With Releasable Stop Or Latch Means To Prevent Movement Of Working Member Patents (Class 92/15)
  • Patent number: 11338780
    Abstract: A braking system is provided. The braking system includes a plurality of brake fluid pressure generation devices provided in a front-side storage camber of a vehicle in which automated driving is enabled. The brake fluid pressure generation devices are provided on the same fluid pressure transmission route and include a non-electrically actuated brake pedal unit. The braking system includes an emergency stop button provided in a vehicle cabin, and an emergency brake circuit that generates braking force with use of the brake pedal unit in a non-energized state or in a case of transition to the non-energized state after the emergency stop button is operated.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: May 24, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ikuru Konno, Tetsuya Fujimoto
  • Patent number: 10633103
    Abstract: A propulsion unit for an aircraft is provided. The propulsion unit includes a stationary unit having at least one cowl pivotally mounted on an axis collinear with a longitudinal axis of the propulsion unit between an operating position or a maintenance position allowing access to the turbojet engine for regular maintenance operations and irregular maintenance operations. The maintenance position for irregular maintenance operations includes an opening angle of the cowl that is greater than the opening angle of the cowl to carry out regular maintenance operations. The propulsion unit further includes at least one cylinder and at least one safety connecting rod secured to the cowl and stationary unit.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: April 28, 2020
    Assignee: SAFRAN NACELLES
    Inventors: Jean-Philippe Joret, Emmanuel Lesteven, Vincent Peyron, Patrick Boileau
  • Patent number: 10626676
    Abstract: A drill bit comprises a first and a second body received within the first body. Each of the first body and second body has a respective crown, each crown having an inner and an outer operative circumference. The outer operative circumference of the second body and the inner operative circumference of the first body can define a first volume that can receive a tubular core sample. The second body can define a break surface that breaks the tubular core sample into core pieces. The drill bit can be employed in a borehole with a reverse circulation system that pumps fluid around an outer surface of the bit, and returning fluid can carry the core pieces out of the borehole.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: April 21, 2020
    Assignee: BLY IP INC.
    Inventors: Christopher L. Drenth, Robert Andrew Corona
  • Patent number: 10578135
    Abstract: In order to secure a reached extension position of a piston rod (22, 22?) of an in particular multi stage operating cylinder device (100) with at least one operating cylinder unit (50) not only through the operating pressure in the cylinder (1, 1?) of the operating cylinder unit (50) but additionally mechanically, a mechanical safety through interlocking safety elements (4a, b) in the interior of the operating cylinder device (100) is provided which is activated exclusively by the operating pressure in the first pressure cavity and disengaged by a pressure in a second operating cavity.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: March 3, 2020
    Inventor: Henning Fuhrmann
  • Patent number: 10533585
    Abstract: A method for operating a telescopic device and the elongated telescopic device per se comprises a support element formed to encompass first and second telescopic element mounted so as to be telescopically slidable relative each other in a longitudinal direction; the support element comprises a support element fluid actuator assembly; the first telescopic element is arranged to encompass the second telescopic element and comprises a first fluid actuator assembly. The support element fluid actuator assembly is fixed to an interior portion of the support element and is arranged for engagement or disengagement to a first envelope surface of the first telescopic element and wherein the first fluid actuator assembly is fixed to a first interior portion of the first telescopic element and is arranged for engagement or disengagement to a second envelope surface of the second telescopic element.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: January 14, 2020
    Assignee: SAAB AB
    Inventor: Magnus Landberg
  • Patent number: 9133831
    Abstract: A hand pump includes a piston slidably engaged in a housing and coupled to a piston rod, a handle having a compartment for receiving the piston rod at an inwardly folding position and having a guiding passage formed in one of the two end portions of the handle, a stud extended from a middle portion of the handle and having a slot communicating with the passage of the handle for allowing the piston rod to be rotated relative to handle between the inwardly folding position and an outwardly working position where the piston rod is engaged in the stud and perpendicular to the handle, and a control ferrule is attached onto the piston rod for anchoring the piston rod to the housing at the outwardly working position.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: September 15, 2015
    Assignee: Beto Entineering & Marketing Co., Ltd.
