Mount de-actuated safety mechanism

Patent metadata

Field	Value
Publication number	US-9974988-B2
Application number	US-201615191917-A
Country	US
Kind code	B2
Filing date	Jun 24, 2016
Priority date	Jun 24, 2016
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

A valve assembly includes a valve with a valve body and chamber. A poppet with a stem and piston is slidably engaged inside the valve body. A poppet release mechanism is included for releasing the poppet from a closed position. A mechanism cover is attached to the valve body. A safety mechanism with a pin, spring, and lever is included for preventing the poppet from moving into a fully open position. A first end of the pin extends into the chamber into a pathway of the poppet and a second end of the pin extends into the valve body of the valve. The spring is positioned between and in contact with the pin and the mechanism cover to bias the pin toward the poppet. A first end of the lever is pivotably attached to the pin and a second end of the lever extends out from the valve body.

First claim

The invention claimed is:

1. A valve assembly comprising:
a valve with a valve body and a chamber;
a poppet positioned in the valve and slidably engaged with the valve body, wherein the poppet comprises a stem and a piston;
a poppet release mechanism for releasing the poppet from a closed position;
a mechanism cover attached to the valve body; and
a safety mechanism for preventing the poppet from moving into a fully open position unless the safety mechanism is disengaged, wherein the safety mechanism comprises:
a pin positioned such that a first end of the pin extends into the chamber of the valve into a pathway of the poppet and a second end of the pin extends into the valve body;
a spring positioned between and in contact with the pin and the mechanism cover, wherein the spring biases the pin toward the poppet; and
a lever, wherein a first end of the lever is pivotably attached to the pin and a second end of the lever extends out from the valve body so that the lever will maintain the pin in a blocking position until the second end of the lever is pushed and the first end of the lever translates the pin out of the blocking position and into an un-blocking position.

2. The valve assembly of claim 1 , further comprising:
a sensor disposed in the valve body and adjacent to the pin, wherein the sensor identifies a position of the pin by sensing whether the pin is in contact with the sensor.

3. The valve assembly of claim 2 , wherein the pin further comprises:
an angled portion on the second end of the pin, the angled portion configured to come into contact with the sensor.

4. The valve assembly of claim 1 , further comprising:
a bushing disposed in the valve body, wherein the bushing surrounds the pin, and further wherein the bushing comprises a malleable metal material.

5. The valve assembly of claim 1 , further wherein a pivot of the lever is positioned between the first and second ends of the lever such that as the second end of the lever is moved the first end of the lever is moved and the pin is translated.

6. The valve assembly of claim 1 , wherein the lever extends across a neck portion that spans across a distance of an inlet of the valve.

Assignees

• Kidde Tech Inc

Inventors

• Baxendell Doug John
• Frasure David William

Classifications

• A62C3/07 Primary

  in vehicles, e.g. in road vehicles · CPC title

• A62C35/68

  Details, e.g. of pipes or valve systems (valves in general F16K) · CPC title

• A62C35/023

  the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas (for foam generation A62C5/02) · CPC title

• A62C13/64

  the extinguishing material being released by means of a valve · CPC title

• F16K35/06

  using a removable actuating or locking member, e.g. a key (F16K35/10, F16K35/12 take precedence) · CPC title