With Means To Grip And Release Tool In Timed Relation To Impact Patents (Class 173/92)
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Patent number: 8522892Abstract: An apparatus and method of manufacturing the same are disclosed for an impact device with interchangeable tools for applying precise momentum force to an external object. The device includes two elongated members, one of which containing a hollow portion, and a tool head disposed on one side of the first elongated member. The device can be configured to allow the first elongated member to be removably inserted into the second elongated member and to allow the second elongated member to strike the tool head in order to impart force on an external object.Type: GrantFiled: November 13, 2009Date of Patent: September 3, 2013Inventor: Normand Lemelin
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Patent number: 8387487Abstract: A tactical entry tool for creating an entry point through a building structure is provided. The tool includes a shaft portion including a shaft, and a head portion attached to a first end of the shaft. The head portion includes two heads, with each head including a head shaft extending from the shaft to form a ‘Y’ shaped structure and a break head portion attached to the head shaft at an opposite end from which the head shaft is connected to the shaft. Each break head portion includes a plurality of teeth surrounding the perimeter of the break head portion and a plurality of breaker tips extending from the break head portion.Type: GrantFiled: December 1, 2010Date of Patent: March 5, 2013Assignee: J&N Tactical, LLCInventors: Jeffrey Herr, Matt Herr
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Patent number: 7987920Abstract: A drill includes a housing and a motor coupled to an output member by a transmission. The transmission can selectively couple the output member to an output spindle through a low speed output gear or a high speed output gear for rotating the output spindle at a first speed or a second speed, respectively. Alternatively or additionally, a low speed mode can be provided by actuating an electronic switch that limits the speed of the motor. A rotatably fixed hammer member and a rotatable hammer member can be mounted around the output spindle. A mode collar can be rotatably mounted on the housing and around the output member for movement to positions that correspond to various mode of operation, including a low speed mode, a high speed mode, and a hammer-drilling mode. In the hammer-drilling mode, the transmission operates in the high speed mode.Type: GrantFiled: April 26, 2010Date of Patent: August 2, 2011Assignee: Black & Decker Inc.Inventors: James D. Schroeder, Dennis A. Bush, Paul K. Trautner
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Patent number: 7934567Abstract: A driving apparatus is disclosed for planting a vertically oriented shaft into a granular base. The driving apparatus includes an anvil integrally formed at an intermediate location on the shaft. A weight is attached on the shaft, above the anvil, in freely slidable engagement. The shaft is provided with a tapered lower end. With the lower end positioned adjacent to the granular base, the weights may be repeatedly propelled against the anvil, by sliding along the shaft in a hammering motion, to drive the shaft into the base. The shaft may serve to support an article such as a beach umbrella.Type: GrantFiled: December 19, 2008Date of Patent: May 3, 2011Inventor: John Madey
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Patent number: 7934566Abstract: A device for impacting a fastener in one embodiment includes a lever arm pivotable between a first position whereat a flywheel is spaced apart from a drive mechanism and a second position whereat the flywheel can contact the drive mechanism, a lever arm solenoid for pivoting the lever arm between the first position and the second position, a drive mechanism sensor for generating a position signal indicative of the position of the drive mechanism, a timer for generating a timing signal, a memory including program instructions, and a processor operably connected to the memory for executing the program instructions to (i) energize the solenoid to pivot the lever arm to the second position, (ii) de-energize the solenoid based upon the position signal, and (iii) de-energize the solenoid based upon the timing signal.Type: GrantFiled: August 14, 2008Date of Patent: May 3, 2011Assignee: Robert Bosch GmbHInventors: Eric Hlinka, John DeCicco
