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US 2022/0176479 A1Published application
Dust guard for circular saws
AssigneeJPL Global, LLC
InventorPaul W. GUTH
Life of this patent
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Abstract
An improved design for a dust shroud providing an airflow conduit for collecting dust off a work piece and a saw blade is disclosed. The dust shroud is configured with either one or two extending and telescoping lower rigid jaws that are durable and can engage a work piece at different angles. A novel roller is additionally provided for moving along a work piece.
Claims10
A circular saw blade dust guard apparatus comprising:
- a shroud configured to form an enclosure by surrounding portions of both sides of a saw blade to provide a conduit configured to suction dust and capable of holding a negative pressure with respect to atmosphere between the shroud and a dust holding area;
- and
- a telescoping jaw rotating about at least one pivot point and comprising at least a middle jaw portion and a forward jaw portion, wherein:
- the middle jaw portion is configured to retract into the shroud;
- the forward jaw portion is configured to retract into the middle jaw portion;
- and
- the forward jaw portion further comprising at least one scoop removably secured with respect to the forward jaw portion and configured to facilitate angled cuts, wherein the at least one scoop comprises a first scoop that is interchangeable with a second scoop, the first scoop providing a first angled surface, and the second scoop providing a second angled surface different than the first angled surface.
4 more elements
A circular saw blade dust guard apparatus comprising:
- a telescoping jaw rotating about at least one pivot point and comprising at least a middle jaw portion and a forward jaw portion, wherein:
- the middle jaw portion is configured to retract into a shroud configured to form an enclosure by surrounding portions of both sides of a saw blade;
- the forward jaw portion is configured to retract into the middle jaw portion;
- and
- the forward jaw portion further comprising at least one scoop removably secured with respect to the forward jaw portion and configured to facilitate angled cuts, wherein the at least one scoop comprises a first scoop that is interchangeable with a second scoop, the first scoop providing a first angled surface, and the second scoop providing a second angled surface different than the first angled surface.
2 more elements
A circular saw blade dust guard apparatus comprising:
- a telescoping jaw rotating about at least one pivot point and comprising at least a middle jaw portion and a forward jaw portion, wherein:
- the middle jaw portion is configured to retract into a shroud configured to form an enclosure by surrounding portions of both sides of a saw blade;
- the forward jaw portion is configured to retract into the middle jaw portion;
- and
- the forward jaw portion further comprising at least one scoop and a mounting mechanism, wherein the mounting mechanism is configured to facilitate removably securing the at least one scoop.
2 more elements
Dependencies are inferred from the claim text.