# US 2025/0154782 A1 · Scraper System With Fixed Working-Angle Lift And Toothed Tool Assembly

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- Number: US 2025/0154782 A1
- Document ID: US20250154782A1
- Status: Published application
- Kind: A1
- Application number: 18/948,361
- Filed: 2024-11-14
- Published: 2025-05-15
- Earliest claimed: 2023-11-14
- Assignees: Onsite Equipment Manufacturing LLC
- Applicants: Onsite Equipment Manufacturing LLC
- Inventors: Max F Buchanan; Charles A. Barkley
- Web page: https://patentgrep.com/patent/US20250154782A1

## CPC

- E04G 23/006: {Arrangements for removing of previously fixed floor coverings}
- 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 riding machine for scraping floor surfaces includes a fixed working-angle lift assembly allowing upward and downward movement of a tool to/from the floor independent of rotation of the tool to/from a working angle. A slide assembly slides on pins or shafts in slots in the frame of the riding machine and includes a blade slide and a blade swivel that rotates relative to the blade slide on a shaft. Upward and downward movement and rotation are effected by hydraulic cylinders. A toothed tool assembly includes a tool base mounted to the lift assembly by a shaft, the tool base including a mounting point for one or more teeth for scraping, and a loading surface on a transverse rail for transmitting force from the riding machine to the teeth. The teeth are mounted with a face against the loading surface. A carbide insert on the teeth has a diamond profile.

## Claims

### Claim 1

A toothed tool assembly for scraping a surface, comprising:
a shaft;
a tooth base;
the tooth base having a tooth end and a shaft end;
the tooth base mounted to the shaft at the shaft end;
the tooth base having a loading face transversely therebetween; and
the tooth base having a mounting point between the tooth end and the loading face; and
the mounting point comprising a mounting surface and at least one teeth position.

### Claim 2 (depends on 1)

The toothed tool assembly of claim 1, further comprising:
one or more teeth, the one or more teeth each comprising:
a chisel end;
a rail face; and
a base face between the chisel end and rail face;
the base face mounted to said mounting point; and
the chisel end extending beyond the tooth base.

### Claim 3 (depends on 2)

The toothed tool assembly of claim 2, further comprising:
the rail face mounted against the loading face.

### Claim 4 (depends on 3)

The toothed tool assembly of claim 3, further comprising:
the rail face in compressive loading on the loading face.

### Claim 5 (depends on 1)

The toothed tool assembly of claim 1, further comprising:
the base face of the one or more teeth compressed by a bolt to the mounting surface.

### Claim 6 (depends on 1)

The toothed tool assembly of claim 1, further comprising:
one or more teeth, the one or more teeth each comprising:
a chisel end;
a base face;
the base face mounted to said mounting point; and
the chisel end comprising a carbide insert;
the carbide insert having a diamond profile.

### Claim 7 (depends on 1)

The toothed tool assembly of claim 1:
the mounting point comprising at least three teeth positions.

### Claim 8 (depends on 7)

The toothed tool assembly of claim 7:
the at least three teeth positions comprising a first teeth position aligned to the shaft and having at least one teeth position to either side of the first teeth position.

### Claim 9 (depends on 7)

The toothed tool assembly of claim 7, further comprising:
one or more teeth, the one or more teeth each comprising:
a chisel end;
a base face;
the base face mounted to said mounting point; and
a teeth configuration selected from the group of: full teeth configuration, center tooth configuration, and gap-toothed configuration.

### Claim 10 (depends on 1)

The toothed tool assembly of claim 1, further comprising:
a rail extending outwardly from the mounting surface;
the rail comprising the loading surface;

### Claim 11 (depends on 10)

The toothed tool assembly of claim 10:
the rail extending toward the shaft end from said loading surface.

### Claim 12 (depends on 10)

The toothed tool assembly of claim 10:
the rail extending between the loading surface and the shaft.

### Claim 13 (depends on 1)

The toothed tool assembly of claim 1:
the mounting point comprising a single teeth position; and
the tooth base comprising a tapered section.

### Claim 14 (depends on 1)

The toothed tool assembly of claim 1:
the shaft having a tool end and a connecting end; and
the connecting end mounted on a riding machine.

### Claim 15

The tooth for scraping surfaces, comprising:
a chisel end;
a rail face opposite the chisel end; and
a base face between the chisel end and rail face;
the chisel end comprising a carbide insert;
the carbide insert having a diamond profile.

### Claim 16 (depends on 15)

The tooth of claim 15, further comprising:
a pocket for the carbide insert;
the pocket comprising opposing symmetrical insert faces; and
said carbide insert welded to said insert faces.

### Claim 17 (depends on 16)

The tooth of claim 16, further comprising:
an upper side opposing the base face; and
the insert faces extending between the base face and the upper side.

### Claim 18 (depends on 15)

The tooth of claim 15, further comprising:
an upper side opposing the base face; and
a bolt hole through the upper side and the base face.

### Claim 19

A riding machine, comprising:
a frame comprising at least one lift assembly slot on either side of the riding machine; and
an adjustable lift assembly comprising,
a slide assembly, comprising
a blade swivel, comprising
a swivel pin shaft along a transverse axis to the lift assembly slots; and
one or more sockets for receiving a shaft;
a blade slide, comprising
center pins along the transverse axis to the lift assembly slots;
the slide assembly upwardly slidable relative to the frame on the center pins and swivel pin shaft along the lift assembly slots; and
the blade swivel rotatable along the transverse axis about the swivel pin shaft.

