Circular saw with blower
OwnerRichard Wersheinventor
Life of this patent
Estimating the term…
Abstract
A circular saw (14) has a blower conduit (76) for producing a sufficiently strong air current directly in front of the circular saw blade (18) to blow away saw dust from about the lead guide (34) that is aligned directly in front of the saw blade. The lead guide is mounted at the front edge of the foot (30). The conduit (76) is attached to a funnel section (70) that receives air from blower fan (28). The conduit 76 is self supporting and extends from the funnel section (70) and has a free standing distal end (67) that can be adjustably pointed to the lead guide (34) to allow passage of air flow from the exhaust vents to the lead guide.
Claims4
In a circular saw power tool having a blade protective housing, a lead guide mounted in front of said blade protective housing for resting on a piece of wood;
- a hub mounting adapted to mount a circular saw blade, a motor rotatably driving said hub mounting, a motor housing mounted about said motor, a cooling fan mounted to said motor within said motor housing for directing air about said motor and out through a vent nozzle in said motor housing;
- the improvement characterized by:
- said vent nozzle constructed to mount a self supporting conduit that has a free standing distal end that directs air from the vent nozzle to the lead guide for blowing saw dust away from said lead guide when said motor is on and rotating said saw blade;
- and
- said vent nozzle connected to a funnel section that is integrally formed in said motor housing.
In a circular saw power tool having a blade protective housing, a lead guide mounted in front of said blade protective housing for resting on a piece of wood;
- a hub mounting adapted to mount a circular saw blade, a motor rotatably driving said hub mounting, a motor housing mounted about said motor, a cooling fan mounted to said motor within said motor housing for directing air about said motor and out through a vent nozzle in said motor housing;
- the improvement characterized by:
- said vent nozzle constructed to mount a self supporting conduit that has a free standing distal end that directs air from the vent nozzle to the lead guide for blowing saw dust away from said lead guide when said motor is on and rotating said saw blade;
- and
- said funnel section having auxiliary exhaust vents extending therethrough sized to provide adequate air flow about said motor and also maintain adequate air flow through said vent nozzle and said conduit to blow saw dust from said lead guide.
In a circular saw power tool having a blade protective housing, a lead guide mounted in front of said blade protective housing for resting on a piece of wood;
- a hub mounting adapted to mount a circular saw blade, a motor rotatably driving said hub mounting, a motor housing mounted about said motor, a cooling fan mounted to said motor within said motor housing for directing air about said motor and out through a vent nozzle in said motor housing;
- the improvement characterized by:
- said vent nozzle connected to a funnel section that is integrally formed in said motor housing.
Dependencies are inferred from the claim text.