Back to results
US 10,926,577 B1Granted
Electric graver, system and method for jewelers
AssigneeChristian DeCamillis
InventorsChristian DeCamillis, David Johnson
Life of this patent
Estimating the term…
Abstract
A solenoid-driven graver having improved feel and handling characteristics. The graver is controlled by a user-operated foot pedal having novel sensor and response characteristics, through a programmable controller allowing the user to select the desired response of the solenoid in the graver in proportion to pedal rotation.
Claims11
A handheld graver comprising:
- a fixed-position graver tip held in a forward end of a heat-conductive metal stylus tube;
- a hollow rear handle section comprising a wall of heat-insulating material;
- a solenoid unit mounted in the hollow rear handle section, the solenoid unit comprising a plunger reciprocating in a heat-conductive metal solenoid housing, the plunger connected to an actuator rod extending through a forward interface end of the solenoid housing to selectively engage an anvil in contact with the graver tip in the stylus tube;
- the forward interface end of the solenoid housing connected to the stylus tube with a heat sink connection comprising a heat-conductive metal-to-metal connection, and further comprising a plurality of heat-convective fins extending outwardly from an outer surface of the forward interface end of the solenoid housing adjacent the heat-conductive metal-to-metal connection;
- and,
- the hollow rear handle section connected to a rear end of the solenoid housing at a rear insulating connection via a rear portion of the wall of heat-insulating material, the hollow rear handle section further defining an insulating air gap spacing the wall of heat-insulating material of the hollow rear handle section from the heat-convective fins and from a remainder of the solenoid unit forwardly of the rear insulating connection.
3 more elements
Dependencies are inferred from the claim text.