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US 6,470,576 B2Granted
Battery powered circular saw
AssigneeOne World Technologies Limited
InventorJames B. Watson
Life of this patent
Estimating the term…
Abstract
A battery powered circular saw is provided with a novel motor housing and handle assembly having a rearwardly extending primary handle inclined 15° to 40° relative to a rearwardly longitudinally extending tubular housing member. A battery pack is attached to the rear end of the primary handle and is provided with an elongated projection which extends into the elongate tubular housing.
Claims15
A battery powered circular saw comprising:
- a DC electric motor;
- a spindle rotatably driven by the electric motor about a transverse axis;
- a thin planar circular saw blade concentrically mounted to the spindle normal to the transverse axis;
- a motor housing and handle assembly including;
- a motor housing portion supporting the electric motor and the rotatably driven spindle;
- an elongate tubular housing portion extending longitudinally rearward from the motor housing portion generally perpendicular to the transverse axis;
- an elongate primary handle having a forward end attached to and spaced above the motor housing portion and a rearward end affixed to the elongate tubular housing portion wherein the primary handle is inclined relative to the elongate tubular housing portion at an angle β which is between 15° and 95°;
- and
- a battery pack removably attached to the rearward end of the primary handle and having an elongated projection extending into the elongate tubular housing portion to electrically connect the battery pack to the electric motor.
6 more elements
A battery powered circular saw comprising:
- a DC electric motor;
- a spindle rotatably driven by the electric motor about a transverse axis;
- a thin planar circular saw blade concentrically mounted to the spindle normal to the transverse axis;
- a motor housing and handle assembly including;
- a motor housing portion supporting the electric motor and the rotatably driven spindle;
- an elongate tubular housing portion extending longitudinally rearward from the motor housing portion generally perpendicular to the transverse axis;
- an elongate primary handle having a forward end attached to and spaced above the motor housing portion and a rearward end affixed to the elongate tubular housing portion wherein the primary handle is inclined relative to the elongate tubular housing portion at an angle β which is between 15° and 45°;
- a secondary handle attached to and spaced above the motor housing portion at a location adjacent to the primary handle to enable a user to grasp the saw with two hands;
- and
- a battery pack removably attached to the rearward end of the primary handle and having an elongated projection extending into the elongate tubular housing portion to electrically connect the battery pack to the electric motor.
7 more elements
Dependencies are inferred from the claim text.