Foam dispensing gun
AssigneeUniversal Foam Systems, Inc.
InventorGary C. Harding
Life of this patent
Estimating the term…
Abstract
A foam dispensing gun of the type having a disposable nozzle for mixing and dispensing separate fluid components of a resin system. The nozzle is retained on the gun by a sliding breech which also pivotally supports a valve actuating trigger to be in an operative position when the breech is moved to retain a nozzle to the gun and disabled when the breech is moved to release the nozzle for reloading. The breech and trigger may be further arranged so that the trigger is inoperative in the absence of a nozzle on the gun.
Claims10
A foam dispensing gun adapted to be connected to separate pressurized fluid components to be mixed and dispensed from the gun, said gun comprising:
- a gun body having a pair of fluid passageways adapted to be connected to the respective pressurized fluid components, and a pair of nipples fixed to and projecting from said body on one of two mutually perpendicular axes, said nipples defining outlets for said passageways;
- valve means for controlling the flow of fluid components through said passageways to said nipples;
- a disposable nozzle having a pair of inlet openings to receive and establish fluid communication with said nipples;
- a breech slidable on said gun body in a direction parallel to the other of said two axes between a first position in which it is retracted to permit movement of the nozzle on said one directional axis so that said nipples are received in said inlet openings, a second position for retaining said nozzle in an operative orientation with respect to said gun body, and a third position forwardly of said second position from said first position in the absence of a nozzle member in said operative position;
- and
- trigger means pivotally supported from said breech to be in an operative position for actuating said valve means only when said breech is in said second position.
A foam dispensing gun adapted to be connected to separate pressurized fluid components to be mixed and dispensed from the gun, said gun comprising:
- a gun body having a pair of fluid passageways adapted to be connected to the respective pressurized fluid components, and means defining outlets for said passageways;
- independent valve means in each of said passageways for regulating the rate of fluid component flow to said outlets, respectively, each of said valve means having an actuating stem projecting from said body;
- a disposable nozzle member having means to define a pair of inlets adapted for releasable coupling with said outlets;
- means to releasably retain said nozzle member in an operative orientation with respect to said gun body;
- and
- trigger means pivotally supported for movement between an operative condition relative to said valve stems for control of said valve means jointly and an inoperative condition clear of said valve stems to enable free manual access to said valve stems when said trigger means is in said inoperative condition, said trigger means having adjustable valve stem engaging means for controlling the relative rate of fluid component flow to said outlets, respectively, upon actuation of said trigger means in said operative condition.
Dependencies are inferred from the claim text.