Screw gun router for drywall installation
OwnerBrent R. Mitchellinventor
Life of this patent
Estimating the term…
Abstract
An improvement is provided in a screw gun used in the drywall installation industry. The improved screw gun has a conventional screw driving head at the forward end of the gun. A drive shaft extends from the motor of the gun, and an access is provided at the forward end of the housing of the screw gun to provide access to the drive shaft. An adapter member is adapted to be received in and withdrawn from the access member. The adapter member has a rotatable cutting tool associated therewith. Rotational motion is transmitted from the drive shaft to the rotatable cutting tool by the adapter member when the adapter member is received in the access member.
Claims5
In a screw gun having a housing, a nosepiece at the forward end of the housing and a handle at the backward end of the housing, wherein a drive motor is positioned within the housing of the screw gun between the forward end and the backward end thereof, with a screw driving head being mounted at the nosepiece of said screw gun to be driven by said motor, the improvement comprising
- an access opening through the forward end of said housing, said access opening being in alignment with a rotational drive shaft driven by said drive motor;
- an engageable end portion of said drive shaft being accessible through said access opening;
- a removable drive member comprising a housing having first and second ends, with said removable drive member being capable of engagement with said access opening by manually grasping said housing and inserting said first end of said housing in said access opening;
- an elongate, rotatable extension shaft having first and second ends and extending longitudinally through said housing such that the extension shaft can freely rotate within said housing about a longitudinal axis of said extension shaft, with the first end of said extension shaft being accessible at said first end of said housing and the second end of said extension shaft being accessible at said second end of said housing;
- means for engaging said first end of said extension shaft to said end portion of said drive shaft when said first end of said housing of said removable drive member is manually inserted in said access opening in the forward end of said screw gun;
- and
- means for mounting a rotatable tool to said second end of said extension shaft.
In a screw gun having a housing, a nosepiece at the forward end of the housing and a handle and at the backward end of the housing, wherein a drive motor is positioned within the housing between the forward end and the backward end thereof, with a screw driving head being mounted at the nosepiece of said screw gun to be driven by said motor, the improvement comprising
- an access means at the forward end of said housing, said access means being in alignment with a rotational drive shaft that is driven by said motor, such that an end portion of said drive shaft is accessible by way of said access means;
- a removable attachment member which can be manually engaged with and disengaged from said access means;
- a rotatable drive member associated with said attachment member;
- means for coupling said rotatable drive member to said end portion of the drive shaft when said removable attachment member is engaged with said access means;
- and
- means for mounting a rotating tool to said rotatable drive member such that when said removable attachment member is engaged with said access means, the rotating tool extends away from said backward end of said screw gun and rotates with said rotatable drive member.
Dependencies are inferred from the claim text.