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1. 发明授权

US06321951B1 Dispensing apparatus 有权
标题翻译：点胶装置
公开(公告)号：US06321951B1
公开(公告)日：2001-11-27
申请号：US09529290
申请日：2000-04-07
申请人： Bernard Dereck Frutin
发明人： Bernard Dereck Frutin
IPC分类号： F16J100
CPC分类号： B65D83/425 , B65D83/201 , B65D83/44 , B65D83/64
摘要： A dispensing apparatus for dispensing a product from a container under pressure of a propellant by means of a composite piston (138). The apparatus has a valve (104) operated by means of an actuator (108) and a lever (166). The actuator co-operates with the valve and lever by means of a screw thread arrangement (110), such that turning actuator relative to the lever varies the flow rate of product out of the apparatus. The valve is a hollow cylindrical tube (104) which is open at one end and closed at the second end, either permanently or by means of a flap valve (112) which allows insertion of the product. A number of ports (116) are arranged around the circumference of the tube (104) adjacent to the second end to allow product to flow through the valve when the lever is operated. The composite piston (138) comprises a first piston (140a) coupled to a second piston (140b) by mutually engageable central stems (142a, b) and enclosing between the pistons a viscous substance which contacts the inside wall of the container to provide an effective seal. The piston arrangement of the apparatus stays together without the need for “necking in” the can and the apparatus can be filled with product by the manufacturer.
摘要翻译：一种用于通过复合活塞（138）在推进剂的压力下从容器分配产品的分配装置。该装置具有通过致动器（108）和杠杆（166）操作的阀（104）。致动器通过螺纹装置（110）与阀和杠杆相配合，使得转向致动器相对于杠杆改变产品流出装置的流速。阀是一个中空的圆柱形管（104），其一端敞开并在第二端封闭，永久地或通过允许产品插入的活门阀（112）封闭。多个端口（116）围绕邻近第二端的管（104）的圆周布置，以允许当操作杆时产品流过阀。复合活塞（138）包括通过相互接合的中心杆（142a，b）联接到第二活塞（140b）并且在活塞之间包围粘性物质的第一活塞（140a），其与容器的内壁接触以提供有效密封。设备的活塞装置保持在一起，而不需要将罐颈“颈缩”，并且设备可以由制造商填充产品。

2. 发明授权

US06588321B1 Closed cavity piston and method of making the same 失效
标题翻译：封闭式活塞及其制作方法
公开(公告)号：US06588321B1
公开(公告)日：2003-07-08
申请号：US09722617
申请日：2000-11-27
申请人： Robert J. Stoppek
发明人： Robert J. Stoppek
IPC分类号： F16J100
CPC分类号： B23P15/10 , F04B53/14 , F16J1/005
摘要： A closed cavity piston includes an elongated piston body and a separately formed piston cap having an elongated stem and head thereon. The body includes a closed end and an open end with a cavity having a bottom wall adjacent the closed end and an outer wall terminating in a rim at the open end. The stem of the piston cap is friction inertia welded to the bottom wall of the piston body and the head of the piston cap welds to the rim of the piston body so as cover the open end and sealingly enclose the cavity. The piston components can both be formed by conventional and relatively inexpensive cold forming techniques. The stem of the cap is inserted into the cavity of the body until it engages the bottom wall. Then the cap is friction inertia welded to the body at the stem/bottom wall and head/rim interfaces.
摘要翻译：闭合腔活塞包括细长活塞体和分开形成的活塞盖，其上具有细长的杆和头部。主体包括封闭的端部和敞开的端部，其具有邻近封闭端的底壁和终止于开口端的边缘的外壁。活塞盖的杆部是摩擦惯性焊接到活塞体的底壁上，活塞帽的头部焊接到活塞体的边缘，以覆盖开口端并密封地封闭空腔。活塞部件都可以通过常规且相对便宜的冷成形技术形成。盖的杆被插入到主体的空腔中，直到其接合底壁。然后，帽是摩擦惯性焊接到杆/底壁和头/边缘接口处的主体。