    Inventor: Lo Pin Wang
  • Publication number: 20150122116
    Abstract: In a bent axis type axial piston motor, so as to smoothly rotate a drive shaft without lowering motor efficiency and brake the drive shaft if necessary, when the drive shaft is rotated through a cylinder block by causing piston rods to reciprocate, relative rotation between separate plates and friction plates is allowed by removing a pressing force applied by a braking piston, and when the separate plates and the friction plates are pushed to a brake force receiving plate by the braking piston, relative rotation between the separate plates and the friction plates is restrained and thus the drive shaft is braked. Restriction members are disposed between a casing and the brake force receiving plate so as to restrain the brake force receiving plate from moving relative to the casing along the axis of the drive shaft.
    Type: Application
    Filed: October 11, 2012
    Publication date: May 7, 2015
    Inventors: Takashi Hori, Teppei Asano, Masayuki Hosaka
  • Patent number: 9010236
    Abstract: A linear actuator includes a cylinder main body, which is provided at one end thereof with a lock mechanism capable of restricting displacement of a slide table. The lock mechanism is equipped with a lock plate and a sub-piston. The lock plate is rotatable toward a side of the slide table by an elastic force of a spring, inserted into an insertion groove, and restricts displacement of the slide table. The sub-piston is displaced by a pressure fluid supplied to a supply port, and releases a displacement restricted state of the slide table by the lock plate.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: April 21, 2015
    Assignee: SMC Kabushiki Kaisha
    Inventors: Koichiro Ishibashi, Motohiro Sato, Toshio Sato
  • Publication number: 20150090112
    Abstract: A bicycle hydraulic operation device comprises a bracket, a hydraulic cylinder, a piston a lever, and a first biasing member. The bracket includes a gripping portion configured to be gripped by a rider. The piston is disposed within the hydraulic cylinder and movable between an initial position and an actuated position. The lever is pivotally mounted to the bracket around a first axis and operatively coupled to the piston to move the piston in response to pivotal movement of the lever from a rest position to an operated position. The first biasing member is operatively coupled to the piston and the lever outside the hydraulic cylinder such that the first biasing member biases the piston toward the initial position and biases the lever toward the rest position.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 2, 2015
    Applicant: SHIMANO INC.
    Inventors: Keiji MATSUEDA, Masahiro NAKAKURA
  • Publication number: 20140339010
    Abstract: A hood lifting mechanism includes a housing and a piston assembly movably mounted in the housing. The piston assembly has a groove formed therealong. A retainer is coupled to the housing so as to form a cavity therebetween. A locking member is positioned in the cavity so as to be engageable by the groove, for preventing motion of the piston assembly with respect to the housing.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 20, 2014
    Applicant: TK Holdings Inc.
    Inventors: Larry M. Wilmot, Rachid Hammoud, Joshua D. Van Hooser, Steven R. Rehak, Jeremy M. Henck
  • Publication number: 20140260852
    Abstract: A pneumatic cylinder associated with a table saw includes a housing, a charge, and a piston assembly. The housing defines a cavity and is supported by a frame of a table saw. The charge is located within the cavity. The piston assembly is located within the cavity and includes an attachment structure engaged to the housing and a piston head releaseably connected to the attachment structure and in response to activation of the charge the piston head is configured to (i) disconnect from the attachment structure, and (ii) move away from the attachment structure. A swing arm of the table saw is configured to move from a raised position to a lowered position in response to movement of the piston head.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicants: Robert Bosch GmbH, Robert Bosch Tool Corporation
    Inventor: Eric Laliberte
  • Publication number: 20140157977
    Abstract: A cylinder mechanism includes a cylinder body assembly, a piston assembly, and a grasping assembly. The cylinder body assembly includes a cylinder body. The cylinder body defines a receiving cavity, a first gas hole, and a second gas hole. The first and second gas holes communicate with the receiving cavity. The piston assembly includes a piston movably received in the receiving cavity, a guiding shaft movably received in the receiving cavity, and a limiting member. A first end of the guiding shaft is fixed to the piston, and a second end defines a receiving groove. A pair of guiding hole is defined in the guiding shaft. The grasping assembly includes a pushing member movably received in the guiding shaft, a pin received through the guiding holes, and a latching member movably received in the guiding shaft and capable of protruding outward.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 12, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD
    Inventors: WEN-TAO WANG, XIAO-BING XU, JIAN-HUA YONG, MIAO-AN OU-YANG, JIAN-BIN KONG
  • Patent number: 8739682
