Piston Drive Patents (Class 198/750.7)
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Patent number: 9434550Abstract: A supporting means of a trough has a lever assembly with a base lever and a vibration lever respectively rotatably connected together at lower ends thereof by a common connecting shaft. The base lever is rotatably supported through a first shaft by a frame. The vibration lever is rotatably connected through a second shaft with the trough. The vibration lever is swingably held through spring means by the base lever. The direction in which the object on the trough is conveyed is reversed by rotating the lever assembly partly around the first shaft of the base lever so as to change the angle of inclination of the lever assembly with regard to the lengthwise direction of the trough between a first angle “A” at which the object on the trough moves in a certain direction and a second angle “B” at which the object moves in an opposite direction.Type: GrantFiled: April 29, 2015Date of Patent: September 6, 2016Assignee: TIF CORPORATIONInventor: Takahiro Matuura
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Patent number: 9327908Abstract: Hydraulic cylinders of a conveying apparatus includes piston rods that extend in parallel, pistons, and cylinder tubes that have an internal pressure chamber partitioned into first and second pressure chambers. A pair of the hydraulic cylinders are arranged in parallel with an interval in a width direction of a conveyance path. The cylinder tube slidingly moves to the first pressure chamber side by supplying a hydraulic pressure to the first pressure chamber and discharging a hydraulic pressure from the second pressure chamber, and the cylinder tubes slidingly move to the second pressure chamber side by supplying a hydraulic pressure to the second pressure chamber and discharging a hydraulic pressure from the first pressure chamber. The workpiece is supported by a pair of the cylinder tubes.Type: GrantFiled: August 8, 2014Date of Patent: May 3, 2016Assignee: MIURA CO., LTD.Inventor: Takao Miura
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Patent number: 8561788Abstract: A differential impulse conveyor (10) is provided for moving goods, including a tray (12) having a tray floor (14) supporting goods, with the tray movable in a forward direction and a backward direction. A drive motor (16) is provided for moving the tray floor in the forward direction and the backward direction. The tray floor includes plurality of dimples (20) each projecting upward from an adjacent product supporting surface (22) of the tray floor. Each dimple (20) includes an upwardly projecting pusher portion (24) for pushing goods forward during the forward movement of the tray, and a tapered ramp portion (26) extending upward from the product supporting surface and engaging the pusher portion for moving goods in front of the pusher portion.Type: GrantFiled: August 25, 2011Date of Patent: October 22, 2013Inventors: Thomas G. Knodell, Jr., Blake Svejkovsky, Kenneth C. Petri, Paul A. Svejkovsky
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Patent number: 8286784Abstract: A conveyor assembly includes a mounting assembly for moving a material to be conveyed. The mounting assembly is movable in a first direction and in a second direction opposite the first direction. At least one resiliently deformable spring member is provided for storing energy therein responsive to a motion of the mounting assembly in the second direction. Energy stored in the spring member is usable to urge the mounting assembly and the associated material in the first direction.Type: GrantFiled: April 27, 2009Date of Patent: October 16, 2012Assignee: Wardcraft Conveyor & Die Products a division of McLaughlin Ward & CompanyInventors: Paul H. Miner, Gary W. Cook
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Patent number: 7975836Abstract: A horizontal conveyor for transporting bulk materials, in particular of containers for food, has at least one conveyor belt encompassing at least one assembly surface for the material to be conveyed. There is at least one sliding part, which is moveably guided parallel to the conveying direction thereof, be arranged below the assembly surface of the conveyor belt. At least one drive is assigned to the sliding part for its positively driven motion. There is at least one height-adjustable actuator for the material to be conveyed, arranged on the sliding part. The actuator is capable of being brought into an entrainment position, that projects into the plane of the assembly surface by means of a lifting device. A discontinuous conveyance of materials is possible in a simple manner with this horizontal conveyor.Type: GrantFiled: October 14, 2009Date of Patent: July 12, 2011Assignee: Jörg von Seggern Maschinenbau GmbHInventor: Joerg Von Seggern
