US 12,569,969 B2Granted

Impacting apparatus

AssigneeTricord Solutions, Inc.

InventorsJohn Witzigreuter, Christopher Pedicini

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Abstract

An impacting apparatus comprises a motor to actuate a spring striker assembly that includes a gas spring piston that is coupled to a striker. After a sufficient movement of the piston, the piston commences movement and accelerates the spring striker assembly to impact a substrate or object. The motor is coupled to the spring striker assembly through an interrupted drive mechanism such as a chain and sprockets configuration for providing for continuous impacting/driving. The drive mechanism alternatively actuates the piston of the spring striker assembly and decouples from the spring striker assembly to allow pressure or other force to act on the spring piston. The gas spring is replaceable and becomes slightly energized when installed in the apparatus by a gas spring preload means.

Claims17

Dependent claims

An impacting apparatus, the apparatus comprising:

a power source,
a control circuit,
a motor, said motor capable of rotational motion,
a striker cup,
a spring striker assembly, said spring striker assembly comprising a gas spring and striker, said gas spring comprising a chamber and a piston and said striker comprising at least one lifting surface,
a chain assembly, said chain assembly comprising a plurality of sprockets, said sprockets being operatively coupled to said motor, a chain operatively coupled to said plurality of sprockets, said chain comprising a plurality of lifter links disposed along said chain and said sprockets capable of causing the chain to translate, and
a clutch,
a gas spring preload means for installing the gas spring in the apparatus, and
wherein said gas spring preload means energizes the gas spring slightly during installation in the apparatus by providing a force on the gas spring,
wherein when said chain assembly translates, at least one lifter link of said plurality of lifter links engages at least one lifting surface of said striker for a portion of said translation of said chain to increase potential energy in said gas spring and after said chain assembly disengages said spring striker assembly, the potential energy from said gas spring decreases while accelerating the striker to impact said striker cup,
wherein an impact force from said striker is transmitted to said striker cup,
wherein said chain assembly thereafter again engages said spring striker assembly, and
wherein said clutch prevents reverse rotation of the motor when the apparatus is not operating.

10 more elements

An impacting apparatus, the apparatus comprising:

a power source,
a control circuit,
a motor, said motor capable of rotational motion,
a striker cup,
a spring striker assembly, said spring striker assembly comprising a gas spring and a striker, said gas spring comprising a chamber and a piston and said striker comprising at least one lifting surface,
a chain assembly, said chain assembly comprising a plurality of sprockets, said sprockets being operatively coupled to said motor, a chain operatively coupled to said plurality of sprockets, said chain comprising a plurality of lifter links disposed along said chain and said sprockets capable of causing the chain to translate, and
a gas spring preload means for installing the gas spring in the apparatus, and
a sensor, said sensor being operatively coupled to said control circuit and capable of determining the location of at least one of said striker and said striker cup,
wherein said gas spring preload means energizes the gas spring slightly during installation in the apparatus by providing a force on the gas spring,
wherein when said chain assembly translates, at least one lifter link of said plurality of lifter links engages at least one lifting surface of said striker for a portion of said translation of said chain to increase potential energy in said gas spring and after said chain assembly disengages said spring striker assembly, the potential energy from said gas spring decreases while accelerating the striker to impact said striker cup,
wherein an impact force of said striker is transmitted to said striker cup,
wherein said sensor causes said motor to cease operation after said sensor detects that said striker has reached a location.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/648,451Filed 28 Apr 2024 · us provisional application
Priority: 8 Jun 2023
Published: US 2024/0408734 A112 Dec 2024
Granted: 10 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

B25D 11/10
Means for driving the impulse member: comprising a cam mechanism
B25D 9/04
Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated…
B25D 2211/062
Means for driving the impulse member: cam-actuated impulse-driving mechanisms
B25D 2250/375
Use of springs: fluid springs