    Abstract: A pneumatic actuator is provided for an active hood and includes a cylinder and a piston, which is movable in the cylinder between a lower terminal position, in which the volume of a chamber delimited by piston and cylinder, which may be impinged using compressed gas, is minimal, and an upper terminal position, in which the volume of the chamber is maximal. The piston is lockable in the lower terminal position by a detent body engaging in first recesses of the cylinder and the piston. A slider is displaceable by impingement using the compressed gas out of an idle position, in which it fixes the detent body in the first recesses, into a triggering position, in which a second recess of the slider overlaps with one of the first recesses and is capable, together with a single one of the first recesses of accommodating the detent body.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: June 3, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Bernd Dreyer, Joachim Schaefer, Erik Wiesinger
  • Patent number: 8739678
    Abstract: The triggered stroke actuator comprises a cylinder (12) housing a movable assembly constituted by a piston (13), a rod (16) projecting from one end of the cylinder (12), and a slidable element (17) that is movable inside the cylinder (12). The actuator also includes means for propelling the piston (13) in response to a trigger command, and a return braking arrangement. The return braking arrangement is constituted by at least one ball (18) housed in an annular cavity (19) defined by the inside surface of the cylinder (12) and by the slidable element (17), a return spring (22) connecting the slidable element (17) to the piston (13), and a link element (23) connecting the ball (18) to the piston (13). The ball (18) is positioned by the link element (23) in a first segment (20) of the annular cavity (19) when the return spring (22) is relaxed, and in a second segment (21) of decreasing radial extent when the return spring (22) is compressed.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: June 3, 2014
    Assignee: Herakles
    Inventors: Evrard Borg, Eric Laspesa, Jean-Paul Nadeau
  • Patent number: 8726622
    Abstract: A safety stand is provided for minimizing the effect of hydraulic failure in an agricultural harvester. The safety stand has a series of notches along a longitudinal edge of the safety stand which are designed to accept and received a protrusion affixed to a cylinder of a hydraulic cylinder which raises and lowers a feeder arm. When the feeder arm is raised, the hydraulic cylinder is in the full upright position, the safety stand can be lowered such that the protrusion enters and is held within a notch to prevent accidental downward movement of the feeder arm. If the notch fails, or the safety stand is not properly engaged, the longitudinal edge of the safety arm is allowed to follow the protrusion, until a subsequent notch is reached, which then engages the protrusion, safely stopping the downward path of the feeder arm.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: May 20, 2014
    Assignee: CNH Industrial America LLC
    Inventors: Bradley J. Wagner, Christopher R. Aurand, Herb M. Farley, John Donald Watt
  • Publication number: 20140102290
    Abstract: A first adjustable stop on a jack member selectively adjusts an incline stop gap while a second adjustable stop on a support element selectively adjusts a decline stop gap. Stop surfaces on the first adjustable stop and the support element may define the incline stop gap, while stop surfaces on the second adjustable stop and the first adjustable stop may define the decline stop gap. A number of turns of a stop needed to effect a desired of adjustment may be determined using a pitch, lead, and/or number of starts of threads used to mount the stops.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 17, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Matthew Stephen Casavant, Kenneth Damon Black
  • Publication number: 20140102291
    Abstract: A hydraulic fluid power cylinder assembly 10 includes a cylinder chamber 14, a piston 15, a piston rod 19 and an end cap 21. End cap 21 includes a drift stop chamber 24 and a drift stop blocking surface 25. Chamber 24 is in open fluid pressure communication with chamber 14 under all conditions. Piston 15 includes a piston body portion 16 and a drift stop body portion 29. Drift stop body portion 29 includes a drift stop blocking member 31 and a positioning surface 34 for preventing the blocking member 31 from contacting the walls of cavity 24 and cylinder chamber 14 when disengaged from blocking surface 25. In one position drift stop body portion 29 is received within drift stop cavity 24, and blocking member 31 engages blocking surface 25 to prevent unintended movement of piston 15.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 17, 2014
    Inventors: Garrett Maurer, Romell Alaman
  • Patent number: 8668038
    Abstract: A lost motion piston assembly comprising a lost motion cavity formed within a piston and a lost motion piston disposed within the lost motion cavity. The lost motion piston forms a sealed gas cavity. The sealed gas cavity contracts when the actuator is extended under pressure into the cylinder space and expands under pressure when the actuator is retracted by relieving pressure in the cylinder space.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: March 11, 2014
    Assignee: Actuant Corporation
    Inventors: Borivoj Krobot, Leonard D. Yoder
  • Publication number: 20140060318