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Patent number: 7789218Abstract: Opposite end sections (20, 26) of a piston/cylinder drive unit (14) are clamped to longitudinally spaced apart transverse mounting beams (10, 12), by a fixed clamp parts connected to the mounting beams (10, 12) and removable clamp parts that are connected by bolts to the fixed clamp parts. The piston rod end sections (20, 26) include longitudinal passageways having outer end openings that project outwardly from the clamps. Manifolds are secured to the mounting beams (10, 12) outwardly of the end openings in the piston rod end sections (20, 26). A detachable coupling connects ports in the manifold with the end openings in the piston rod end sections (20, 26). The piston cylinder drive unit (14) can be detached from the frame by first detaching the fluid couplings and then detaching the clamps which clamp the piston rod end sections (20, 26) to the mounting beams (10, 12).Type: GrantFiled: September 19, 2008Date of Patent: September 7, 2010Assignee: Keith Manufacturing Co.Inventors: Randall Mark Foster, John Scott Cook, Kenneth A. Stout
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Patent number: 7661523Abstract: A linear hydraulic motor (12) includes an elongate cylinder (26) and at least one piston (34) slidingly located inside the cylinder. The piston (34) has a longitudinally extending portion which fits with clearance in the cylinder and which describes a path in use which penetrates an interior zone of the cylinder which extends radially inwardly from an aperture in the cylinder wall. An internal reinforcing member (300) is slidingly located inside the cylinder to travel with the piston. The reinforcing member describes a path in use which also penetrates said interior zone of the cylinder which extends radially inwardly from the aperture in the cylinder wall and the reinforcing member has portions which are concentric and radially aligned with circumferentially spaced portions of the cylinder wall that are on opposite sides of said aperture in the cylinder wall.Type: GrantFiled: October 26, 2005Date of Patent: February 16, 2010Inventor: Rene Wegkamp
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Publication number: 20090266679Abstract: A conveyor assembly includes a mounting assembly for moving a material to be conveyed. The mounting assembly is movable in a first direction and in a second direction opposite the first direction. At least one resiliently deformable spring member is provided for storing energy therein responsive to a motion of the mounting assembly in the second direction. Energy stored in the spring member is usable to urge the mounting assembly and the associated material in the first direction.Type: ApplicationFiled: April 27, 2009Publication date: October 29, 2009Inventors: Paul H. Miner, Gary W. Cook
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Publication number: 20080257691Abstract: A linear hydraulic motor (12) includes an elongate cylinder (26) and at least one piston (34) slidingly located inside the cylinder. The piston (34) has a longitudinally extending portion which fits with clearance in the cylinder and which describes a path in use which penetrates an interior zone of the cylinder which extends radially inwardly from an aperture in the cylinder wall. An internal reinforcing member (300) is slidingly located inside the cylinder to travel with the piston. The reinforcing member describes a path in use which also penetrates said interior zone of the cylinder which extends radially inwardly from the aperture in the cylinder wall and the reinforcing member has portions which are concentric and radially aligned with circumferentially spaced portions of the cylinder wall that are on opposite sides of said aperture in the cylinder wall.Type: ApplicationFiled: October 26, 2005Publication date: October 23, 2008Inventor: Rene Wegkamp
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Patent number: 7083042Abstract: A pneumatically actuated, beltless conveyor assembly includes a housing, a drive system supported by the housing and at least one transport tray supported by the housing and operatively connected to the drive system. The drive system includes a seal-less pneumatic engine having at least one pair of opposed, pneumatic drive bellow assemblies. One of the drive bellow assemblies acts to drive the transport tray in one direction at a first predetermined speed to advance materials supported on the transport tray in the direction of the length of the tray. The other of the pair of drive bellow assemblies acts to drive the transport tray in a second direction opposite to the first direction and at a second, predetermined speed that is different from the first predetermined speed such that the transport tray moves relative to the material supported thereon.Type: GrantFiled: February 8, 2005Date of Patent: August 1, 2006Assignee: Magnetic Products, Inc.Inventors: Ron W. Kwasniewicz, Dennis Trestain
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Patent number: 6988611Abstract: A pneumatically actuated, beltless conveyor assembly includes a housing, a drive system supported by the housing and a transport tray also operatively supported by the housing. A drive system includes a seal-less pneumatic engine which acts to drive the transport tray in repeated, rectilinear fashion to advance materials supported on the transport tray in the direction of the length of the tray.Type: GrantFiled: September 27, 2002Date of Patent: January 24, 2006Assignee: Magnetic Products, Inc.Inventors: Ron W. Kwasniewicz, Dennis Trestain
