Back to results
US 11,480,335 B2Granted
Portable ignition controller
AssigneeHarger, Inc.
InventorsMark S. Harger, William Steve Marcomb
Life of this patent
Estimating the term…
Abstract
A portable exothermic welding ignition controller includes a housing configured to receive a first portion of a portable power tool battery with a second portion of the portable tool battery external to the housing. A circuit board is positioned within the housing and configured for electrical coupling to the portable power tool battery. An actuator is operatively engageable with the circuit board for selectively discharging power from the portable power tool battery to a connection terminal electrically coupled to the circuit board.
Claims36
A portable exothermic welding ignition controller for use with a portable power tool battery, the portable exothermic welding ignition controller comprising:
- a housing portion;
- a circuit board positioned within the housing portion;
- a battery receiving portion directly associated with the housing portion, the battery receiving portion including
- a recess open on two sides of the battery receiving portion and partially defined by a pair of spaced-apart opposed sidewalls, the recess configured to receive a first portion of the portable power tool battery with a second portion of the portable power tool battery disposed outside of the recess,
- a contact surface disposed in the recess, the contact surface spaced apart by a gap from each of the pair of spaced-apart opposed sidewalls,
- a pair of electrical prongs disposed in the recess adjacent the contact surface, the pair of electrical prongs configured to electrically couple the circuit board to the portable power tool battery, each of the electrical prongs of the pair of electrical prongs extending in a direction away from and perpendicular to a plane defined by the contact surface, and
- projections disposed in the recess, the projections at least partially defining receiving cavities with each of the projections at least partially defining a respective one of the receiving cavities in the recess, each of the receiving cavities configured to slidably receive at least a portion of a corresponding shoulder of the portable power tool battery;
- a connector electrically coupled to the circuit board, wherein the connector is configured to electrically couple conducting lead wires for an exothermic welding igniter;
- and
- an actuator operatively coupled with the circuit board to cause the discharge of electrical power from the portable power tool battery through the connector to the exothermic welding igniter, the actuator configured to move in an actuation direction perpendicular to the plane defined by the contact surface.
7 more elements
A portable exothermic welding ignition controller for use with a portable power tool battery, the portable exothermic welding ignition controller comprising:
- a housing portion;
- a circuit board positioned within the housing portion;
- a battery receiving portion associated with the housing portion, the battery receiving portion including
- a recess defined in the battery receiving portion, the recess configured to receive a first portion of the portable power tool battery with a second portion of the portable power tool battery disposed outside of the recess, wherein the recess defines a first opening and a second opening, wherein the first opening defines a first plane and the second opening defines a second plane that is at an acute angle relative to the first plane, and
- a pair of spaced-apart electrical prongs disposed in the recess, the pair of electrical prongs configured to electrically couple the circuit board to the portable power tool battery;
- and
- an actuator operatively coupled with the circuit board, the actuator configured to cause the portable power tool battery to discharge power to an exothermic welding igniter,
- and
- wherein the portable exothermic welding ignition controller is configured such that when the recess receives the first portion of the portable power tool battery, a portion of the battery receiving portion external to the recess contacts and overlaps a portion of the second portion of the portable power tool battery.
6 more elements
A portable exothermic welding ignition controller for use with a portable power tool battery, the portable exothermic welding ignition controller comprising:
- a housing portion having an external housing surface;
- a circuit board positioned within the housing portion;
- a battery receiving portion associated with the housing portion, the battery receiving portion including
- a recess open on two adjacent sides of the battery receiving portion, the recess configured to receive a connection portion of the portable power tool battery with a cell portion of the portable power tool battery disposed entirely outside of the recess,
- a planar surface and two opposed sidewalls at least partially bounding the recess,
- a contact surface disposed in the recess, wherein the contact surface has a maximum height extending in a direction away from the planar surface a first distance,
- a pair of electrical prongs disposed in the recess, the pair of electrical prongs configured to electrically couple the circuit board to the portable power tool battery, wherein each electrical prong of the pair of electrical prongs is perpendicular to the contact surface and the planar surface and has a maximum prong height extending in the direction away from the planar surface a second distance, wherein the first distance is greater than the second distance, and
- projections disposed in the recess, each of the projections partially defining a respective one of a plurality of receiving cavities in the recess, each receiving cavity of the plurality of receiving cavities configured to slidably receive at least a portion of a corresponding shoulder of the portable power tool battery such that the portable power tool battery moves linearly toward the contact surface for insertion of the connection portion of the portable power tool battery into the recess;
- a connector electrically coupled to the circuit board, wherein the connector is configured to receive an end of a pair of conducting lead wires to selectively electrically couple the pair of conducting lead wires to the portable power tool battery;
- an actuator operatively coupled with the circuit board, the actuator and the circuit board configured to cause the portable power tool battery to discharge power through the connector to the exothermic welding igniter;
- and
- wherein at least one of the external housing surface and the battery receiving portion is configured to rest on the portable power tool battery such that the portable exothermic welding ignition controller is configured to be supported by the portable power tool battery.
9 more elements
Dependencies are inferred from the claim text.