Health and safety system for a table saw
OwnerDavid J. Butlerinventor
Life of this patent
Estimating the term…
Abstract
An improved health and safety system for a table saw includes one or more of: a blade guard that protects the operator from the saw blade, and contains and collects sawdust; a proximity detector and emergency saw motor braking means for use in connection with such blade guard; an anti-kickback device for use in connection with such blade guard, a rip fence adapter for use in connection with such a blade guard, and hoses and fittings to connect the dust containment and collection system of said blade guard to a shop dust collection blower or vacuum system. The system protects the saw operator from potential traumatic injury to a hand, and from ingesting potentially carcinogenic sawdust.
Claims25
A health and safety device adapted for attachment to a planar sawing table (62) and a rotary saw mounted therein, comprising
- a support structure (10, 11;
- 71) coupled to the sawing table at a location which permits free passage of a workpiece past said a rotating blade of said saw,
- a blade enclosure (2) open along a plane parallel to said planar sawing table and surrounding said saw blade, for purposes of both separating body parts of a saw operator from said saw blade and keeping sawdust produced during sawing operations away from a saw operator, and
- an adjustable fixation device (34, 38) for fixing said blade enclosure (2) at a desired elevation above said sawing table, said elevation being selectable within a range and corresponding to a thickness of said workpiece.
A health and safety device for a rotatable saw mounted in a sawing table, comprising:
- a generally transparent adjustable enclosure (2) surrounding said rotatable saw and secured to said sawing table (61), and including a pawl (20) so arranged that a workpiece moved against said saw, during rotation thereof, is restrained against any kickback movement toward an operator of said saw.
A sawdust containment and extraction system for a rotatable saw, comprising
- a generally transparent enclosure (2) surrounding said rotatable saw,
- an exhaust hose (67) connected to a rear portion of said transparent enclosure, and a suction generation device (70) at an enclosure-remote end of said exhaust hose (70), adapted to transport substantially all sawdust generated at said rotating saw through said hose (67) and into a deposit container.
Dependencies are inferred from the claim text.