Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8028615 | Clamping device and a regulating device The invention relates to a clamping device for a rod which moves in an axial translatory or rotating manner. Said clamping device comprises a housing, a clamping sleeve which is axially fixed therein, a tensioning piston which can be displaced in the housing embodie... | 10/04/2011 |
| 7370570 | Fluid pressure cylinder A fluid pressure cylinder can apply a fastening force to an axially movable reciprocating rod. A reciprocating rod 13 is mounted in a case main body 10 so as to be reciprocable in a forward direction and a backward direction, and two lock units 16 | 05/13/2008 |
| 7367396 | Blowout preventers and methods of use Methods and apparatuses for severing a wellbore tubular, the apparatus, in certain aspects, including: a first member movable toward a tubular to be severed; a second member with a second blade disposed opposite to the first member and movable toward the tubular; a ... | 05/06/2008 |
| 7331562 | Blowout preventer with breech assembly A blowout preventer which, in certain aspects, has a main body with a main top, a main bottom, and a main bore therethrough from the main top to the main bottom, at least one breech assembly secured to the main body, ram apparatus movable within the breech assembly ... | 02/19/2008 |
| 7195224 | Blowout preventer and locking mechanism A blowout preventer having a main body, a ram system with ram apparatus, a movement system with movable shaft apparatus connected to the ram apparatus, the ram apparatus movable from a first open-ram position to a second closed-ram position, the movable shaft appara... | 03/27/2007 |
| 7178639 | Locking device A device is provided for clamping a loaded rod (2) with at least one clamping element (3), which is movably mounted on its conical outer periphery in a corresponding conical outer ring (4). The outer ring (4) is thereby axially movable in... | 02/20/2007 |
| 7150793 | Method of reducing materials contained in juice A process system that uses a reduced amount of lime or other base to clarify or purify juice obtained from plant material such as sugar cane, sugar beets, or sweet sorghum. Specifically, apparatus and methods to reduce volatile materials in juice providing a product... | 12/19/2006 |
| 7117706 | Programmable apparatus and method for body panel attachment A method and apparatus for forming attachment pads in an inner body panel for the precise attachment of an outer body panel thereto. The apparatus positions a fixed anvil at a predefined net reference position while a face plate simultaneously “finds” the panel ... | 10/10/2006 |
| 6969042 | Blowout preventer and ram actuator A blowout preventer with a main body; a base releasably connected to the main body, the base having a base space therein, the base having a ram shaft opening; a primary piston movably disposed within the base space; a ram shaft to which the primary piston is connect... | 11/29/2005 |
| 6912947 | Supporting device The invention relates to a supporting device for supporting substrates in a component placement machine including a housing (1), a piston rod (5) arranged in the housing so as to be movable in its longitudinal direction in the housing (1) by pre... | 07/05/2005 |
| 6631670 | Device and a unit for locking the sliding of the rod of a linear actuator The locking device comprises a plurality of rolling wedging members consisting of diablo-shaped rollers with two cylindrical end portions and an intermediate portion which is concave according to a generatrix in the form of an arc of circle whose radius c... | 10/14/2003 |
| 6615703 | Hydraulic or pneumatic cylinder A pneumatic or hydraulic cylinder (10) having a bore (12) cooperating with a piston (18). Extending from the piston (18) is a piston rod (37). There is further provided a pawl (26) which is engageable with the piston (18) to retain the piston (18) at a de... | 09/09/2003 |
| 6612221 | Piston-cylinder device with piston rod locking means A pressure medium activated piston-cylinder device comprises a cylinder with two end walls both having pressure medium communication ports, a piston movably guided in the cylinder and connected to a piston rod which extends out of the cylinder through a s... | 09/02/2003 |
