Internal pile cutter
OwnerLeon Trudeauinventor
Life of this patent
Estimating the term…
Abstract
Assemblies to cut a hollow piling are provided, which may have a pressurized hydraulic fluid supply configured to supply enough force to cut through up to the circumference of a piling having a housing having a cavity to receive the hydraulic fluid, the housing having at least one cylinder wall; at least one piston assembly slidably disposed within the at least one cylinder wall configured to extend from the at least one cylinder wall in response to the introduction of pressurized hydraulic fluid into the housing cavity; and a blade attached at a radially distal end of the piston assembly, whereby as the blade extends through the cylinder wall, a cutting force is applied to an encountered piling wall.
Claims11
An assembly to internally cut a hollow piling, comprising:
- a pressurized hydraulic fluid supply configured to supply enough force to cut through up to a circumference of a piling;
- a housing having a cavity to receive the hydraulic fluid,
- the housing having at least two cylinder walls in fluid communication with the cavity;
- a slidably disposed piston assembly within each of the at least two cylinder walls configured to extend from each of the at least two cylinder walls in response to the introduction of pressurized hydraulic fluid into the housing cavity;
- and
- a blade fixedly and interchangeably attached at a radially distal end of each of the at least two piston assemblies,
- wherein the blade is configured to apply a cutting force to an entire circumference of a hollow piling solely from a single extension of the slidably disposed at least two piston assemblies;
- wherein the assembly is configured so that as the piston assembly extends through each of the at least two cylinder walls, a cutting force by the attached blades is applied to through-cut the entire circumference of an encountered internal piling wall in the single extension of the piston assembly while the housing is held in a stationary non-rotating position;
- wherein the blade cutting edges combine to form a single planar cutting surface to cut through up to the entire circumference of the entire piling;
- and
- wherein the at least two piston assemblies each has a first stop to limit extending beyond a predetermined extension stroke and a second stop on the housing to limit retracting of each of the at least two piston assemblies beyond a predetermined stroke.
An assembly to crimp a hollow piling, comprising:
- a pressurized hydraulic fluid supply configured to supply enough force to crimp a circumference of a piling;
- a housing having a cavity to receive the hydraulic fluid,
- the housing having at least two cylinder walls in fluid communication with the cavity;
- a slidably disposed piston assembly within each of the at least two cylinder walls configured to extend from each of the at least two cylinder walls in response to the introduction of pressurized hydraulic fluid into the housing cavity;
- attached at a radially distal end of the at least two piston assemblies one of a fixedly attached interchangeable crimping or fixedly attached interchangeable cutting blade;
- and
- wherein the fixedly attached interchangeable crimping blade has a rounded edge to provide a single crimp along a single plane circumference of the piling when a crimping force is applied to an encountered piling wall;
- wherein the crimping blade is configured to apply a crimping force to an entire circumference of a hollow piling solely from a single extension of the slidably disposed at least two piston assemblies;
- wherein the assembly is configured so that as the piston assembly extends through each of the at least two cylinder walls, a crimping force by the attached crimping blades is applied to crimp the entire circumference of an encountered internal piling wall in the single extension of the piston assembly while the housing is held in a stationary non-rotating position;
- wherein the crimping blade cutting edges combine to form a single planar crimping surface to crimp the entire circumference of the entire piling;
- and
- wherein the at least two piston assemblies each has a first stop to limit extending beyond a predetermined extension stroke and a second stop on the housing to limit retracting of each of the at least two piston assemblies beyond a predetermined retraction stroke.
Dependencies are inferred from the claim text.