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Patent number: 6899218Abstract: A pneumatically actuated, beltless conveyor assembly includes a housing, a drive system supported by the housing and at least one transport tray supported by the housing and operatively connected to the drive system. The drive system includes a seal-less pneumatic engine having at least one pair of opposed, pneumatic drive bellow assemblies. One of the drive bellow assemblies acts to drive the transport tray in one direction at a first predetermined speed to advance materials supported on the transport tray in the direction of the length of the tray. The other of the pair of drive bellow assemblies acts to drive the transport tray in a second direction opposite to the first direction and at a second, predetermined speed that is different from the first predetermined speed such that the transport tray moves relative to the material supported thereon.Type: GrantFiled: October 22, 2002Date of Patent: May 31, 2005Assignee: Magnetic Products, Inc.Inventors: Ron W. Kwasniewicz, Dennis Trestain
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Patent number: 6749057Abstract: With a sealing structure for the sliding unit disclosed here, a sealing member of foam rubber is disposed in a way closing a clearance left open between widthwise opposing covering shells installed on a track rail. A covering shell is composed of a covering side secured to a side wall of a track rail, and seal supporters integral with the covering side. A slider is provided with a projection extending through between inside fronts of the sealing members, which come into abutment against one another. Upon the back-and-forward linear movement of the slider relatively to the track rail, the projection moves in a way deforming the sealing members in expansion/collapse fashion, with keeping the close sliding engagement with the confronting fronts of the sealing members so that the sealing members keep constantly closing the clearance left open between the covering shells.Type: GrantFiled: October 30, 2002Date of Patent: June 15, 2004Assignee: Nippon Thompson Co., Ltd.Inventor: Masataka Kato
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Patent number: 6685178Abstract: There is provided a linear guiding apparatus for a machine tool, the system having both of rapid characteristics of a rolling guide which does not deteriorate the precision of movement, and damping characteristics of a sliding guide which is hardly influenced by the load of a movable body. The feed guiding system includes: rolling guides 14a, 14b, 15a and 15b for guiding a horizontal movement while receiving the load of a movable body 12 on a bed 11; a sliding guide including sliding guide ways 16a and 16b, which extend in parallel to the rolling guides and in vertical directions, and slider portions 18a and 18b which slide on the sliding guide ways; and frictional force setting parts for changing the frictional force between the slider portions and the sliding guide ways, to set the magnitude of the frictional force.Type: GrantFiled: December 13, 2002Date of Patent: February 3, 2004Assignee: Toshiba Kikai Kabushiki KaishaInventors: Kazuhiro Shiba, Takao Date
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Patent number: 6662934Abstract: A rodless cylinder comprises a cylinder tube, and a slide table which is movable back and forth along the cylinder tube. A cover member is fixed to the cylinder tube in a state in which an attachment base is secured to the slide table. A dust-preventive member is integrally interposed by an inner wall of the cover member, a side wall of the cylinder tube, and a side wall of the attachment base. The dust-preventive member is provided to be capable of making elastic deformation in a direction of the arrow B perpendicular to a direction of the arrow A.Type: GrantFiled: October 16, 2000Date of Patent: December 16, 2003Assignee: SMC Kabushiki KaishaInventor: Kazuhiro Iida
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Patent number: 6637584Abstract: A component carrying device has a simple constitution, and is capable of lining up components and carrying them in one direction with high reliability. The device comprises a guide groove for lining up components into one line and guiding them; a carrying member, provided on the bottom face of the guide groove, which can move forward and backward along the direction of the groove; and driving means, for driving the carrying member forward and backward at a higher speed when moving backward than when moving forward. The speed of the carrying member when moving forward is a speed at which a predetermined sustained frictional force acts between the carrying member and the components, which are mounted on the top face of the carrying member; and the speed of the carrying member when moving backward is a speed at which the frictional force between the carrying member and the components mounted on its top face, substantially breaks, so that the components are carried forward by the difference in frictional force.Type: GrantFiled: September 28, 2001Date of Patent: October 28, 2003Assignee: Murata Manufacturing Co., Ltd.Inventors: Shigeki Takahashi, Nihei Kaishita, Akira Nemoto