| 6336323 | Brake for a hydraulic motor In a brake (53) for a hydraulic motor (10), a braking piston (66) is added that can move toward and away from fixed friction discs (54) and rotating friction discs (55). A braking passage (73) leads a high-pressure fluid into the braking piston (66) to pr... | 01/08/2002 |
| 6247564 | Automotive suspension locking device An automotive suspension-locking device mounted to a shock absorber having a cylinder and a piston rod, the suspension-locking device includes a brake band provided around the piston rod of the shock absorber for locking and unlocking the shock absorber, ... | 06/19/2001 |
| 6186047 | Device for locking the sliding of the rod of a linear actuator and a linear actuator provided with the device The locking device comprises resilient repulsion means (58) which react between a fixed body (16) and one or more rolling members (42) and which tend to urge these members in the direction of wedging between two wedging surfaces (34, 36) associated with t... | 02/13/2001 |
| 6178870 | Fluid pressure cylinder with a lock mechanism This fluid pressure cylinder with a lock mechanism is adapted to provide, on the lock mechanism cover, an area where valves for controlling the cylinder and lock mechanism can be installed. In the cylinder, a brake shoe grips a piston rod 6 via balls held... | 01/30/2001 |
| 6164185 | Braking device of linear moving operating devices A brake for linear movement devices comprising a device. The brake means includes a bar which extends parallel with the path of movement of the device and which accommodates a pressurizable hose-like element that extends along the bar. The invention is ch... | 12/26/2000 |
| 6152268 | Rod clamp apparatus A rod clamp device having a rod clamp sleeve with a frusto-conical outer surface and an annular cam with a frusto-conical inner surface and an annular ball guide cage arranged to equalize movement of the bearing balls in circumferentially spaced paths alo... | 11/28/2000 |
| 6059353 | Apparatus for releasably securing a vehicle component A securement assembly for reliably locking a vehicle component such as a wheel or a body panel to a vehicle. The securement assembly includes a slotted sleeve that is engageable with an opening of the vehicle component, to lock the component in place. The... | 05/09/2000 |
| 6006647 | Actuator with free-floating piston for a blowout preventer and the like A method and apparatus for operating a fluid actuated actuator between one and another alternate positions provides different forces for locking and unlocking the actuator. The actuator may use the same fluid pressure to operate a primary piston within a ... | 12/28/1999 |
| 5836232 | Cylinder safety lock A safety, fluid-actuated cylinder-and-piston mechanism for use with an article which is movable between first and second positions. The mechanism comprises a conventional, fluid-actuated cylinder-and-piston mechanism and an automatic locking bar. The pist... | 11/17/1998 |
| 5791230 | Rod clamping device for a linear fluid actuator A rod clamp device having a clamp sleeve and a cam member spring biased axially in a direction to actuate the clamp sleeve to a clamp condition, and a clamp release piston that is operable through a mechanical force amplifying mechanism to move the cam me... | 08/11/1998 |
| 5761984 | Braking device for a fluid power actuator A fluid pressure operated braking device for a piston rod. The braking device includes a clamp sleeve and a cam member spring biased axially in a direction to actuate the clamp sleeve to a clamp condition, and a fluid pressure operator that provides a hyd... | 06/09/1998 |
| 5735187 | Pneumatical piston-cylinder unit having a hydraulic control means A pneumatic piston-cylinder unit has a cylinder (1) in which an air piston (4) with a tubular piston rod (5) is reciprocably actuated by compressed air from two main air channels (18, 19). The air cylinder (1) includes an integrated hydraulic control syst... | 04/07/1998 |
| 5697286 | Fluid pressure unit with brake means A motor or pump includes a stator and a rotor supported for rotation with respect to the stator by a bearing arrangement. The rotor has a cylinder block thereon having radial cylinder bores equipped with radially reciprocable pistons. Rollers on the pisto... | 12/16/1997 |
| 5685141 | Lock for nozzle control in the event of hydraulic failure A method is provided for locking jet engine exhaust nozzle position in a hydraulic system having nozzle actuators connected by a synchronization cable. The synchronization cable engages with a conical brake locking mechanism to prevent cable rotation in t... | 11/11/1997 |