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Patent number: 7905377Abstract: A device for impacting a fastener in one embodiment includes a drive mechanism, a flywheel pivotable between a first flywheel position whereat the flywheel is not in contact with the drive mechanism and a second flywheel position whereat the flywheel contacts the drive mechanism, a motor operably connected to the flywheel, a trigger movable between a first trigger position and a second trigger position, and a WCE assembly movable between a first WCE position and a second WCE position, the WCE assembly configured such that (i) when the trigger is in the first trigger position and the WCE assembly is in the first WCE position, the WCE assembly mechanically engages the trigger to preclude movement of the trigger out of the first position, and (ii) when the WCE assembly is in the second WCE assembly position, the WCE assembly does not mechanically engage the trigger.Type: GrantFiled: August 14, 2008Date of Patent: March 15, 2011Assignee: Robert Bosch GmbHInventors: Harald Krondorfer, John DeCicco, Eric Hlinka, Chia Sheng Liang
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Patent number: 7717191Abstract: A shift bracket can be mounted on a shift rod for movement between a first, high-speed drilling mode and a second, low-speed drilling mode. Cooperating shift lock surfaces can be associated with the shift bracket and the shift rod, respectively. For example, a groove in the can create a shift lock surface on the shift rod. The shift bracket can be moved into a locked configuration where the cooperating shift lock surfaces can engage each other preventing movement of the bracket out of the high-speed drilling mode. The hammer mode can correspond to the high-speed drilling mode, but not to the low-speed drilling mode. A spring member can bias the bracket toward the locked position. An actuation member can be coupled to the shift bracket to overcome the biasing member and to rotate or perpendicularly move the bracket into an unlocked position. The actuation member can also move the shift member from the first mode to the second mode.Type: GrantFiled: November 21, 2007Date of Patent: May 18, 2010Assignee: Black & Decker Inc.Inventor: Paul K. Trautner
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Patent number: 7686098Abstract: In accordance with the present invention, a chain driven reciprocating hammer is disclosed. The chain driven reciprocating hammer includes a chain system for lifting a ram to a drop point. The chain system includes a plurality of sprockets and a chain with at least one mesh link to mesh with the ram. Additionally, the chain driven reciprocating hammer includes an adjustable tandem release sprocket mechanism. Also, the chain driven reciprocating hammer includes a center and clamping mechanism configured to secure a work input.Type: GrantFiled: February 6, 2009Date of Patent: March 30, 2010Assignee: Pileco Inc.Inventor: Robert Clark Tyer
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Patent number: 7647985Abstract: It is an object of the invention to provide an improvement in ease of operation of a driving mode switching mechanism in a hammer drill. According to the invention, a representative hammer drill includes a driving mode switching mechanism which has an operating part, a first switching member and a second switching member. The operating part can be turned to at least three rotating positions in its circumferential direction, while the operating part can be turned 360° on the rotation axis in the both directions. Thus, the user can select the desired driving mode in the shortest turning distance without passing though an unnecessary driving mode position. Therefore, ease of operation in mode change can be enhanced.Type: GrantFiled: January 22, 2008Date of Patent: January 19, 2010Assignee: Makita CorporationInventors: Masanori Furusawa, Yoshihiro Kasuya
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Patent number: 6932164Abstract: A double-headed tent stake driver and puller is provided for inserting and removing tent stakes, nails and the like. The double-headed tent stake driver and puller includes a slide hammer and a coupler mounted on the distal end of the slide hammer shaft. The coupler has an elongate body with an open end and a hollow core sized to receive the head of the stake or nail intended for use with the present invention. The coupler includes a retractable keeper slidably received within. The keeper provides the twofold benefits of retaining the stake once inserted into the coupler, and presenting a surface for imparting the extraction force upon a stake to be pulled from the ground. The keeper is urged to its closed position by a spring.Type: GrantFiled: August 1, 2003Date of Patent: August 23, 2005Assignee: The United States of America as represented by the Secretary of the Air ForceInventor: Christopher A. Williston
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Patent number: 6910539Abstract: A tool is provided for driving a landscape pin. The tool has a frame, a base, a hammer, and driving device. The frame is sized to house the landscape pin. The base is attached to the frame and has a slot formed therein. The slot is disposed within the frame and sized and shaped to accommodate passage of the landscape pin. The hammer is disposed within the frame and aligned with the slot. The driving device applies force to the hammer to drive the landscape pin from the frame and through the slot.Type: GrantFiled: August 22, 2003Date of Patent: June 28, 2005Inventor: Jon Carter
