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US 2008/0073091 A1Published application
Impact piston
OwnerSteven James Lindsayinventor
Life of this patent
Estimating the term…
Abstract
An improved piston for a pneumatic hand engraving impact power tool. More specifically, the invention provides a piston for an engraving impact tool made from a material that is more dense than steel. In addition the invention provides an improved piston for fine engraving using a microscope utilizing a soft faced piston.
Claims18
1-16. (canceled)
A hand engraving pneumatic impact tool for use with a supply of pressurized fluid comprising:
- a cylinder;
- a piston received in said cylinder for bi-directional movement within said cylinder;
- and
- said piston made from a material with a density greater than 12 grams per cubic centimeter.
1 more element
A hand engraving pneumatic impact tool for use with a supply of pressurized fluid comprising:
- a cylinder;
- a piston received in said cylinder;
- an impact surface at one end of said cylinder for said piston to impact against;
- and
- said piston having a soft face that engages with said impact surface.
2 more elements
A method of hand engraving an object comprising:
- providing an impact power tool having a cylinder having a first end and a second end;
- a piston received in said cylinder for bi-directional movement between said first end and said second end;
- an impact surface positioned at said first end of said cylinder for said piston to impact against;
- and
- said piston made from a material with a density greater than about 12 grams per cubic centimeter;
2 more elements
Dependencies are inferred from the claim text.