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公开(公告)号：US20160362232A1
公开(公告)日：2016-12-15
申请号：US14737170
申请日：2015-06-11
Applicant: The Charles Machine Works, Inc.
Inventor： Cody L. Sewell , David A. Bural
Abstract: An apparatus for sealing a vacuum tank door. The apparatus comprises a circular flange attached to a door panel of a vacuum tank, a horizontal crossbar connected to the center of the door panel and a lifting assembly. The lifting assembly comprises an upper linkage arm, a lower linkage arm, and a hydraulic cylinder. Activation of the hydraulic cylinder causes the linkage assembly to move downwards pulling on the horizontal crossbar and pulling the vacuum tank door towards the tank. Activation of the hydraulic cylinder also causes a connection point of the lower linkage arm and the upper linkage arm to move over-center of the connection between the lower linkage arm to the to the tank creating a tight seal between the vacuum tank door and the tank.
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Patent Agency Ranking
公开(公告)号：US20180327999A1
公开(公告)日：2018-11-15
申请号：US15977282
申请日：2018-05-11
Applicant: The Charles Machine Works, Inc.
Inventor： David A. Bural , Levi J. Krutzfeldt , L. Shane Ingram , Vernon T. Stellman
IPC: E02F3/88
CPC classification number: E02F3/8816 , B08B9/08
Abstract: A system for controlling pressure to a vacuum tank. The system comprises a conduit disposed between the vacuum tank and a blower. The conduit has a sealable connection disposed along its length between two sections that are geometrically conforming. The connection may be conical and threadless. Tilting the vacuum tank relative to the blower causes the connection to separate, allowing pressure within the vacuum tank to equalize with atmospheric pressure. Filters may be provided on each side of the connection for removing particulates from air excavated from the tank.
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公开(公告)号：US20180072493A1
公开(公告)日：2018-03-15
申请号：US15810647
申请日：2017-11-13
Applicant: The Charles Machine Works, Inc.
Inventor： Cody L. Sewell , David A. Bural
CPC classification number: B65D90/008 , B65D90/623 , B65D90/626 , B65D2590/664 , E02F3/88 , E02F3/8816 , F16J13/18
Abstract: An apparatus for sealing a vacuum tank door. The apparatus comprises a circular flange attached to a door panel of a vacuum tank, a horizontal crossbar connected to the center of the door panel and a lifting assembly. The lifting assembly comprises an upper linkage arm, a lower linkage arm, and a hydraulic cylinder. Activation of the hydraulic cylinder causes the linkage assembly to move downwards pulling on the horizontal crossbar and pulling the vacuum tank door towards the tank. Activation of the hydraulic cylinder also causes a connection point of the lower linkage arm and the upper linkage arm to move over-center of the connection between the lower linkage arm to the to the tank creating a tight seal between the vacuum tank door and the tank.
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公开(公告)号：US20150291350A1
公开(公告)日：2015-10-15
申请号：US14737240
申请日：2015-06-11
Applicant: The Charles Machine Works, Inc.
Inventor： Cody L. Sewell , David A. Bural
IPC: B65D90/00
CPC classification number: B65D90/008 , B65D90/623 , B65D90/626 , B65D2590/664 , E02F3/88 , E02F3/8816 , F16J13/18
Abstract: An apparatus for sealing a vacuum tank door. The apparatus comprises a circular flange attached to a door panel of a vacuum tank, a horizontal crossbar connected to the center of the door panel and a lifting assembly. The lifting assembly comprises an upper linkage arm, a lower linkage arm, and a hydraulic cylinder. Activation of the hydraulic cylinder causes the linkage assembly to move downwards pulling on the horizontal crossbar and pulling the vacuum tank door towards the tank. Activation of the hydraulic cylinder also causes a connection point of the lower linkage arm and the upper linkage arm to move over-center of the connection between the lower linkage arm to the to the tank creating a tight seal between the vacuum tank door and the tank.
Abstract translation: 一种用于密封真空罐门的装置。 该装置包括附接到真空罐的门板的圆形凸缘，连接到门板的中心的水平横杆和升降组件。 提升组件包括上连杆臂，下连杆臂和液压缸。 液压缸的激活导致连杆组件向下移动，拉动水平横杆并将真空罐门拉向油箱。 液压缸的启动还使得下连杆臂和上连杆臂的连接点移动到下连杆臂与罐之间的连接的中心，从而在真空箱门和罐之间形成紧密的密封 。
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公开(公告)号：US10207863B2
公开(公告)日：2019-02-19
申请号：US15810647
申请日：2017-11-13
Applicant: The Charles Machine Works, Inc.
Inventor： Cody L. Sewell , David A. Bural
Abstract: An apparatus for sealing a vacuum tank door. The apparatus comprises a circular flange attached to a door panel of a vacuum tank, a horizontal crossbar connected to the center of the door panel and a lifting assembly. The lifting assembly comprises an upper linkage arm, a lower linkage arm, and a hydraulic cylinder. Activation of the hydraulic cylinder causes the linkage assembly to move downwards pulling on the horizontal crossbar and pulling the vacuum tank door towards the tank. Activation of the hydraulic cylinder also causes a connection point of the lower linkage arm and the upper linkage arm to move over-center of the connection between the lower linkage arm to the to the tank creating a tight seal between the vacuum tank door and the tank.
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公开(公告)号：US09821953B2
公开(公告)日：2017-11-21
申请号：US14737240
申请日：2015-06-11
Applicant: The Charles Machine Works, Inc.
Inventor： Cody L. Sewell , David A. Bural
CPC classification number: B65D90/008 , B65D90/623 , B65D90/626 , B65D2590/664 , E02F3/88 , E02F3/8816 , F16J13/18
Abstract: An apparatus for sealing a vacuum tank door. The apparatus comprises a circular flange attached to a door panel of a vacuum tank, a horizontal crossbar connected to the center of the door panel and a lifting assembly. The lifting assembly comprises an upper linkage arm, a lower linkage arm, and a hydraulic cylinder. Activation of the hydraulic cylinder causes the linkage assembly to move downwards pulling on the horizontal crossbar and pulling the vacuum tank door towards the tank. Activation of the hydraulic cylinder also causes a connection point of the lower linkage arm and the upper linkage arm to move over-center of the connection between the lower linkage arm to the to the tank creating a tight seal between the vacuum tank door and the tank.
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