3. 发明授权

US06363833B1 Piston for hydraulic power assist rack and pinion steering system 失效
标题翻译：活塞式液压动力辅助齿条和小齿轮转向系统
公开(公告)号：US06363833B1
公开(公告)日：2002-04-02
申请号：US09641277
申请日：2000-08-17
申请人： Richard A. Stoll
发明人： Richard A. Stoll
IPC分类号： F16J100
CPC分类号： B62D5/12 , F15B15/1447 , F16J1/008
摘要： A hydraulic power assist steering system (10) for a vehicle having steerable wheels comprises a housing (14) and a rack (16). The system also comprises a fluid motor (20) for moving the rack (16). The fluid motor (20) includes a piston (10) fixedly connected to the rack (16) and a pump (36). The piston (10) has first and second opposite end faces (82, 84) against which hydraulic fluid is directed by the pump (36) to effect movement of the piston (10), and thereby the rack (16), relative to the housing (14). The piston (10) has a wall (60) including a first end portion (64) connected with the rack (16) at a first axial location along the rack, a second end portion (66) connected with the rack at a second axial location along the rack, and a central portion (62) extending between and interconnecting the first and second end portions of the wall. The central portion (62) of the wall (60) has an outer peripheral groove (70) for receiving a seal ring (86) for engagement with the housing (14). The first end portion (64) and the second end portion (66) and the central portion (62) of the piston (10) define a cavity (80) in the piston. The cavity (80) has an annular configuration extending around the rack (16) inside of the wall (60).
摘要翻译：一种用于具有可转向轮的车辆的液压动力辅助转向系统（10）包括壳体（14）和齿条（16）。该系统还包括一个用于移动齿条（16）的流体马达（20）。流体马达（20）包括固定地连接到齿条（16）的活塞（10）和泵（36）。活塞（10）具有第一和第二相对端面（82,84），液压流体被泵（36）引导以使活塞（10）移动，从而使齿条（16）相对于住房（14）。所述活塞（10）具有壁（60），所述壁（60）包括在沿着所述齿条的第一轴向位置处与所述齿条（16）连接的第一端部（64），与所述齿条在第二轴向连接的第二端部沿着机架的位置，以及在壁的第一和第二端部之间延伸并互连的中心部分（62）。壁（60）的中心部分（62）具有用于接收用于与壳体（14）接合的密封环（86）的外周槽（70）。活塞（10）的第一端部（64）和第二端部（66）和中心部分（62）在活塞中限定空腔（80）。空腔（80）具有围绕壁（60）内部的齿条（16）延伸的环形构造。

4. 发明授权

US06817278B2 Piston assembly for hydraulic cylinder 有权
标题翻译：液压缸活塞总成
公开(公告)号：US06817278B2
公开(公告)日：2004-11-16
申请号：US10277763
申请日：2002-10-22
申请人： Matthew J. Hennemann , Roger D. Mickelson , Philip A. Iannarelli
发明人： Matthew J. Hennemann , Roger D. Mickelson , Philip A. Iannarelli
IPC分类号： F16J100
CPC分类号： F15B15/1447 , Y10T29/49268
摘要： A piston assembly for use in a hydraulic cylinder includes a piston head configured to slide axially within the hydraulic cylinder in response to changes in hydraulic pressure. The piston head has an axial through-hole. A piston rod has a proximal end axially abutting the piston head and a distal end extending outward through an end of the hydraulic cylinder. The proximal end of the piston rod has a threaded bore co-axial with the axial through-hole in the piston head. A bolt has a bolt head and an unthreaded shank portion adjacent the bolt head and a threaded shank portion away from the bolt head. The bolt secures the piston head to the proximal end of the piston rod when the bolt shank is inserted through the axial through-hole in the piston head and is threadingly engaged in the threaded bore in the piston rod. An annular washer is positioned and held captive on the unthreaded portion of the bolt shank between the bolt head and the piston head. The washer has a flat face abutting the piston head so as to concentrically transfer clamping force from the bolt head to the piston head when the bolt is threaded into engagement in the threaded bore in the piston rod. The piston head is secured between the bolt head and the piston rod.
摘要翻译：用于液压缸的活塞组件包括一个活塞头，该活塞头构造成响应于液压变化而在液压缸内轴向滑动。活塞头具有轴向通孔。活塞杆具有近端轴向地邻接活塞头和从液压缸的端部向外延伸的远端。活塞杆的近端具有与活塞头中的轴向通孔同轴的螺纹孔。螺栓具有螺栓头和与螺栓头相邻的无螺纹柄部分和远离螺栓头部的螺纹柄部分。当螺栓杆穿过活塞头中的轴向通孔插入时，螺栓将活塞头固定到活塞杆的近端，并且螺纹接合在活塞杆的螺纹孔中。环形垫圈被定位并保持在螺栓头部在螺栓头和活塞头之间的无螺纹部分上。垫圈具有邻接活塞头的平坦表面，以便当螺栓拧入到活塞杆的螺纹孔中时，将夹紧力从螺栓头同步地传递到活塞头。活塞头固定在螺栓头和活塞杆之间。