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Patent number: 6520320Abstract: The present invention relates to a linear stage with a seal band, including a dustproof belt, wherein the dustproof belt is made of high-molecular material, so that the loss value of the power of the movement seat of the linear stage may be reduced. In addition, the roller set is designed as the guide device, so that the contact resistance may be reduced, thereby increasing the working efficiency and the exactness of the linear stage.Type: GrantFiled: February 4, 2002Date of Patent: February 18, 2003Inventors: Fu-Ching Wang, Chen-Shaung Tsai, Arthur Liu
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Patent number: 6308821Abstract: A rail member and a rodless cylinder are arranged closely substantially in parallel to one another, and shock absorbers and the rail member are arranged closely substantially in parallel to one another. Accordingly, it is possible to arrange, in an ideal layout, the three components of the rail member, the rodless cylinder, and the shock absorbers. Further, it is possible to realize a compact size of the entire apparatus.Type: GrantFiled: April 14, 2000Date of Patent: October 30, 2001Assignee: SMC Kabushiki KaishaInventors: Go Asai, Kazuhiro Iida
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Publication number: 20010007300Abstract: A differential impulse conveyor includes a conveyor base 12 and a tray 16 movable in a forward direction to move goods with the tray and in a backward direction to slide goods along the tray. A pair of tray support members 18, 20, 192, 200, 222 interconnect the conveyor base in the tray. Each tray support member may be pivotally connected at a lower end of the conveyor base and pivotally connected at an upper end of the tray. An electrically powered linear motor 30, 82, 95, 135, 145, 225 moves the tray forward and rearward. A connector support 20 for interconnecting the base and the tray, or for interconnecting any stationary member and a movable member, may include a linear bearing having an end surface with a radius for rolling engagement with a contact surface having a radius twice of that of the end surface to achieve the desired linear motion of the tray or movable member.Type: ApplicationFiled: February 16, 2001Publication date: July 12, 2001Inventors: Paul B. Svejkovsky, Paul A. Svejkovsky, Thomas G. Knodell
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Patent number: 6189683Abstract: A differential impulse conveyor includes a conveyor base 12 and a tray 16 movable in a forward direction to move goods with the tray and in a backward direction to slide goods along the tray. A pair of tray support members 18, 20, 192, 200, 222 interconnect the conveyor base in the tray. Each tray support member may be pivotally connected at a lower end of the conveyor base and pivotally connected at an upper end of the tray. An electrically powered linear motor 30, 82, 95, 135, 145, 225 moves the tray forward and rearward. A connector support 20 for interconnecting the base and the tray, or for interconnecting any stationary member and a movable member, may include a linear bearing having an end surface with a radius for rolling engagement with a contact surface having a radius twice of that of the end surface to achieve the desired linear motion of the tray or movable member.Type: GrantFiled: December 17, 1998Date of Patent: February 20, 2001Inventors: Paul B. Svejkovsky, Paul A. Svejkovsky, Thomas G. Knodell, Jr.
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Patent number: RE41962Abstract: A pneumatically actuated, beltless conveyor assembly includes a housing, a drive system supported by the housing and at least one transport tray supported by the housing and operatively connected to the drive system. The drive system includes a seal-less pneumatic engine having at least one pair of opposed, pneumatic drive bellow assemblies. One of the drive bellow assemblies acts to drive the transport tray in one direction at a first predetermined speed to advance materials supported on the transport tray in the direction of the length of the tray. The other of the pair of drive bellow assemblies acts to drive the transport tray in a second direction opposite to the first direction and at a second, predetermined speed that is different from the first predetermined speed such that the transport tray moves relative to the material supported thereon.Type: GrantFiled: April 30, 2007Date of Patent: November 30, 2010Inventor: Dennis Trestain
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Patent number: RE42031Abstract: A pneumatically actuated, beltless conveyor assembly includes a housing, a drive system supported by the housing and at least one transport tray supported by the housing and operatively connected to the drive system. The drive system includes a seal-less pneumatic engine having at least one pair of opposed, pneumatic drive bellow assemblies. One of the drive bellow assemblies acts to drive the transport tray in one direction at a first predetermined speed to advance materials supported on the transport tray in the direction of the length of the tray. The other of the pair of drive bellow assemblies acts to drive the transport tray in a second direction opposite to the first direction and at a second, predetermined speed that is different from the first predetermined speed such that the transport tray moves relative to the material supported thereon.Type: GrantFiled: April 30, 2007Date of Patent: January 18, 2011Inventor: Dennis Trestain