### Claim 20 (depends on 19)

The riding machine of claim 19,
the frame comprising at least an upper lift assembly slot and a lower lift assembly slot on either side; and
the swivel pin shaft having ends;
the swivel pin ends in the lower lift assembly slots; and
the center pins in the upper lift assembly slots.

### Claim 21 (depends on 19)

The riding machine of claim 19,
the frame comprising a pair of frame rails;
each said frame rail comprising at least one of said lift assembly slots.

### Claim 22 (depends on 19)

The riding machine of claim 19,
the blade slide further comprising
at least one center lift rail; and
a center pin tube connected to said center pins; and
a fixed pin tube connected to the swivel pin shaft.

### Claim 23 (depends on 22)

The riding machine of claim 22,
the at least one center lift rail having a bottom;
the at least one center lift rail connected near the bottom to the fixed pin tube; and
the at least one center lift rail connected to the center pin tube.

### Claim 24 (depends on 22)

The riding machine of claim 22,
the blade slide further comprising a pair of center lift rails; and
the center lift rails having a bottom;
the center lift rails connected near the bottom by the fixed pin tube; and
the center lift rails connected by the center pin tube.

### Claim 25 (depends on 19)

The riding machine of claim 19,
the blade swivel further comprising at least one swivel pin tube;
the blade slide further comprising a fixed pin tube; and
the swivel pin shaft passing through the at least one swivel pin tube and the fixed pin tube.

### Claim 26 (depends on 19)

The riding machine of claim 19:
the blade swivel comprising three sockets.

### Claim 27 (depends on 19)

The riding machine of claim 19, further comprising:
an extendable and retractable lift cylinder connected to the blade slide and to the frame.

### Claim 28 (depends on 27)

The riding machine of claim 27,
the lift cylinder for sliding the slide assembly between a working elevation and an off-floor elevation.

### Claim 29 (depends on 19)

The riding machine of claim 19, further comprising:
an extendable and retractable tilt cylinder connected to the blade slide and to the blade swivel.

### Claim 30 (depends on 29)

The riding machine of claim 29,
the tilt cylinder for rotating the blade swivel between a working tilt and an off-floor tilt.

### Claim 31 (depends on 19)

The riding machine of claim 19, further comprising:
a tool assembly, comprising one selected from a blade assembly and a toothed tool assembly:
the tool assembly connected to the one or more sockets on the blade swivel.

### Claim 32 (depends on 31)

The riding machine of claim 31:
the blade swivel comprising three sockets; and
at least one of said sockets is positioned off a centerline of the blade swivel to position at least part of the tool assembly past a side of the riding machine.

### Claim 33 (depends on 31)

The riding machine of claim 31, further comprising:
one or more blade assemblies for clamping a scraping blade, comprising
a blade holder base, having a shaft section and a plate section; and
one or more blade clamps, adjustably fixed to the blade holder base against the plate section.

### Claim 34 (depends on 31)

The riding machine of claim 31, further comprising:
one or more toothed tool assemblies for supporting teeth, comprising
a shaft;
a tooth base;
the tooth base having a tooth end and a shaft end;
the tooth base mounted to the shaft at the shaft end;
the tooth base having a loading face transversely therebetween; and
the tooth base having a mounting point between the tooth end and the loading face; and
the mounting point comprising a mounting surface and at least one teeth position.

### Claim 35 (depends on 19)

The riding machine of claim 19,
said lift assembly slots at a repose angle of about 30-40 degrees.

### Claim 36

A method of adjusting height and working angle of a tool assembly on a riding machine, comprising:
sliding a slide assembly upwardly relative to a frame of the riding machine on center pins and a swivel pin shaft along at least one lift assembly slot on either side of the riding machine;
rotating a blade swivel about the swivel pin shaft along a transverse axis to the lift assembly slots;
the sliding step comprising sliding the blade swivel independently of rotating the blade swivel; and
the rotating step comprising rotating the blade swivel independently of sliding the slide assembly.

### Claim 37 (depends on 36)

The riding machine of claim 36,
the blade swivel comprising one or more sockets for receiving a shaft for a tool assembly.

### Claim 38 (depends on 36)

The riding machine of claim 36,
the sliding step further comprising sliding a blade slide comprising the center pins and connected to the swivel pin shaft.

### Claim 39 (depends on 36)

The riding machine of claim 36,
the sliding step further comprising operating a lift cylinder to slide the slide assembly between a working elevation and an off-floor elevation.

### Claim 40 (depends on 39)

The riding machine of claim 39,
the slide assembly further comprising a blade slide, the blade slid comprising the center pins and connected to the swivel pin shaft; and
the operating a lift cylinder step comprising extending and retracting the lift cylinder, the lift cylinder being connected to the blade slide and to the frame.

### Claim 41 (depends on 36)

The riding machine of claim 36,
the rotating step further comprising operating a tilt cylinder to rotate the blade swivel between a working tilt and an off-floor tilt.

### Claim 42 (depends on 41)

The riding machine of claim 41,
the slide assembly further comprising a blade slide, the blade slid comprising the center pins and connected to the swivel pin shaft; and
the operating a tilt cylinder step comprising extending and retracting the tilt cylinder, the lift cylinder being connected to the blade slide and to the blade swivel.