    Abstract: A safety pin is provided and which comprises a cylinder having a first port and a second port arranged in longitudinal ends. A piston is moveably disposed within the cylinder and dividing the cylinder into a first chamber in communication with the first port and a second chamber in communication with the second port. A dowel pin is securely attached to the piston. An adjusting device regulates the position of the piston along a position perpendicular to the first and second directions. And a supplying device directing compressed air to the first chamber through the first port, or directing the compressed air to the second chamber through the second port so as to push the piston and the dowel pin to move along the first direction so as for performing locking and unlocking the equipment. By this arrangement, equipment can be readily locked up and unlocked by the provision of the safety pin.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhenhua Guo, Chunhao Wu, Kunhsien Lin, Zenghong Chen, Minghu Qi, Yunshao Jiang
  • Patent number: 8535007
    Abstract: A hydraulic lock system includes a spring pack defined between a female spring support and a male spring support, the spring pack includes a multiple of serrated washers, each of which defines an inner diameter which is greater than a diameter of the actuator rod and an outer diameter greater than an inner diameter of the cylinder.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: September 17, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Robert H. Perkinson
  • Publication number: 20130205988
    Abstract: The invention relates to a piston, in particular, for use as a discharge and/or locking piston of a cartridge comprising a base body (25) having a lateral wall provided with sealants (14, 17) and a front-end wall having a vent (21). A locking element (18) is mounted rotatable in the vent (21), whereby a venting channel (23, 24) can be opened or closed by the relative rotation of the locking element (18) in the vent (21). Additionally, the invention relates to a cartridge configuration having such a piston.
    Type: Application
    Filed: October 26, 2011
    Publication date: August 15, 2013
    Inventors: Alexander Bublewitz, Jens-Peter Reber
  • Patent number: 8499681
    Abstract: A fluid displacement device, particularly for use of the device to pressurize balloon catheters, or the like. The device includes a plunger which is displaceable through a housing, and an actuating mechanism which engages the plunger. The actuating mechanism includes a nut member that is biased into engagement with a threaded portion of the plunger. The device has a press-to-release feature wherein the plunger is instantly releaseable by simply depressing a control surface to overcome a restorative spring force. Subsequently, the plunger can be translated using macro movements (i.e., by pushing or pulling the plunger).
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: August 6, 2013
    Assignee: Atrion Medical Products, Inc.
    Inventors: Rowland W. Kanner, Richard M. Davis, Brian A. Roberts
  • Patent number: 8316758
    Abstract: A pneumatic actuator is provided for an active hood and includes, but is not limited to a cylinder and a piston, which is movable in the cylinder between a lower terminal position, in which the volume of a chamber delimited by piston and cylinder, which may be impinged using compressed gas, is minimal, and an upper terminal position, in which the volume of the chamber is maximal. The piston is lockable in the lower terminal position by a detent body engaging in first recesses of the cylinder and the piston. A slider is displaceable by impingement using the compressed gas out of an idle position, in which it fixes the detent body in the first recesses, into a triggering position, in which a second recess of the slider overlaps with one of the first recesses and is capable, together with a single one of the first recesses of accommodating the detent body.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: November 27, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Bernd Dreyer, Joachim Schäfer, Erik Wiesinger
  • Publication number: 20120260797
    Abstract: A linear actuator includes a cylinder main body, which is provided at one end thereof with a lock mechanism capable of restricting displacement of a slide table. The lock mechanism is equipped with a lock plate and a sub-piston. The lock plate is rotatable toward a side of the slide table by an elastic force of a spring, inserted into an insertion groove, and restricts displacement of the slide table. The sub-piston is displaced by a pressure fluid supplied to a supply port, and releases a displacement restricted state of the slide table by the lock plate.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 18, 2012
    Applicant: SMC Kabushiki Kaisha
    Inventors: Koichiro ISHIBASHI, Motohiro Sato, Toshio Sato
  • Patent number: 8196507
    Abstract: A pneumatic actuator is provided for an active bonnet. The pneumatic actuator includes, but is not limited to a cylinder and a piston transferable from a rest position to an extended position and lockable in its rest position. The piston, in its rest position, is held pre-stressed by a spring element in the direction of the extended state.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: June 12, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Joachim Schäfer, Volker Scheuch, Werner Schmidt, Martin Zilg
  • Patent number: 8191457
    Abstract: A fluid displacement device, particularly for use of the device to pressurize balloon catheters, or the like. The device includes a plunger which is displaceable through a housing, and an actuating mechanism which engages the plunger. The actuating mechanism includes a nut member that is biased into engagement with a threaded portion of the plunger. The device has a press-to-release feature wherein the plunger is instantly releaseable by simply depressing a toggle lever of the nut member to overcome a restorative spring force. Subsequently, the plunger can be translated using macro movements (i.e., by pushing or pulling the plunger).
