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公开(公告)号：US12066077B2
公开(公告)日：2024-08-20
申请号：US17895871
申请日：2022-08-25
Applicant: DADCO, Inc.
Inventor： Jonathan P. Cotter
CPC classification number: F16F9/437 , F16F9/02 , F16F9/3242 , F16K17/40 , F16F9/3221
Abstract: An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.
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公开(公告)号：US10527121B2
公开(公告)日：2020-01-07
申请号：US15699591
申请日：2017-09-08
Applicant: DADCO, Inc.
Inventor： Jonathan P. Cotter
Abstract: A gas spring with a casing with an axially extending side wall, an open end and a closed end wall spaced from the open end and a pressure chamber provided in part by the walls to receive a gas therein under pressure and a piston rod slidably received in a housing received in the casing and movable between extended and retracted positions. A pressure relief collar slidably carried around the piston rod and normally projecting axially outwardly of the casing can be displaced axially inwardly during an overtravel condition of the piston rod to displace a portion of a piston rod seal to open an overpressure relief path to allow pressurized gas in the pressure chamber to escape to the outside of the gas spring.
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公开(公告)号：US09347510B2
公开(公告)日：2016-05-24
申请号：US14031900
申请日：2013-09-19
Applicant: DADCO, Inc.
Inventor： Jonathan P. Cotter
CPC classification number: F16F9/02 , F16F9/0218 , F16F9/3235 , F16F2230/24 , F16F2230/32
Abstract: A piston rod housing assembly for a gas spring includes a piston rod housing having an interior end, an exterior end axially spaced from the interior end, and an overtravel pressure relief passage extending axially through the piston rod housing and intersecting the exterior end. The assembly also includes an overtravel pressure relief member carried in the overtravel pressure relief passage and having an exterior end that projects axially beyond the piston rod housing.
Abstract translation: 用于气体弹簧的活塞杆壳体组件包括活塞杆壳体，其具有内端，与内端轴向间隔开的外端，以及轴向延伸穿过活塞杆壳体并与外端相交的超行程减压通道。 组件还包括承载在超程减压通道中并具有轴向突出超过活塞杆壳体的外端的超程减压构件。
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公开(公告)号：US08348249B2
公开(公告)日：2013-01-08
申请号：US12568736
申请日：2009-09-29
Applicant: Jonathan P. Cotter
Inventor： Jonathan P. Cotter
IPC: B21D22/00
CPC classification number: B21D24/02
Abstract: An apparatus may have a cylinder including a piston rod and a chamber in which a working fluid is received to resist movement of the piston rod into the chamber, and an accumulator having a first chamber in communication with the cylinder chamber to receive fluid from the cylinder chamber upon movement of the piston rod into the cylinder chamber. The apparatus may also have a pressure controller having a fluid chamber where some of the working fluid may be received and an actuator operable to increase the volume of the fluid chamber when the piston rod is retracted into the cylinder chamber to increase the total volume in which the working fluid may be received, wherein the increased volume of the fluid chamber may accommodate fluid movement in the assembly not caused by movement of the piston rod.
Abstract translation: 装置可以具有包括活塞杆和室的圆柱体，其中容纳工作流体以阻止活塞杆进入腔室的运动;以及蓄液器，其具有与气缸室连通的第一腔室，以从气缸接收流体 活塞杆移动到气缸室中。 该装置还可以具有压力控制器，该压力控制器具有流体室，其中可以接收一些工作流体;以及致动器，其可操作以在活塞杆缩回到气缸室中时增加流体室的体积，以增加其中的总体积 可以接收工作流体，其中流体室的增加的体积可以适应不是由活塞杆的运动引起的组件中的流体运动。
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公开(公告)号：US20110192206A1
公开(公告)日：2011-08-11
申请号：US12701313
申请日：2010-02-05
Applicant: Jonathan P. Cotter
Inventor： Jonathan P. Cotter
IPC: B21D22/10
CPC classification number: B21D37/12 , B21D45/006 , B21D45/06 , F16C29/02 , F16C2322/14
Abstract: A guide and retention assembly for spaced apart confronting plates of a die set for guiding the plates for relative reciprocal movement toward and away from the other. The assembly includes a housing with a mounting flange and a sleeve with a through bore, and a rod extending through the bore and slidably received in at least one bushing in the sleeve.
