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US 11,717,840 B2Granted
Metal foam dispenser and method of use for polyurethane foam dispensing
AssigneeFoam Supplies, Inc.
InventorsJames Daniel Kalinich, Todd A. Keske, Christopher Price Miller, Kyle Evan Myers
Life of this patent
Estimating the term…
Abstract
A foam dispenser having a metal housing has a spool valve socket therein. A metal handle extends from the housing. A spool valve is disposable within the spool valve socket. A trigger couplable to the spool valve enables the spool valve to be rotated between open and closed orientations within the housing. The spool valve has internal channels for selectively passing liquids through the spool valve in the open orientation and not in the closed orientation. The spool valve also has a channel for selectively passing a gas through the spool valve in both the open and closed orientations.
Claims23
A foam dispenser, comprising:
- a metal housing comprising:
- an inlet end, an outlet end, and a spool valve socket intermediate the inlet end and the outlet end, the spool valve socket extending laterally between opposite sides of the housing;
- plural inlet channels formed in the metal housing intermediate the inlet end and the spool valve socket;
- and
- plural outlet channels formed in the metal housing intermediate the spool valve socket and the outlet end, the plural outlet channels including a plurality of first outlet channels and at least one second outlet channel;
- a metal handle in mechanical communication with the metal housing proximate the inlet end thereof;
- a substantially cylindrical spool valve having first and second opposite ends and selectively rotatable within the spool valve socket between an open orientation and a closed orientation, wherein the spool valve defines plural first channels and at least one second channel therein, the at least one second channel having two second channel inlets and two second channel outlets, the plural first channels configured to channel fluid towards the plurality of first outlet channels when the spool valve is in the open orientation, the at least one second channel configured to channel fluid from one of the two second channel inlets and through one of the two second channel outlets not axially aligned with the one of the two second channel inlets towards the at least one second outlet channel with which it is in fluid communication when the spool valve is in the open orientation and configured to channel fluid from the other of the two second channel inlets towards the plurality of first outlet channels with which it is in fluid communication when the spool valve is in the closed orientation;
- a trigger mechanically couplable to the first and second opposite ends of the spool valve;
- a resilient member intermediate the trigger and at least one of the housing and the handle for mechanically biasing the trigger away from the handle when the spool valve is disposed within the spool valve socket and the trigger is coupled to the first and second opposite ends of the spool valve;
- and
- a mix tube adapter at the outlet end of the housing configured for selective mechanical engagement of a mix tube to the outlet end of the metal housing, the mix tube having an inlet in registration with the plural outlet channels in the metal housing outlet end when engaged therewith.
8 more elements
A method of generating foam, comprising:
- providing a foam dispenser comprising:
- a metal housing comprising:
- an inlet end, an outlet end, and a spool valve socket intermediate the inlet end and the outlet end, the spool valve socket extending laterally between opposite sides of the housing;
- plural inlet channels formed in the metal housing intermediate the inlet end and the spool valve socket;
- and
- plural outlet channels formed in the metal housing intermediate the spool valve socket and the outlet end, the plural outlet channels including a plurality of first outlet channels and at least one second outlet channel;
- a metal handle in mechanical communication with the metal housing proximate the inlet end thereof;
- a substantially cylindrical spool valve having first and second opposite ends and selectively rotatable within the spool valve socket between an open orientation and a closed orientation, wherein the spool valve defines plural first channels and at least one second channel therein, the at least one second channel having two second channel inlets and two second channel outlets, the plural first channels configured to channel fluid towards the plurality of first outlet channels when the spool valve is in the open orientation, the at least one second channel configured to channel fluid from one of the two second channel inlets and through one of the two second channel outlets not axially aligned with the one of the two second channel inlets towards the at least one second outlet channel with which it is in fluid communication when the spool valve is in the open orientation and configured to channel fluid from the other of the two second channel inlets towards the plurality of first outlet channels with which it is in fluid communication when the spool valve is in the closed orientation;
- a trigger mechanically couplable to the first and second opposite ends of the spool valve;
- a resilient member intermediate the trigger and at least one of the housing and the handle for mechanically biasing the trigger away from the handle when spool valve is disposed within the spool valve socket and the trigger is coupled to the first and second opposite ends of the spool valve;
- and
- a mix tube adapter at the outlet end of the housing configured for selective mechanical engagement of a mix tube to the outlet end of the metal housing, the mix tube having a static mixer therein and an inlet in registration with the plural outlet channels in the metal housing outlet end when engaged therewith;
- and
- selectively actuating the trigger to rotate the spool valve within the spool valve socket from a closed orientation to an open orientation, whereby liquid provided by the liquid supply lines is flowable through the spool valve to the outlet end.
11 more elements
Dependencies are inferred from the claim text.