# US 2009/0261128 A1 · Portable constant-pressure refillable material transfer system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2009/0261128 A1 - Document ID: US20090261128A1 - Status: Published application - Kind: A1 - Application number: 12/426,789 - Filed: 2009-04-20 - Published: 2009-10-22 - Earliest claimed: 2008-04-21 - Assignees: CH&I Technologies, Inc. - Inventors: Eric A. Williams; Robert D. Thibodeau; Michael P. Nicholls - Web page: https://patentgrep.com/patent/US20090261128A1 ## CPC - G01F 11/04: of the free-piston type - G01F 11/021: {of the piston type (G01F11/04 takes precedence)} - G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME ## Abstract A refillable material transfer system is disclosed having a portable constant-pressure compressed gas system for storing, transferring and dispensing viscous material, such as fluids and liquids, includes a material containment vessel with an upper region incorporating a motive force and a bottom region with a material ingress and egress opening. The portable constant-pressure compressed gas subsystem can be used with a fluid vessel, hand-held systems, a backpack system or other configurations. ## Claims ### Claim 1 A refillable system for dispensing a material by a constant-pressure gas, the system comprising: (a) a vessel for containing and dispensing the material, having a first vessel end, an opposing second vessel end, and a circumferential sidewall extending therebetween, the first end having a gas inlet and the second end having a material outlet manifold, the vessel further having a longitudinal axis and a transverse width; (b) a subsystem for generating and supplying constant-pressure gas through the gas inlet, the subsystem comprising: a container for containing a gas material in a liquid phase, a converter for converting the liquid-phased gas material into a gaseous-phased material, a pressure mechanism connected to the converter for dispensing the gaseous-phased material with constant-pressure of a user-determined value as the constant-pressure gas, and a pressure control operably connected to the pressure mechanism for actuation and de-actuation thereof and for changing the value of constant-pressure into a different one, wherein the apparatus is in gaseous communication with the vessel for transmitting the constant-pressure gas thereinto through the gas inlet; and (c) a force transfer device disposed within the vessel for transferring force from the constant-pressure gas to the material in the vessel for dispensation thereof, the force transfer device comprising: a crown, a tangential member attached to the crown and having a longitudinal axis substantially parallel to the longitudinal axis of the vessel, wherein the tangential member is configured with an outer area substantially parallel to the longitudinal axis, wherein the tangential member has a transverse width substantial less than the transverse width of the vessel, and a thruster attached to the tangential member and configured to penetrate the material in the vessel, wherein the crown is configured to be pressed by the constant-pressure gas so as to push the thruster into the material in the vessel toward the second vessel end and to be dispensed out of the material outlet manifold. ### Claim 2 (depends on 1) The refillable system as in claim 1, further comprising a retainer positioned at the first vessel end and configured to conform to the shape of the crown. ### Claim 3 (depends on 2) The refillable system as in claim 2, further comprising an arrestor positioned at the second end of the vessel and configured to conform to the shape of the thruster. ### Claim 4 (depends on 1) The refillable system as in claim 1, wherein the container of the apparatus is of a portable size and replaceable. ### Claim 5 (depends on 4) The refillable system as in claim 4, wherein the container is configured to contain liquefied CO2 gas. ### Claim 6 (depends on 1) The refillable system as in claim 1, wherein the converter of the apparatus uses the heat energy from ambient atmospheric air for converting the gas material from the liquid phase into the gaseous phase. ### Claim 7 (depends on 6) The refillable system as in claim 6, wherein the converter of the apparatus uses vaporization for converting the gas material from the liquid phase into the gaseous phase. ### Claim 8 (depends on 1) The refillable system as in claim 1, wherein the converter of the apparatus converts the gas material from the liquid phase into the gaseous phase at a temperature significantly lower than ambient atmospheric air temperature. ### Claim 9 A refillable system for dispensing a material by a constant-pressure gas, the system comprising: (b) a vessel for containing and dispensing the material, having a first vessel end, an opposing second vessel end, and a circumferential sidewall extending therebetween, the first end having a gas inlet and the second end having a material outlet manifold, the vessel further having a longitudinal axis and a transverse width; (b) a subsystem for generating and supplying constant-pressure gas through the gas inlet, the subsystem comprising: an air compressor for supplying pressure gas material to the vessel, a surge tank in fluid communication with said air compressor for dampening fluctuations of said air compressor; and a pressure regulator connected to the surge tank for controlling the pressure gas; wherein the subsystem is in gaseous communication with the vessel for transmitting the constant-pressure gas thereinto through the gas inlet; and (c) a force transfer device disposed within the vessel for transferring force from the constant-pressure gas to the material in the vessel for dispensation thereof, the force transfer device comprising: a crown, a tangential member attached to the crown and having a longitudinal axis substantially parallel to the longitudinal axis of the vessel, wherein the tangential member is configured with an outer area substantially parallel to the longitudinal axis, wherein the tangential member has a transverse width substantial less than the transverse width of the vessel, and a thruster attached to the tangential member and configured to penetrate the material in the vessel, wherein the crown is configured to be pressed by the constant-pressure gas so as to push the thruster into the material in the vessel toward the second vessel end and to be dispensed out of the material outlet manifold.