Abstract translation: 用于间隔开的模具组的面对板的引导和保持组件，用于引导板，以相对于彼此往复运动并相互移动。 组件包括具有安装凸缘的壳体和具有通孔的套筒，以及延伸穿过孔并且可滑动地容纳在套筒中的至少一个衬套中的杆。
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Patent Agency Ranking
公开(公告)号：US11959530B2
公开(公告)日：2024-04-16
申请号：US17895852
申请日：2022-08-25
Applicant: DADCO, Inc.
Inventor： Jonathan P. Cotter
CPC classification number: F16F9/437 , F16F9/02 , F16F9/3242 , F16K17/40 , F16F9/3221
Abstract: An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.
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公开(公告)号：US20220403907A1
公开(公告)日：2022-12-22
申请号：US17895852
申请日：2022-08-25
Applicant: DADCO, Inc.
Inventor： Jonathan P. Cotter
Abstract: An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.
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公开(公告)号：US11460087B2
公开(公告)日：2022-10-04
申请号：US16825813
申请日：2020-03-20
Applicant: DADCO, Inc.
Inventor： Jonathan P. Cotter
Abstract: An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.
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公开(公告)号：US09416840B2
公开(公告)日：2016-08-16
申请号：US13356006
申请日：2012-01-23
Applicant: Jason L. Vandine
Inventor： Jason L. Vandine
CPC classification number: F16F9/0227 , F16F9/3405 , F16F9/36 , F16F9/48
Abstract: A gas spring for forming equipment, including a piston received at least partially in a cylinder for reciprocation between extended and retracted positions, and including a throttling passage disposed between the piston and the cylinder in fluid communication between first and second pressure chambers during at least a portion of the reciprocation of the piston. The throttling passage is of variable cross-sectional area, which varies with a length of the passage to at least partially restrict gas flow therethrough in a manner varying with return of the piston toward its extended position to decelerate the piston at a predetermined rate.
Abstract translation: 一种用于成形设备的气体弹簧，包括至少部分地容纳在用于在延伸和缩回位置之间往复运动的气缸中的活塞的活塞，并且包括设置在活塞和气缸之间的节流通道，其在至少一个第一和第二压力室之间流体连通 活塞往复运动的一部分。 节流通道具有可变的横截面面积，其随着通道的长度而变化，以至少部分地限制气体流过其中，其方式随活塞朝向其延伸位置的变化而变化，以使活塞以预定的速率减速。
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公开(公告)号：US08490763B2
公开(公告)日：2013-07-23
申请号：US12401369
申请日：2009-03-10
Applicant: Jason L. Vandine
Inventor： Jason L. Vandine
IPC: F16F9/34
CPC classification number: F16F9/362 , F16F9/0218 , F16F9/48
Abstract: A delay return gas spring including a piston at least partially received in a cylinder for reciprocation between extended and compressed positions over a cycle including a compression stroke and a return stroke. A seal disposed between the cylinder and the piston separates a primary chamber on one side of the seal from a secondary chamber on another side of the seal during a portion of the cycle. A passage communicates with the secondary chamber and with the primary chamber. The seal is relatively movable between an open position permitting free flow of gas through the passage to a closed position at least partially restricting gas flow through the passage so as to permit gas in the secondary chamber to be compressed in response to movement of the piston toward its extended position, thereby reducing a net return force on the piston and decreasing a velocity of the piston.
Abstract translation: 延迟返回气体弹簧包括至少部分地容纳在气缸中的活塞，用于在包括压缩冲程和返回冲程的循环之间在延伸压缩位置之间往复运动。 设置在气缸和活塞之间的密封件在循环的一部分期间将密封件的一侧上的主室与密封件的另一侧上的副室分离。 通道与次级室和主室连通。 所述密封件可在打开位置之间相对移动，所述打开位置允许气体通过所述通道自由流动到关闭位置，所述关闭位置至少部分地限制通过所述通道的气体流动，以便允许响应于所述活塞朝向 其延伸位置，从而减少活塞上的净返回力并降低活塞的速度。
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