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: June 5, 2012
    Assignee: Atrion Medical Products, Inc.
    Inventors: Rowland W. Kanner, Richard M. Davis
  • Publication number: 20120125191
    Abstract: Actuator (V) for opening an aircraft nacelle cowl (7), comprising a dead travel device (19), characterized in that it comprises means (42a, 42b, 43) for blocking the dead travel device (19) when this actuator (V) is extended.
    Type: Application
    Filed: June 25, 2008
    Publication date: May 24, 2012
    Applicant: AIRCELLE
    Inventors: Pierre Moradell-Casellas, Stephane Lederle
  • Publication number: 20120011848
    Abstract: A triggered-stroke actuator with its piston being held stationary in an initial position prior to triggering. The piston (13) is installed in the body (12) facing propulsion means (15) and a locking arrangement (19) that includes a latch (30) and at least one flexible tongue (23) attached to the periphery of the piston and having a hook (25) engaged with an internal abutment, the latch being moved at the beginning of triggering.
    Type: Application
    Filed: October 21, 2009
    Publication date: January 19, 2012
    Applicant: SNPE MATERIAUX ENERGETIQUES
    Inventors: Evrard Borg, Eric Laspesa, Jean-Paul Nadeau
  • Publication number: 20110088548
    Abstract: A device for the pulsed release of an amount (3) of fluid that is stored in a storage housing (2), in particular for implementing a start-stop function in automatic transmissions, with a piston (5) that is supported against a first energy storage device (4) and that, with the capacity to move within the storage housing (2), limits in conjunction with the latter the amount (3) of fluid that can be held and that, when triggered by an actuation means (6) and released by a locking means (7), pushes the amount (3) of fluid out of the storage housing (2) in a pulsed manner, the locking means (7) having individual catch means (8) that in the locked position keep the piston (5) in its pretensioned position, and that, when actuated by the actuation means (6), release the piston (5) in a release position, is characterized in that in any travel position of the piston (5), the catch means (8) are at least partially in contact with the inside wall of the piston (5) facing them, and that for locking of the piston (5), the
    Type: Application
    Filed: January 12, 2010
    Publication date: April 21, 2011
    Inventors: Norbert Weber, Norbert Lange
  • Publication number: 20100178100
    Abstract: A lockable joint such as a lockable ball-and-socket joint comprising a first arm (14) having a swivel head (30) and a socket (32), the swivel head (30) being pivotably mounted to the socket (32), and a locking device (90) arranged for locking the swivel head (30) with respect to the socket (32), the locking device (90) having a piston (70?), a pressure gas source (64), and an actuating device (92) arranged for reversibly disconnecting the piston (70?) from the pressure gas source (64) where in the pressure gas source is a gas cartridge (64).
    Type: Application
    Filed: October 3, 2007
    Publication date: July 15, 2010
    Inventors: Helmut Fricke, Lawrence E. Griffith
  • Publication number: 20090266228
    Abstract: A locking piston assembly (100) is provided according to the invention. The locking piston assembly (100) includes a piston chamber (107), a piston rod (106) configured to be substantially extended from and substantially retracted into the piston chamber (107), and a piston head (108) coupled to the piston rod (106) and configured to move reciprocally in the piston chamber (107). The locking piston assembly (100) further includes at least one lock (120) configured to mechanically lock the piston head (108) and the piston rod (106) in at least a substantially fully extended position. The lock (120) is configured to unlock the piston head (108) and the piston rod (106) in a presence of a pressurized fluid provided to retract the piston rod ( 106). The pressurized fluid is introduced into the piston chamber (107) and the piston rod (106) is retracted only after the lock (120) is unlocked.
