Portable, battery-powered air compressor for a pneumatic tool system
AssigneeBlack & Decker Inc.
InventorsJames Andrew Patton, Michael Anthony Lagaly, Patrick Gerald Barry, Julie Lynn Jones, Deborah Lynn Harr
Life of this patent
Estimating the term…
Abstract
A portable pneumatic fastening tool has an onboard compressor assembly to alleviate the need for an external air compressor. The onboard compressor assembly includes a motor and a compressor mounted to the tool body. The motor can be powered by a detachable battery mounted to a cover for covering the onboard compressor assembly. A portable pneumatic fastening tool may also be powered by a portable compressor assembly which can be borne by the user.
Claims30
A portable compressor assembly for providing compressed air to a hand-held pneumatic tool, the portable compressor assembly comprising:
- a housing;
- a battery;
- a compressor located at least partially inside the housing;
- an electric motor operatively connected to and powering the compressor, the battery powering the electric motor;
- a port in communication with the compressor;
- a pressure sensitive switch assembly which senses a pressure of the compressed air available to the port and controls the flow of electric power to the electric motor in response to the pressure;
- and
- means for a user to removably mount the portable compressor assembly on a hand-held pneumatic tool.
A hand-held pneumatic tool comprising:
- a body;
- a chamber formed in the body;
- a drive piston received in the chamber for reciprocal movement therein;
- and
- a portable compressor assembly mounted to the body for providing compressed air to drive the drive piston in the chamber, the compressor assembly comprising:
- a housing;
- a battery;
- a compressor located at least partially inside the housing;
- an electric motor operatively connected to and powering the compressor, the battery powering the electric motor;
- a port in communication with the compressor;
- and
- a pressure sensitive switch assembly which senses a pressure of the compressed air available to the port and controls the flow of electric power to the electric motor in response to the pressure.
A portable compressor assembly for providing compressed air to a hand-held pneumatic tool, the portable compressor assembly comprising:
- a housing;
- a battery mounted to the housing;
- a compressor located at least partially inside the housing;
- an electric motor operatively connected to and powering the compressor, the battery powering the electric motor;
- a port in communication with the compressor;
- a pressure sensitive switch assembly which senses a pressure of the compressed air available to the port and controls the flow of electric power to the electric motor in response to the pressure:
- and
- means to be passively borne by a user;
- wherein the pressure sensitive switch assembly turns on the flow of electric power to the electric motor when the pressure falls below a first predetermined value, and turns off the flow of electric power to the electric motor when the pressure rises above a second predetermined value.
A portable, battery powered air compressor comprising:
- a compressor assembly comprising:
- a compressor;
- and
- a rotary electric motor mounted to the compressor;
- a compressor cover at least partially enclosing the compressor assembly;
- a battery mounted to the compressor cover, the battery powering the rotary electric motor;
- a port in communication with the compressor;
- a control means which senses a pressure of the compressed air available to the port, wherein the control means is adapted to maintain the pressure of the compressed air relative to a first pressure and a second pressure during operation of the portable compressor assembly;
- and
- means permitting the portable, battery powered air compressor to be borne by a user.
Dependencies are inferred from the claim text.