公开(公告)号：US20220018435A1

公开(公告)日：2022-01-20

申请号：US17375756

申请日：2021-07-14

Applicant: Chart Inc.

Inventor： Eric Thor

IPC: F16J9/06 ,  F16J7/00 ,  F16J15/3268

Abstract: An annular seal for sealing an opening in a pump housing surrounding a piston rod includes a primary sealing portion with an inner surface adjacent to the piston rod and an outer surface adjacent to the pump housing. An initial sealing portion features an inner wall and an outer wall so that an annular space is defined therebetween. A top wall extends between the inner and outer walls. A coil spring is positioned within the annular space of the initial sealing portion and urges the inner wall into engagement with the piston rod and the outer wall into engagement with the pump housing.

公开(公告)号：US20210404604A1

公开(公告)日：2021-12-30

申请号：US17348972

申请日：2021-06-16

Applicant: Chart Inc.

Inventor： Thomas K. Drube ,  Eric Thor

IPC: F17C7/04 ,  F17C13/02

Abstract: A system for dispensing a cryogenic fluid includes a bulk tank configured to contain a supply of a cryogenic liquid, a first sump and a first liquid feed valve configured to direct liquid from the bulk tank to the first sump when in an open condition and to prevent transfer of liquid from the bulk tank to the first sump when in a closed condition. A first positive displacement pump is positioned within the first sump and configured to pump and be submerged in cryogenic liquid when the first sump contains cryogenic liquid above a predetermined liquid level within the first sump. A delivery line is in fluid communication with an outlet of the first positive displacement pump and is configured to direct cryogenic fluid from the first positive displacement pump to a use device when the first positive displacement pump is activated.

公开(公告)号：US20190331298A1

公开(公告)日：2019-10-31

申请号：US16395758

申请日：2019-04-26

Applicant: Chart Inc.

Inventor： Eric Thor ,  Thomas Drube ,  Paul Drube

IPC: F17C5/02 ,  F17C6/00

Abstract: A system for dispensing a cryogenic fluid includes a bulk storage tank configured to contain a supply of the cryogenic fluid. A heat exchanger coil is positioned in the headspace of at least one intermediate fluid tank, which contains an intermediate fluid, and is configured to receive and warm a cryogenic fluid from the bulk storage tank via heat exchange with intermediate fluid vapor in the headspace. A buffer tank receives fluid from the heat exchanger coil. A chiller coil is positioned within the intermediate fluid tank and is submerged within intermediate fluid liquid contained within the at least one intermediate fluid tank. The chiller coil receives fluid from the buffer tank and cools it via heat exchange with intermediate fluid liquid within which the chiller coil is submerged for dispensing.

公开(公告)号：US11761536B2

公开(公告)日：2023-09-19

申请号：US17375756

申请日：2021-07-14

Applicant: Chart Inc.

Inventor： Eric Thor

IPC: F16J9/06 ,  F16J7/00 ,  F16J15/3268

CPC classification number: F16J9/06 ,  F16J7/00 ,  F16J15/3268

Abstract: An annular seal for sealing an opening in a pump housing surrounding a piston rod includes a primary sealing portion with an inner surface adjacent to the piston rod and an outer surface adjacent to the pump housing. An initial sealing portion features an inner wall and an outer wall so that an annular space is defined therebetween. A top wall extends between the inner and outer walls. A coil spring is positioned within the annular space of the initial sealing portion and urges the inner wall into engagement with the piston rod and the outer wall into engagement with the pump housing.

公开(公告)号：US11174991B2

公开(公告)日：2021-11-16

申请号：US16395758

申请日：2019-04-26

Applicant: Chart Inc.

Inventor： Eric Thor ,  Thomas Drube ,  Paul Drube

IPC: F17C5/02 ,  F17C6/00

Abstract: A system for dispensing a cryogenic fluid includes a bulk storage tank configured to contain a supply of the cryogenic fluid. A heat exchanger coil is positioned in the headspace of at least one intermediate fluid tank, which contains an intermediate fluid, and is configured to receive and warm a cryogenic fluid from the bulk storage tank via heat exchange with intermediate fluid vapor in the headspace. A buffer tank receives fluid from the heat exchanger coil. A chiller coil is positioned within the intermediate fluid tank and is submerged within intermediate fluid liquid contained within the at least one intermediate fluid tank. The chiller coil receives fluid from the buffer tank and cools it via heat exchange with intermediate fluid liquid within which the chiller coil is submerged for dispensing.