5. 发明授权

US06526869B2 Piston for compressors and method for producing the same 有权
标题翻译：活塞式压缩机及其制造方法
公开(公告)号：US06526869B2
公开(公告)日：2003-03-04
申请号：US09824313
申请日：2001-04-02
申请人： Takayuki Kato , Takahiro Hoshida , Seiji Katayama
发明人： Takayuki Kato , Takahiro Hoshida , Seiji Katayama
IPC分类号： F16J100
CPC分类号： F04B27/0878
摘要： A hollow piston has an end wall that receives the pressure of a cylinder bore of a compressor. Several reinforcing ribs are formed on the inner end face of the end wall. The ribs extend radially from the axis of the piston. Therefore, the piston is light and strong.
摘要翻译：中空活塞具有接收压缩机的气缸孔的压力的端壁。在端壁的内端面形成有多个加强筋。肋从活塞的轴线径向延伸。因此，活塞轻而坚固。

6. 发明授权

US06490964B2 Master brake cylinders having overmolded seals 失效
标题翻译：主制动缸具有过模制密封
公开(公告)号：US06490964B2
公开(公告)日：2002-12-10
申请号：US09766748
申请日：2001-01-22
申请人： Connie J. Buynacek
发明人： Connie J. Buynacek
IPC分类号： F16J100
CPC分类号： F16J15/3284 , B29C2045/14459 , B60T11/236 , F16J15/3236
摘要： A master brake cylinder for use in a braking system of a vehicle, which contains pistons, having seals molded thereon. Overmolding the elastomer directly onto the pistons forms the seals. Also disclosed are improved master brake cylinder pistons having seals for automotive and other vehicles, and master brake cylinders which comprise brake fluid resistant, synthetic elastomer seals molded directly onto the piston of the master brake cylinder.
摘要翻译：一种用于车辆的制动系统的主制动缸，其包含在其上模制的密封件的活塞。将弹性体直接包覆在活塞上形成密封件。还公开了具有用于汽车和其他车辆的密封件的改进的主制动缸活塞和主制动缸，其包括直接模制在主制动缸的活塞上的制动液阻力的合成弹性体密封件。

7. 发明授权

US06293185B1 Piston for a hydrostatic cylinder block 失效
标题翻译：活塞式静压缸体
公开(公告)号：US06293185B1
公开(公告)日：2001-09-25
申请号：US09514094
申请日：2000-02-28
申请人： Robert J. Stoppek , Mark A. Landwehr
发明人： Robert J. Stoppek , Mark A. Landwehr
IPC分类号： F16J100
CPC分类号： F04B1/124 , B23P15/10
摘要： A piston for use in the cylinder block of a hydraulic power unit. The piston has an elongated cylindrical body and one end terminating in a spherical surface. The piston is composed of a body and insert which are made from different materials, preferably metallic materials, and joined together. The piston body takes the form of a solid cylinder or a hollow cylindrical tube. The spherical surface takes the form of an internal spherical socket or an external spherical ball. The insert takes an elongated or abbreviated form providing for both open cavity and closed cavity piston configurations. The piston includes a conduit which traverses the body and insert, providing a path for pressurized fluid.
摘要翻译：一种用于液压动力单元的气缸体的活塞。活塞具有细长的圆柱体，一端终止于球形表面。活塞由主体和插入件组成，其由不同的材料制成，优选为金属材料，并连接在一起。活塞体采用实心圆筒或中空圆柱形管的形式。球形表面采用内部球形插座或外球面球形。插入件采用延伸的或缩写形式，提供开放腔体和闭合腔体活塞构造。活塞包括穿过主体并插入的导管，为加压流体提供路径。

