Substance Injecting Apparatuses and Methods for Using Same
AssigneeFoam in Place Co., Ltd.
InventorsDvir Brand, Brian H. Bunnett, Philip Neil Theurer, Shlomo Nevo, Uzi Emanuel Aharony, Jonathan Knaan
Life of this patent
Estimating the term…
Abstract
A chemical injection system, comprising: a drive mechanism; a housing removably attached to the drive mechanism; at least one chemical inlet located on the housing; and, a valve spool located within the housing and provided with at least one chemical pass-through port, wherein the drive mechanism rotates the valve spool to align the chemical pass-through port with the chemical inlet.
Claims36
A chemical injection system, comprising:
- a drive mechanism;
- a housing removably attached to said drive mechanism;
- at least one chemical inlet located on said housing;
- and,
- a valve spool located within said housing and provided with at least one chemical pass-through port, wherein said drive mechanism rotates said valve spool to align said chemical pass-through port with said chemical inlet.
A cartridge for a chemical injection system, comprising:
- a housing provided with at least one chemical inlet port and at least one solvent inlet port for introducing solvent to said cartridge;
- a valve spool, located concentrically within said housing, defining a mixing chamber and provided with at least one chemical pass-through port;
- and,
- a purge rod, slidably located within said valve spool and provided with a connection for coupling said purge rod to a drive mechanism;
- wherein said at least one chemical inlet port of said housing aligns with said at least one chemical pass-through port of said mixing chamber during chemical injection.
A method of using a chemical injection system, comprising:
- moving a purge rod;
- and,
- pumping solvent over an outlet of said chemical injection system by said moving of the purge rod.
A method of breaking reacted chemical build-up in a chemical injection system, comprising:
- commencing an over-travel movement of a purge rod towards an outlet of the chemical injection system thereby breaking any reacted chemical build-up;
- and,
- moving the purge rod away from the outlet.
A method of urging a chemical inlet port towards a valve spool located in a cartridge, comprising:
- providing at least one o-ring to an exterior surface of the chemical inlet port;
- installing said cartridge in a substance delivery apparatus, wherein by said installing said cartridge said at least one o-ring becomes compressed;
- and,
- wherein said compressed o-ring urges said chemical inlet port towards said valve spool.
A valve spool of a chemical injection system, comprising:
- a perforated solvent groove, wherein said perforated solvent groove is provided with at least one hole for the transmission of solvent therethrough.
A handheld chemical injection system, comprising:
- a motor;
- a drive mechanism operatively connected to said motor;
- and,
- more than one control mechanism for controlling an aspect of operation of said handheld chemical injection system.
A chemical injection system, comprising:
- a handheld portion, wherein said handheld portion injects chemicals;
- and,
- a display located on said handheld portion, wherein said display is operable to provide information regarding the chemical injection system.
A method of using a chemical injection system, comprising:
- moving a purge rod towards an “open” position;
- rotationally aligning a valve spool upon attainment of said “open” position, wherein a chemical pass-through port on said valve spool is aligned with a chemical inlet port located on a housing of said valve spool;
- moving said purge rod towards a “closed” position;
- and,
- misaligning the valve spool upon said moving the purge rod towards said “closed” position.
Dependencies are inferred from the claim text.