    Type: Application
    Filed: July 28, 2006
    Publication date: October 29, 2009
    Inventors: Ulrich Teschke, Martin Engels
  • Publication number: 20090223360
    Abstract: An actuator includes a cylinder, a piston rod which moves forwards within the cylinder and a lock mechanism for restricting a backward movement of the piston rod that has moved forwards. The piston rod includes a piston portion and a support rod portion which is made to extend from the piston portion. The lock mechanism includes an annular elastic element which is disposed with an inner circumferential edge made to project further radially inwards than an inner circumferential surface of the cylinder and a groove which is disposed so as to extend along an outer circumferential surface of the piston portion for the annular elastic element to be fitted therein.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 10, 2009
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Masashi Aoki, Hajime Kitte, Hirokazu Matsuura, Takeki Hayashi
  • Publication number: 20090113779
    Abstract: The invention is directed towards an elevation adjustment mechanism which has a mechanism for coarsely adjusting the pitch rotation comprising a lever actuated clamping assembly and a mechanism for finely adjusting the pitch rotation comprising a threaded rod mechanism.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 7, 2009
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Daniel B. Shipman, Joe B. Dunning, Ernest E. Creamer, Ron Smith, Steven J. Koch
  • Publication number: 20090095151
    Abstract: A pneumatic actuator is provided for an active bonnet. The pneumatic actuator includes, but is not limited to a cylinder and a piston transferable from a rest position to an extended position and lockable in its rest position. The piston, in its rest position, is held pre-stressed by a spring element in the direction of the extended state.
    Type: Application
    Filed: February 26, 2007
    Publication date: April 16, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Joachim Schafer, Volker Scheuch, Werner Schmidt, Martin Zilg
  • Publication number: 20080022849
    Abstract: The invention relates to a locking device for linear actuators, in particular for fluid-actuated adjusting devices, with a piston rod mounted in an axially displaceable manner relative to a receiving device. The object of the invention is to provide a locking device for linear actuators, with which a secure locking is possible over the entire travel path of the linear actuators. This is attained in that the piston rod has a hollow space extending in the axial direction, in which form-fitting devices are arranged distributed in the axial direction, that form-fitting elements corresponding to the form-fitting devices are arranged in the piston rod in a radially displaceable manner, which elements are mounted in an axially stationary manner relative to the receiving device, and that an actuating device that displaces the form-fitting elements radially is assigned to the form-fitting elements.
    Type: Application
    Filed: August 11, 2005
    Publication date: January 31, 2008
    Applicant: DEUTSCHES ZENTRUM FUER LUFT-UND RAUMFAHRT E.V.
    Inventors: Milan Kamenz, Gunther Alvermann
  • Patent number: 7316177
    Abstract: A method and apparatus is provided that includes a hand pump having a handle locking mechanism, a counter bored nut, pivoting links, and unloading valve assembly. The unloading valve assembly allows a pump operator to pump a larger volume of hydraulic fluid and/or to pump to higher pressures in first stage operation than a conventional pump which employs a direct-acting relief valve. The unloading valve also decreases the effort required to pump the handle during second stage operation. The handle locking mechanism allows the pump handle from moving during transporting and storing of the hand pump. The counter bored nut allows for more reservoir room than conventional hand pumps. The pivoting link allows for greater leverage of the handle during pumping.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: January 8, 2008
    Assignee: SPX Corporation
    Inventors: Travis Bakker, Michael Landrum, Douglas Miller
  • Patent number: 7299739
    Abstract: A fluid pressure cylinder has a piston rod 18 fixed to a piston 26 and projecting outside a cylinder body 23. A lock surface 43 inclining to a radial direction of the piston rod 18 is formed in an engagement member 31 provided in the piston rod 18. A lock rod 35 reciprocating in an about right-angle direction to the piston rod 18 is built into a lock cylinder 33 provided in the cylinder body 23. The lock rod 35 is provided with: a large-diameter section 35a fitted into a guide hole 36 formed in the lock cylinder 33; and a slide contact section 37 provided in the large-diameter section 35a via a constriction section 35b. The slide contact section 37 contacts with a radial-inner portion of the lock surface 43 when the lock rod 35 comes nearest to the piston rod 18.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: November 27, 2007
    Assignee: Koganei Corporation
    Inventors: Akio Nakata, Masakazu Tetsuka
  • Patent number: 7290479
    Abstract: A rodless slide assembly is provided illustratively having a longitudinally-extending cylinder, a carriage, a stop assembly, and a catch assembly. The longitudinally-extending cylinder includes first and second ends and a path of travel extending therebetween. The carriage is slidable on the path of travel on the cylinder between the first and second ends. The stop assembly includes a stop block and a stabilizer. The stop assembly is coupled to the carriage and the stabilizer is located between the stop block and the carriage. The catch assembly comprises a catch bar and an actuator assembly. The catch bar is located adjacent the path of travel of the carriage.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: November 6, 2007
    Assignee: PHD, Inc.