8. 发明授权

US06823769B2 Device and method for fixing a piston or a piston rod attachment to a piston rod 失效
标题翻译：将活塞或活塞杆附件固定在活塞杆上的装置和方法
公开(公告)号：US06823769B2
公开(公告)日：2004-11-30
申请号：US10248419
申请日：2003-01-17
申请人： Jan-Ove Schöllin
发明人： Jan-Ove Schöllin
IPC分类号： F16J100
CPC分类号： F16J1/12
摘要： Method and arrangement for fixing a piston (1), or a piston rod attachment, to a piston rod (5), one of the piston (1) and the piston rod (5) having a hole (2) running in its axial direction, and the other of these having a portion designed for being received by the hole (2) for connection of the piston (1) and the piston rod (5). The device includes an elongate locking means (10), at least one first opening (8a, 8b) in the piston and at least one second opening (9) in the piston rod (5), which openings (8a, 8b, 9) in the piston rod (5), which openings (8a, 8b, 9) extend in a different direction from the axial direction and are designed for receiving the locking means (10) for the purpose of bringing about the fixing. The elongate locking means (10) has a greater extent in its transverse direction, along at least a part of the means, than the extent of at least one of the openings (8a, 8b, 9) in its transverse direction, along at least a part thereof, for form locking between the locking means (10) and the opening. The invention also relates to a method for the fixing.
摘要翻译：将活塞（1）或活塞杆附件固定到活塞杆（5）的方法和装置，活塞（1）和活塞杆（5）中的一个具有沿轴向延伸的孔（2），另一个具有设计成被孔（2）接收用于连接活塞（1）和活塞杆（5）的部分。该装置包括细长的锁定装置（10），活塞中的至少一个第一开口（8a，8b）和活塞杆（5）中的至少一个第二开口（9），该开口（8a，8b，9）在所述活塞杆（5）中，所述开口（8a，8b，9）在与所述轴向方向不同的方向上延伸并被设计成用于接收所述锁定装置（10）以实现所述固定。沿着至少一部分开口（8a，8b，9）在其横向方向上至少一个开口（8a，8b，9）的横向方向上的细长锁定装置（10）在其横向方向上具有更大的程度其一部分用于在锁定装置（10）和开口之间形成锁定。本发明还涉及一种用于固定的方法。

9. 发明授权

US06732633B1 Reduced dead volume hollow piston 失效
标题翻译：减少空心体积的活塞
公开(公告)号：US06732633B1
公开(公告)日：2004-05-11
申请号：US10341708
申请日：2003-01-14
申请人： Michael A. Betz
发明人： Michael A. Betz
IPC分类号： F16J100
CPC分类号： F04B1/124 , F16J1/22
摘要： A piston for use in the cylinder block of a hydraulic power unit. The piston has an elongated cylindrical body with one end configured to connect with a slipper element. The second end of the piston is open with an annular cavity in the piston body defining an elongated stem extending from the head end of the piston and slightly protruding through the open end. The stem is concentrically located within the longitudinal axis of the annular cavity and has an elongated fluid conduit that extends longitudinally through the stem and completely through the piston. The fluid conduit traverses the piston body along the center axis, providing a path for pressurized fluid. The piston is composed of a unitary cast construction.
摘要翻译：一种用于液压动力单元的气缸体的活塞。活塞具有细长的圆柱体，其一端构造成与拖鞋元件连接。活塞的第二端在活塞体中开有环形空腔，该空腔限定了从活塞的头端延伸并稍微突出穿过开口端的细长杆。杆同心地位于环形空腔的纵向轴线内，并且具有纵向延伸穿过杆并且完全穿过活塞的细长流体导管。流体导管沿着中心轴线穿过活塞体，为加压流体提供路径。活塞由一体式铸造结构组成。

10. 发明授权

US06609454B2 Piston with seal 失效
公开(公告)号：US06609454B2
公开(公告)日：2003-08-26
申请号：US09849151
申请日：2001-05-04
申请人： Stanley A. Frost
发明人： Stanley A. Frost
IPC分类号： F16J100
CPC分类号： F16F9/368 , F15B1/24 , F15B2201/205 , F15B2201/312 , F15B2201/61 , F16F9/067 , F16J1/008
摘要： A method of forming a floating piston includes fabricating a piston cup, wherein the piston cup includes a top, a sidewall void of any seal-gripping irregularities, and an open end, and forming an elastomer seal over the sidewall of the piston cup. A floating piston includes a piston cup having a top, a sidewall extending about the periphery of the top and an open end, wherein the sidewall is void of any seal-gripping irregularities; and an elastomer seal formed about the sidewall of the piston cup.

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