Valve actuator
AssigneeGraco Minnesota Inc.
InventorsJonathan R. McMichael, Steven R. Sinders
Life of this patent
Estimating the term…
Abstract
A dispensing gun has a gun body, a first component inlet, a second component inlet, a dispense head, a first valve, a second valve, a clamp, and a trigger. The component inlets are attached to the gun body for receiving components. The dispense head is for dispensing the components. The valves are attached to the gun body and there are valve stems for controlling the dispensing of the components. The clamp has an upper portion and a lower portion, with the first and second valve stems positioned in between the upper and lower portions. The two portions are attached such that the first and second valve stems move with movement of the valve actuator in a direction parallel to the axes of the valve stems. The trigger is attached to the gun body and controls movement of the clamp.
Claims20
A dispensing gun comprising:
- a gun body;
- a first component inlet attached to the gun body for receiving a first component;
- a second component inlet attached to the gun body for receiving a second component;
- a dispense head for dispensing the first and second components from the dispensing gun;
- a first valve attached to the gun body having a first valve stem for controlling flow of the first component to the dispense head;
- a second valve attached to the gun body having a second valve stem for controlling flow of the second component to the dispense head, with the second valve stem being parallel to the first valve stem;
- a clamp having a first portion and a second portion, wherein the first valve stem and the second valve stem are positioned in between the first portion and the second portion, with the first portion being attached to the second portion such that the first valve stem and the second valve stem move with movement of the clamp in a direction parallel to the axes of the valve stems;
- and
- a trigger rotatably attached to the gun body for controlling movement of the clamp.
A valve assembly comprising:
- a first valve having a first valve stem for controlling dispensing of a first component;
- a second valve having a second valve stem for controlling dispensing of a second component, where the second valve stem is parallel to the first valve stem;
- and
- a valve actuator clamped to the first and second valve stems to open the first and second valves by jointly moving the first and second valve stems, the valve actuator including:
- a first slot for attaching the valve actuator to the first valve stem, the first slot having a corresponding shape to the first valve stem and being parallel to the first valve stem;
- and
- a second slot for attaching the valve actuator to the second valve stem, the second slot having a corresponding shape to the second valve stem and being parallel to the second valve stem;
- a first hole that is located near a first side of the valve actuator for receiving a first set screw, the first hole being parallel to the first valve stem;
- and
- a second hole that is located near a second side of the valve actuator, that is opposite the valve actuator from the first hole, the second hole for receiving a second set screw, the second hole being parallel to the first hole.
A valve assembly comprising:
- a trigger with a first cam and a second cam;
- a first valve having a first valve stem for controlling the dispensing of a first component;
- a second valve having a second valve stem that is parallel to the first valve stem, for controlling the dispensing of a second component;
- a valve actuator having:
- a first portion having a first slot for the first valve stem and a second slot for the second valve stem;
- and
- a second portion that is attached to the first portion that clamps the first valve stem in the first slot and the second valve stem in the second slot;
- a first push pin that contacts the first cam and the valve actuator, the first push pin being parallel to the first valve stem;
- a second push pin that contacts the second cam and the valve actuator, the second push pin being parallel to the first push pin.
Dependencies are inferred from the claim text.