    Inventors: Matthew R. Williams, Cale M. Reese, Clyde W. Sprowl
  • Patent number: 7290478
    Abstract: A rodless slide assembly is provided illustratively having a longitudinally-extending cylinder, a carriage, a stop assembly, and a catch assembly. The longitudinally-extending cylinder comprises first and second ends and a path of travel extending therebetween. The carriage is slidable on the path of travel on the cylinder between the first and second ends. The stop assembly comprises a stop block and is coupled to the carriage. In one embodiment the catch assembly includes a catch bar and an actuator assembly. The catch bar is located adjacent the path of travel of the carriage. The actuator assembly selectively moves the catch bar to engage the stop block and stop the carriage when the carriage is positioned at a selected location on the path of travel.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: November 6, 2007
    Assignee: PHD, Inc.
    Inventors: Matthew R. Williams, Cale M. Reese, Clyde W. Sprowl
  • Patent number: 7287457
    Abstract: A fluid actuator and retainer assembly, such as a master cylinder assembly for a vehicular braking system, includes a housing having a groove, a cylinder provided within the housing, and a piston assembly. The piston assembly includes a piston disposed within the cylinder for sliding movement relative thereto and a rod connected to the piston and extending from the cylinder and the housing. A retaining structure includes a rod engagement surface in contact with the rod, a plurality of engagement fingers extending from the rod engagement surface, and a detent extending from each of the plurality of engagement fingers into cooperation with the groove to retain the piston assembly in position relative to the cylinder housing.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: October 30, 2007
    Assignee: Kelsey-Hayes Company
    Inventors: Glenn R. Gualdoni, Gary King
  • Patent number: 7285423
    Abstract: A seal mechanism, apparatus and method are suggested for confining a chemical reaction in a reaction vessel that is accessible through a self-sealing diaphragm. A movable plunger is reversibly operable between a retracted position where the diaphragm is accessible for injection and/or extraction of reagents, and an operational position wherein the plunger is controlled to apply an external pressure in direct contact with the self-sealing diaphragm.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: October 23, 2007
    Assignee: Biotage AB
    Inventor: Johan Urban Ingemar Ulin
  • Patent number: 7281464
    Abstract: A system for selectively controlling movement of a piston between first and second positions, the system comprising a controller selectively actuated to enable fluid communication between a device and a source of pressurized fluid, a control valve for enabling fluid communication between a control system and the source of pressurized fluid, a sensing system for identifying the first and second positions, a monitoring valve selectively actuated by the at least one sensing valve for exhausting the flow of pressurized fluid, wherein the monitoring actuator remains actuated until the control valve is deactuated, and a latching mechanism selectively capable of engaging the piston when a loss of pressurized fluid has been identified.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: October 16, 2007
    Assignee: Ross Operating Valve Company
    Inventors: Charles A. Weiler, Jr., Neil Russell, Robert N. Winsand
  • Patent number: 7240605
    Abstract: The invention concerns a pneumatic and/or hydraulic actuator. The pneumatic and/or hydraulic actuator is one in which the run of a driving shaft, which is pneumatically operated by a piston, can vary on the basis of the insertion in the body of the actuator or at least one cylinder, so that the body of the cylinder forms a barrier along the run of the driving shaft causing the stoppage of the shaft itself.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: July 10, 2007
    Assignee: Camozzi S.p.A
    Inventor: Massimo Glisenti
  • Patent number: 7237471
    Abstract: A continuously lockable adjustment device for immobilizing elements which are movable relative to each other includes a stepped cylinder having a first cylinder step and a second cylinder step, the second cylinder step having a larger cross-sectional area than the first cylinder step, a stepped piston having a first piston step guided in the first cylinder step and a second piston step guided in the second cylinder step, and a piston rod connected to the piston opposite the first piston step and extending sealed off out an end of the cylinder. The cylinder has a first working space and a second working space separated by the piston and filled with a working fluid in which the piston can be displaced axially, thereby displacing working fluid from one working space to the other working space.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: July 3, 2007
