# US 8,770,900 B1 · Planing tool for pilings > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,900 B1 - Document ID: US8770900B1 - Status: Granted - Kind: B1 - Application number: 13/888,469 - Filed: 2013-05-07 - Granted: 2014-07-08 - Earliest claimed: 2013-05-07 - Applicants: Harold F Schmidt - Inventors: Harold F Schmidt - Web page: https://patentgrep.com/patent/US8770900B1 ## CPC - B27G 15/00: Boring or turning tools; Augers - B27B 5/12: Cylinder saws {(machine for producing flat surfaces by cutting through a workpiece with a tool having a rotational vector parallel to the surfaces generated by cutting B27C1/007)} - Y10T 408/356: including plunging [single stroke] cutter - Y10T 408/893: Hollow milling Tool - Y10T 408/8957: and having stepped cutting edges - B27G: ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS (tools for grinding B24D; sawing tools B27B33/00; tools for slotting or mortising machines B27F5/02; tools for the manufacture of wood shavings, chips, powder or the like B27L11/00); SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS - B27B: SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR (saws specially adapted for pruning or debranching A01G3/08; sawing apparatus specially adapted for felling trees A01G23/091; features not restricted to a particular type of wood saw B23D, e.g. attaching saw blades B23D51/00; machine tool frames, beds, pillars or like members, in general B23Q1/01) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A piling planing tool utilizes a cylindrical cutter head connected to a cylindrical cutter ring having teeth for planing the outer surfaces of damaged or deteriorating in situ pilings. Spacer rings are attached between the cutter head and cutter ring to lengthen the planing tool, in order to extend the tool to plane lower outer surfaces of the pilings. A drill bit extends through the planing tool to bore center channels into the pilings. A circular cutting blade is provided beneath the cutter head to plane the top of the piling. The method of reforming in situ pilings utilizes the planing tool to shape pilings so that they can be connected with new pilings. The pilings are connected by an internal steel rebar and sleeve, permanently secured with bonding material to form a single reformed piling having high tensile strength. ## Claims ### Claim 1 A planing tool for reforming the surfaces of in situ pilings, said tool comprising: a unitary circular cutter head having a top wall, an open bottom, an internal space, and first planing means mounted within the space, secured below and parallel to the top wall, for shaving and smoothing the top surface of an in situ piling, said first planing means comprising a circular planing blade mounted in the internal space, below the top wall, said blade having material planing teeth on its bottom surface; second planing means connected to the cutter head for shaving the outer surface and reducing the diameter of an in situ piling; planing tool extension means for increasing the length of the planing tool; attachment means for connecting the second planing means to the cutter head and the extension means; drilling means extending from the top wall into the internal space for boring a channel into the piling, said drilling means extending perpendicularly to the circular planing blade; and motive power connection means for securing the planing tool to power means for rotating the planing tool, and its cutter head, first and second planing means, and the planing tool extension means. ### Claim 2 (depends on 1) The planing tool as in claim 1 wherein the second planing means comprises a cutter ring with material cutting planing teeth extending around a circumference of the cutter ring. ### Claim 3 (depends on 1) The planing tool as in claim 1 wherein the attachment means comprises ring connections between the cutter head and the planing tool extension means, between the cutter head and the second planing means, and between the second planing means and the planing tool extension means. ### Claim 4 (depends on 1) The planing tool as in claim 1 wherein the planing tool extension means comprises multiple spacer rings aligned with the cutter head and second planing means, for attachment with the cutter head and second planing means. ### Claim 5 (depends on 1) The planing tool as in claim 1 wherein the drilling means comprises a drill bit in excess of one inch in diameter. ### Claim 6 A planing tool for reforming the surfaces of in situ pilings, said tool comprising: a unitary circular cutter head having a top wall, an open bottom, an internal space, and a circular planing blade mounted within the space, secured below and parallel to the top wall, for shaving and planing the top surface of an in situ piling, said planing blade having material planing teeth on its bottom surface; a cutter ring with material cutting planing teeth extending around a circumference of the cutter ring for planing the outer surface of an in situ piling to reduce the diameter of the piling; attachment means for connecting the cutter ring to the cutter head; drilling means extending from the top wall into the internal space for boring a channel into the piling, said drilling means extending perpendicularly to the planing blade; and motive power connection means for securing the planing tool to power means for rotating the planing tool, and its cutter head, cutter blade, and cutter ring. ### Claim 7 (depends on 6) The planing tool as in claim 6 further comprising at least one spacer ring for increasing the length of the planing tool, aligned with and attached to the cutter head and the planing ring. ### Claim 8 (depends on 6) The planing tool as in claim 6 further comprising multiple spacer rings for increasing the length of the planing tool, the spacer rings aligned with and attached to the cutter head and the cutter ring. ### Claim 9 (depends on 6) The planing tool as in claim 6 wherein the drilling means comprises a drill bit in excess of one inch in diameter. ### Claim 10 A planing tool for reforming the surfaces of in situ pilings, said tool comprising: a unitary circular cutter head having a top wall, an open bottom, an internal space, and first planing means mounted within the space, secured below and parallel to the top wall, for shaving and smoothing the top surface of an in situ piling; second planing means connected to the cutter head for shaving the outer surface and reducing the diameter of an in situ piling; planing tool extension means for increasing the length of the planing tool, said planing tool extension means comprising at least one spacer ring aligned with the cutter head and second planing means for attachment to the cutter head and second planing means; attachment means for connecting the second planing means to the cutter head and the extension means; drilling means extending from the top wall into the internal space for boring a channel into the piling, said drilling means extending perpendicularly to the first planing means; and motive power connection means for securing the planing tool to power means for rotating the planing tool, and its cutter head, first and second planing means, and the planing tool extension means.