Workpiece removal device for a hole saw
AssigneeEazypower Corporation
InventorBurton Kozak
Life of this patent
Estimating the term…
Abstract
A workpiece removal device 10 for a hole saw 8 includes a positioning member 12 joined to the hole saw 8, a first securing member 14 joined to the positioning member 12, a biasing member 16 having a first end 18 joined to the first securing member 14; a second securing member 20 joined to a second end 22 of the biasing member 16; and disposing the second securing member 20 in communication with a workpiece whereby a preselected portion of the workpiece is ultimately severed from the workpiece by the hole saw, whereupon, the biasing member forcibly removes the severed preselected portion of the workpiece from the hole saw.
Claims33
A workpiece removal device for a hole saw comprising:
- a positioning member joined to the hole saw;
- a first securing member integrally joined to said positioning member, said positioning member includes a drill bit having a reduced insertion end with a rim wall for substantially maintaining the position of said first securing member relative to an outer wall of a locking member;
- a biasing member having a first end integrally joined to said first securing member;
- a second securing member integrally joined to a second end of said biasing member;
- and
- means for disposing said second securing member in communication with a workpiece whereby a preselected portion of the workpiece is ultimately severed from the workpiece by the hole saw, whereupon, said biasing member forcibly removes the severed preselected portion of the workpiece from the hole saw.
A device for removing a severed portion of a workpiece from a hole saw comprising:
- a positioning member joined to the hole saw, said positioning member includes a drill bit that is removably secured to a locking member, said drill bit includes a reduced insertion end with a rim wall for substantially maintaining the position of a first securing member relative to an outer wall of said locking member;
- a biasing member having a first end joined to first securing member, said biasing member having a second end joined to a second securing member;
- and
- means for engaging said second securing member with a workpiece whereby a preselected portion of the workpiece is severed from the workpiece by the hole saw, whereupon, said biasing means forcibly removes the severed preselected portion of the workpiece from the hole saw.
A hole saw device for a workpiece comprising:
- a tapered hole saw;
- a first securing member disposed adjacent to a bottom wall of said tapered hole saw;
- a drill bit having reduced insertion end that includes a rim wall for substantially maintaining the position of said first securing member relative to an outer wall of a locking member;
- a biasing member having a first end secured to said first securing member;
- a second securing member secured to a second end of said biasing member;
- and
- means for engaging said second securing member with a workpiece whereby a preselected portion of the workpiece is ultimately severed and removed from the workpiece by said tapered hole saw, whereupon, said biasing means forcibly removes a portion of the severed preselected portion of the workpiece from the hole saw to promote the manual removal of the severed preselected portion from the tapered hole saw.
The device of 24 wherein said tapered hole saw includes an axial dimension that promotes the containment of the severed portion inside said hole saw to retain the severed portion upon said drill bit as said hole saw is removed from the workpiece thereby preventing the severed portion from falling from the drill bit and obstructing the newly cut hole.
Dependencies are inferred from the claim text.