    Assignee: Stabilus GmbH
    Inventors: Rolf Mintgen, Paul Muders, Wilhelm Schwab
  • Patent number: 7013792
    Abstract: A piston rod is formed in a diameter smaller than an inner diameter of a hollow cylinder. The piston rod is inserted in the cylinder so as to be relatively movable in an axial direction of the cylinder. A locking mechanism comprises a first surface provided on the inner surface of the cylinder, a plurality of second surfaces arranged in an axial direction of the piston rod and parallel to one another, and a locking member. The first surface is so inclined that the inside diameter of the cylinder gradually increases toward one end of the cylinder. Each second surface is so inclined that the diameter of the piston rod gradually increases to the one end of the piston rod. The locking member is held between the first surface and any one of the second surfaces to lock relative movement of the piston rod with respect to the cylinder.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: March 21, 2006
    Assignee: NHK Spring Co., Ltd.
    Inventor: Hiroyoshi Yamaguchi
  • Publication number: 20040211313
    Abstract: A piston rod is formed in a diameter smaller than an inner diameter of a hollow cylinder. The piston rod is inserted in the cylinder so as to be relatively movable in an axial direction of the cylinder.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 28, 2004
    Applicant: NHK SPRING CO., LTD.
    Inventor: Hiroyoshi Yamaguchi
  • Patent number: 6663361
    Abstract: A chemical injection pump for injecting chemicals into subsea system at depths up to 10,000 feet is described which uses a minimum of moving parts by employing an actuator, for instance a solenoid, to power a double acting actuator rod and plungers thereon. The pump would generate low pressures and low fluid volumes, but be more durable and reliable than conventional rotating pumps operating under subsea conditions.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: December 16, 2003
    Assignee: Baker Hughes Incorporated
    Inventors: Kristopher T. Kohl, Charles Mitchell Means
  • Patent number: 6602061
    Abstract: A hand pump includes a head, a cylinder, a piston rod, a first handle, and a second handle. The head includes a valve-engaging portion for engaging with a valve of an article to be inflated. A first end of the cylinder is connected to the head. A piston is securely mounted to a first end of the piston rod for reciprocation in the cylinder. The first handle is securely attached to a second end of the piston rod that extends beyond a second end of the cylinder. The second handle is attached to the head to provide an auxiliary grip.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: August 5, 2003
    Inventor: Louis Chuang
  • Publication number: 20030136255
    Abstract: An actuator holding structure for a vehicle has: a first retainer attached to the housing; a second retainer attached to the piston rod; and, a plurality of protruded engaging portions formed on the outer peripheral surface of the housing, wherein the piston rod is held in the retracted condition while the first retainer and the second retainer are engaging together, and when the first retainer is released from engaging with the second retainer, and the piston rod is allowed to be extended and retracted, wherein the first retainer includes a first lateral belt for peripherally holding a part of the housing by engaging with the protruded engaging portions while the first retainer and the second retainer are engaging together, and a second lateral belt for peripherally holding the other part of the housing opposite to the first lateral belt so as to be latched and unlatched.
    Type: Application
    Filed: January 17, 2003
    Publication date: July 24, 2003
    Inventors: Kazuhiro Kosugi, Shinji Oka, Toru Ishino
  • Publication number: 20030110936
    Abstract: A tire pump includes a reciprocal member having a first end and a second end, and a handle having a first end and a second end. The first end of the handle is mounted on the second end of the reciprocal member. The handle includes a switch member mounted on the first end thereof. The switch member may be operated by a user's one hand only so that the switch member may be moved between a first position where the second end of the reciprocal member is fixed on the first end of the handle, and a second position where the second end of the reciprocal member may be retracted into the first end of the handle.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 19, 2003
    Inventor: Louis Chuang