# US 8,739,820 B1 · Pressure relief valve

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- Number: US 8,739,820 B1
- Document ID: US8739820B1
- Status: Granted
- Kind: B1
- Application number: 12/729,456
- Filed: 2010-03-23
- Granted: 2014-06-03
- Earliest claimed: 2010-03-23
- Assignees: Vecna Technologies, Inc.
- Applicants: Daniel Theobald; Michael Kokko
- Inventors: Daniel Theobald; Michael Kokko
- Web page: https://patentgrep.com/patent/US8739820B1

## CPC

- F16K 17/06: with special arrangements for adjusting the opening pressure
- F16K 15/08: shaped as rings
- F16K 15/18: with actuating mechanism; Combined check valves and actuated valves
- F16K 15/184: {Combined check valves and actuated valves}
- F16K 17/0486: {with mechanical actuating means}
- Y10T 137/7878: With bias adjustment indicator
- Y10T 137/7925: Piston-type valves
- Y10T 137/7929: Spring coaxial with valve
- Y10T 137/7935: Head slides on guide-rod concentric with spring
- F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)}
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A system, method and apparatus for enabling the release of pressure in a supply line including an electronic control member for controlling and enabling the release of pressure in the supply line at a desired pressure whether or not power is maintained to the electronic control member.

## Claims

### Claim 1

A mechanism for the relief of pressure within a supply line, comprising:
a housing member;
a first movable member in operable communication with the housing member;
an electronic control member for controlling and enabling the release of pressure in the supply line at a desired pressure whether or not power is maintained to the electronic control member; and
a relief rod including a substantially central chamber including at least two ports in operable communication with the first movable member, the electronic control member capable of adjusting the relief rod with respect to the housing and the first movable member to enable repositioning of the ports and the release of pressure via the ports and the substantially central chamber at a desired pressure whether or not power is maintained to the electronic control member.

### Claim 2 (depends on 1)

The mechanism as defined in claim 1, wherein the electronic control member operates independent of pressure existing in the mechanism.

### Claim 3 (depends on 2)

The mechanism as defined in claim 2, wherein the pressure existing in the mechanism includes supply line pressure.

### Claim 4 (depends on 2)

The mechanism as defined in claim 2, wherein the pressure existing in the system includes any mechanical pressure within the mechanism.