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US 11,964,332 B2Granted
Hole saw arbor
OwnerHarry Omer Morrison, Jr.inventor
Life of this patent
Estimating the term…
Abstract
A hole saw arbor with mechanically automated plug removal to automatically remove the center plug of debris following drilling with the hole saw. A slidable collar is placed in an upper position on a threaded shaft to drill with the hole saw, and slid to a lower position on the threaded shaft for automated function of an ejection plate to rise within the hole saw to slowly eject a plug of removed material.
Claims15
A hole saw arbor comprising:
- a threaded shaft;
- a non-rotatable slidable collar adapted to slide without rotation axially over an outside of threads of the threaded shaft without rotation;
- an ejector mounted to a first end of the threaded shaft;
- and
- a non-threaded shaft at a second end of the threaded shaft opposite the first end, wherein
- the threaded shaft has at least one detent in a threaded portion on a flat side of the threaded shaft to hand-coerce a spring-loaded protrusion mounted in the non-rotatable slidable collar into a pre-set drilling position along the threaded shaft, whereby a hole saw is adapted to rotate on the threaded shaft over and beyond the at least one detent toward the second end of the threaded shaft, and
- the non-rotatable slidable collar is adapted to hand-secure the hole saw for rotation with the threaded shaft, the non-rotatable slidable collar having a singular flat, planar surface parallel to a base of the hole saw for mating there against, the singular flat, planar surface extending 360 degrees around a full circumference of the threaded shaft.
4 more elements
A hole saw system comprising:
- a hole saw;
- and
- a hole saw arbor comprising:
- a threaded shaft;
- a non-rotatable slidable collar adapted to slide without rotation axially over an outside of threads of the threaded shaft without rotation;
- a mechanical feature mounted to a first end of the threaded shaft;
- and
- a non-threaded shaft at a second end of the threaded shaft opposite the first end, wherein
- the threaded shaft has at least one detent in a threaded portion on a flat side of the threaded shaft to hand-coerce a spring-loaded protrusion mounted in the non-rotatable slidable collar into a pre-set drilling position along the threaded shaft, whereby the hole saw is adapted to rotate on the threaded shaft over and beyond the at least one detent toward the second end of the threaded shaft, and
- the non-rotatable slidable collar is adapted to hand-secure the hole saw for rotation with the threaded shaft, the non-rotatable slidable collar having a singular flat, planar surface parallel to a base of the hole saw for mating there against, the singular flat, planar surface extending 360 degrees around a full circumference of the threaded shaft.
7 more elements
Dependencies are inferred from the claim text.