US5702161A - Status: Granted - Kind: A - Application number: 08/570,725 - Filed: 1995-12-11 - Granted: 1997-12-30 - Earliest claimed: 1995-12-11 - Inventors: Randal D. Finney; Robert D. Adamson - Web page: https://patentgrep.com/patent/US5702161A ## CPC - B29C 63/0013: {Removing old coatings} - E01C 23/082: using non-powered tools - E04G 23/006: {Arrangements for removing of previously fixed floor coverings} - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H) - E04G: SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS ## Abstract A machine for removing a material mounted to an underlying surface from the underlying surface is disclosed. The machine includes a frame body, an assembly for propelling the frame body relative to the surface, a plate carried by the frame body and a blade assembly pivotally coupled to the plate. The plate is movable relative to the frame body between a deployed position for removal of the material from the surface and a stored position with the plate positioned for unrestricted movement of the frame body relative to the surface. The blade assembly includes a removal blade for removing the material from the surface. The blade assembly is movable between a plurality of positions with the blade oriented at an angle relative to the plate, and is secured in a selected one of the plurality of positions during removal of the material from the surface. The machine also includes at least one blade actuator for moving the blade assembly relative to the plate and at least one plate actuator for moving the plate relative to the frame body. ## Claims ### Claim 1 A machine for removing a material mounted to an underlying surface from said underlying surface, said machine comprising: a frame body; means for propelling said frame body relative to said surface; a plate carried by said frame body, said plate being movable relative to said frame body between a deployed position for removal of said material from said surface and a stored position with said plate positioned for unrestricted movement of said frame body relative to said surface; a blade assembly pivotally coupled to said plate, said blade assembly including a removal blade for removing said material from said surface, said blade assembly being movable between a plurality of positions with said blade oriented at an angle relative to said plate; said blade assembly being secured in a selected one of said plurality of positions during removal of said material from said surface, at least one plate actuator mounted to said frame body and said plate for moving said plate between said deployed position and said stored position; and at least one blade actuator mounted to said frame body and said blade assembly for manipulating said blade assembly relative to said plate and securing said blade assembly in a selected one of a plurality of positions relative to said plate. ### Claim 2 (depends on 1) The machine of claim 1 in which said blade actuator is a hydraulic actuator. ### Claim 3 (depends on 1) The machine of claim 1 in which said blade actuator includes at least one cylinder carried by one of said frame body and said blade assembly and at least one ram coupling said cylinder to the other of said frame body and said blade assembly. ### Claim 4 (depends on 3) The machine of claim 3 in which the longitudinal axes of said ram and said cylinder are substantially parallel to said blade. ### Claim 5 (depends on 1) The machine of claim 1, and further comprising at least one control member carried by said frame body, said control member being coupled to said blade actuator for controlling operation of said blade actuator for moving said blade assembly relative to said plate. ### Claim 6 (depends on 1) The machine of claim 1, and further comprising at least one control member carried by said frame body, said control member being coupled to said plate actuator for controlling operation of said plate actuator for moving said plate relative to said frame body. ### Claim 7 (depends on 1) The machine of claim 1 in which said plate actuator includes at least one cylinder carried by one of said frame body and said plate and at least one ram coupling said cylinder to the other of said frame body and said plate. ### Claim 8 (depends on 1) The machine of claim 1 in which said plate actuator is a hydraulic actuator. ### Claim 9 (depends on 1) The machine of claim 1 in which said blade assembly is configured to releasably retain a blade having one of a plurality of sizes and shapes. ### Claim 10 (depends on 1) The machine of claim 1 in which said blade has spaced, first and second edges, said first edge being configured to remove said material from said surface and said second edge mounted to said blade assembly, and in which said blade assembly has an elongated channel defined therein, said elongated channel being shaped to receive said second edge of said blade. ### Claim 11 (depends on 10) The machine of claim 10 in which said blade assembly includes an upper support member and a lower support member positioned to define said elongated channel therebetween, said upper support member and said lower support member being releasably secured together to grip said second edge of said blade and mount said blade to said blade assembly. ### Claim 12 (depends on 1) The machine of claim 1 in which said frame body has a pair of wheels mounted thereto, and in which said means for propelling said frame body includes a hydrostatic motor associated with each of said wheels. ### Claim 13 (depends on 1) The machine of claim 1, and further comprising at least one removable weight carried by said plate, said weight increasing the pressure applied to said blade during the removal of said material from said surface. ### Claim 14 (depends on 1) The machine of claim 1, and further comprising a misting system carried by said frame body for spraying said material with a fluid. ### Claim 15 A machine adapted to remove a material laid upon an under surface, such machine comprising: a wheeled and steerable tractor having a front end and a rear end; a plate mountable to the front end of the tractor, such plate having a proximal end closer to the front end of the tractor and a distal end more remote from the front end of the tractor; mounting means for mounting said plate to the tractor and permitting movement of the plate between a first position farther removed from a surface and a second position closer to the surface; a blade assembly mounted on the distal end of the plate for pivotal movement between a plurality of angular orientations relative to said plate, said blade assembly severing a section of material from the material laid upon the under surface and removing the severed section of material from the under surface during operation of said machine; and means for so moving said plate and said blade assembly including at least one blade actuator mounted to said frame body and coupled to said blade assembly for moving said blade assembly relative to said plate. ### Claim 16 (depends on 15) The machine of claim 15 in which said means for so moving said plate and said blade assembly includes at least one plate actuator coupled to said plate for moving said plate relative to said surface. ### Claim 17 (depends on 16) The machine of claim 16 in which said plate actuator includes at least one cylinder carried by one of said tractor and said plate and at least one ram coupling said cylinder to the other of said tractor and said plate. ### Claim 18 (depends on 15) The machine of claim 15 in which said blade actuator includes at least one cylinder carried by one of said frame body and said blade assembly and at least one ram coupling said cylinder to the other of said frame body and said blade assembly. ### Claim 19 (depends on 15) The machine of claim 15 in which said means for so moving said plate and said blade assembly includes at least one control actuable by an operator for controlling movement of said plate relative to said surface and for controlling movement of said blade assembly relative to said plate. ### Claim 20 A machine for removing a material mounted to an underlying surface from said underlying surface, said machine comprising: a frame body; means for propelling said frame body relative to said surface; a blade assembly carried by said frame body, said blade assembly being movable between a deployed position, for removal of said material from said surface, and a stored position, said blade assembly including a removal blade for removing said material from said surface; at least one blade actuator mounted to said frame body and said blade assembly for adjusting the position of said blade assembly and securing said blade assembly in a selected position during oration of said machine: a misting system carried by said frame body for spraying said material with a fluid prior to removal of said material from said surface. ### Claim 21 (depends on 20) The machine of claim 20 in which said misting system includes a nozzle mounted to said frame body and coupled to a fluid source carried by said frame body. ### Claim 22 (depends on 21) The machine of claim 21 in which said nozzle is adjustable between a plurality of positions relative to said frame body. ### Claim 23 (depends on 21) The machine of claim 21 in which said nozzle is removably mounted to said frame body. ### Claim 24 (depends on 20) The machine of claim 20 which further comprises a plate carried by said frame body and at least one plate actuator mounted to said frame body and said plate, said plate being movable relative to said frame body between a deployed position for removal of said material from said surface and a stored position with said plate positioned for unrestricted movement of said frame body relative to said surface upon activation of said plate actuator, and in which said blade assembly is movable between a plurality of positions with said blade oriented at an angle relative to said plate; said blade assembly being secured in a selected one of said plurality of positions during removal of said material from said surface.