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Patent number: 5765651Abstract: A novel improvement in a tubular ram device for bi-directional driving of pipe casing, vertically or horizontally, wherein the driving hammer imparts the force to the pipe casing through a bowls-anvil and removable collet, thus allowing driving of sections of pipe casing without removing the tubular ram device or making any physical change to the pipe casing.Type: GrantFiled: April 10, 1997Date of Patent: June 16, 1998Inventor: Gerald T. Sweeney
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Patent number: 5226487Abstract: A self-propelled, pneumopercussive, cyclic action, ground penetrating machine (200) has decreased energy consumption and increased average working velocity compared to conventional machines. This is obtained in part by a valve-operated air-distribution mechanism (203) having separate forward and reverse compressed air supply lines (35, 37), which mechanism (203) does not limit the length of the forward and backward strokes of the striker (202). This mechanism allows the backward stroke chamber (75) to be connected with the atmosphere during the entire forward stroke of the striker (202). This eliminates generation of an air buffer in the backward stroke chamber (75) and, consequently, the striker (202) does not lose part of its kinetic energy before impact.Type: GrantFiled: February 3, 1992Date of Patent: July 13, 1993Assignee: MBS Advanced Engineering SystemsInventor: Michael B. Spektor
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Patent number: 5031706Abstract: A self-propelled, pneumopercussive, cyclic action, ground penetrating machine (200) has decreased energy consumption and increased average working velocity compared to conventional machines. This is obtained in part by a valve-operated air-distribution mechanism (203) having separated forward and reverse compressed air supply lines (35, 37), which mechanism (203) does not limit the length of the forward and backward strokes of the striker (202). This mechanism allows the backward stroke chamber (75) to be connected with the atmosphere during the entire forward stroke of the striker (202). This eliminates generation of an air buffer in the backward stroke chamber (75) and, consequently, the striker (202) does not lose part of its kinetic energy before impact.Type: GrantFiled: February 7, 1990Date of Patent: July 16, 1991Assignee: MBS Advanced Engineering SystemsInventor: Michael B. Spektor
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Patent number: 4759412Abstract: A rock breaking device adapted to be coupled to the lifting arms of a tractor or similar vehicle is disclosed, the device having an upstanding guide tube with a hammer, chisel, and anvil disposed therein. The hammer can be raised within the guide tube by frictional engagement with a drive member and is then allowed to fall by gravitational force to impact the chisel and/or the chisel and anvil, thereby driving the chisel into the surface to be broken. The device has a shock absorber to minimize the force of impact and as a safety feature, cannot be made operational until actually positioned on the surface to be broken.Type: GrantFiled: October 20, 1986Date of Patent: July 26, 1988Inventor: James W. Brazell, II
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Patent number: 4516662Abstract: A rod-clamping device comprises an impact load transmission assembly which includes a housing having a through axial cavity and a system of jamming elements, a rocoil force take up assembly which includes a housing having a through axial cavity, a collar sleeve, and a system of jamming elements, and a resilient element adapted to urge the jamming elements in a direction counter to the forces being exerted, the impact load transmission assembly having a sleeve member, each system of the jamming elements in the two assemblies being forced to the housing and the rod being driven by a separate resilient element.Type: GrantFiled: February 24, 1983Date of Patent: May 14, 1985Inventors: Alexandr D. Kostylev, Jury N. Syryamin, Boris N. Smolyanitsky, Vladimir P. Boginsky, Alexei D. Terskov
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Patent number: 4045969Abstract: A submergible pile driving apparatus is suspended from a string of rigid tubes 12 to minimize twisting during operation, and the tubes also carry conduits 18, 19 for transmitting hydraulic, pneumatic and electrical power to the apparatus. The upper connections to the conduits are via flexible hoses 25, 26 through a coupling piece 20 inserted in the string below its point of suspension at eye 13, and the lengths of the hoses are adapted to the length of the pile 7 to be driven, whereby continuous operation is possible. That is, locking beams 16 may be engaged with a tube flange to take up the weight of the suspended string and apparatus while a further tube is added to the upper end of the string, without interrupting the driving operation.Type: GrantFiled: April 30, 1976Date of Patent: September 6, 1977Assignee: Hollandsche Beton Groep N. V.Inventor: Joost W. Jansz