| 5662020 | Inchworm type of actuator A forward-moving inching unit and a backward-moving inching unit are built in a casing (1) which is slidable relative to a guide member (b). Each of the inching units is made up of an inching piston (60), a brake piston (61) disposed in a direction opposi... | 09/02/1997 |
| 5575452 | Blowout preventer with ram wedge locks A hydraulically controlled ram actuating mechanism 10 for a blowout preventer controls the opening and closing of a ram block 12 interconnected with a ram 14 movable within a ram housing 26 along ram axis 16. The ram piston 24 and a locking piston 62 are ... | 11/19/1996 |
| 5540135 | Device for clamping an axially movable rod A device for clamping an axially movable rod comprising a housing having a cylindrical inner wall and end walls that slidably support the rod. A pair of annular rod clamp rings in the housing having inner clamping surfaces for engaging the rod and frusto-... | 07/30/1996 |
| 5504297 | Apparatus for electrical resistance spot welding An improved welding apparatus and method of use including a pair of opposed electrodes mounted on arms which are fixed against outward displacement during the application of the welding current. One of the arms includes a pneumatic cylinder for moving an ... | 04/02/1996 |
| 5490443 | Pressure-discharged type retaining system A pressure-discharged type retaining system is designed so that supplying and discharging of a high-pressure fluid permits the relative movement of an annular outer member and an inner member inserted and fitted therein in either or both of axial and circ... | 02/13/1996 |
| 5406879 | Actuator lock An actuator lock is provided to prevent movement of an actuator until the actuator lock is released. A first member of the lock is movable in response to fluid pressure within a chamber to move from a locked position to an unlocked position allowing the a... | 04/18/1995 |
| 5365828 | Pneumatic linear drive comprising a locking mechanism for end positions A linear drive is disclosed comprising a single-acting pneumatic piston cylinder unit, at least one spring which acts against the pneumatic force and loads the piston rod in the direction of one end position, and one form-locking pneumatic locking mechani... | 11/22/1994 |
| 5349894 | Locking hydraulic actuator A method for locking a hydraulic actuator in a predetermined position and a locking hydraulic actuator are provided. The method includes the steps of supplying hydraulic fluid to a forward chamber in the hydraulic actuator, transferring the hydraulic flui... | 09/27/1994 |
| 5222428 | Piston cylinder unit for pressure fluids A piston-cylinder unit for pressure fluids includes a housing bounded by a head piece at each end thereof; a cylinder disposed within the housing; a piston reciprocatingly movable within the cylinder; a pulley having a circumferential outer surface is mou... | 06/29/1993 |
| 5218821 | Pressure intensifier cylinder utilizing air A pressure intensifier drive unit has walls that form a cylinder with an intermediate divider plug separating a working chamber and a pressure intensifying chamber aligned in the cylinder. The working chamber has a working piston and a working piston rod ... | 06/15/1993 |
| 5216942 | Piston lock for power cylinders A power cylinder of the type in which the piston may be locked to maintain am associated tool or clamp in a fixed position. A nut is provided in an end wall of the cylinder and the piston rod of the piston passes through the nut. The initial portion of th... | 06/08/1993 |
| 5205204 | Working cylinder without piston rod and with a braking device, in particular for compressible media The braking device (2) is formed between a force collector (3) and a cylinder casing (1) by way of slider tracks (5) and counter slider tracks (6) and by sliding bodies (7) guiding the slider tracks and counter slider tracks in a working cylinder without ... | 04/27/1993 |
| 5199344 | Lock cylinder for backhoe slide frame A lock cylinder for a backhoe slide frame which provides for a positive lock of the slide frame in selected positions is described. The slide frame is supported on two generally horizontal rails that are vertically spaced, and the lock cylinders mount bet... | 04/06/1993 |
