# US 10,767,776 B2 · Pressure relief valve with stop

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- Number: US 10,767,776 B2
- Document ID: US10767776B2
- Status: Granted
- Kind: B2
- Application number: 15/728,131
- Filed: 2017-10-09
- Published: 2019-04-11
- Granted: 2020-09-08
- Earliest claimed: 2017-10-09
- Assignees: Cyrus Shank Corporation
- Applicants: Cyrus Shank Corporation
- Inventors: Frank Kruppe; Matt Powell
- Web page: https://patentgrep.com/patent/US10767776B2

## CPC

- F16K 27/0209: {Check valves or pivoted valves}
- F16K 17/04: spring-loaded
- F16K 17/06: with special arrangements for adjusting the opening pressure
- F16K 15/026: {the valve member being a movable body around which the medium flows when the valve is open}
- F25B 2600/2525: Pressure relief valves
- 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)}
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS

## Abstract

A pressure relief valve with a stop disposed thereon to ensure components of the pressure relief valve are properly aligned and tightened properly. This allows the components and pressure relief valve to be properly installed and the pressure relief valve to function properly. The stop feature also reduces the time of installation and amount of labor needed to install pressure relief valves and their components.

## Claims

### Claim 1

A valve, comprising:
a valve body having inlet and outlet ports and defining a fluid flow path between the ports;
a valve seat disposed in the fluid flow path;
a pressure relief valve body disposed in and coupled to the valve body, wherein the pressure relief valve includes a relief port aligned with the outlet port;
a valve head disposed in the pressure relief valve body and biased into engagement with the valve seat, wherein the valve head is movable between an unactuated position, wherein the valve head is engaged with the valve seat, and an actuated position, wherein the valve head is disengaged with the valve seat; and
a stop extending radially outwardly and disposed proximate to an end of the pressure relief valve body opposite the valve seat, wherein the stop is adapted to provide a contact indication when the pressure relief valve body is coupled to the valve body and the relief port is aligned with the outlet port.

### Claim 2 (depends on 1)

The valve of claim 1, further comprising a guide disposed in the pressure relief valve body proximate to the valve head.

### Claim 3 (depends on 2)

The valve of claim 2, further comprising a bias member disposed in the pressure relief valve body, wherein the bias member biases the guide towards the valve head and the valve head into engagement with the valve seat.

### Claim 4 (depends on 3)

The valve of claim 3, further comprising a cap coupled to the end of the pressure relief valve body, and wherein the stop is disposed on the cap.

### Claim 5 (depends on 3)

The valve of claim 3, further comprising an adjustment member disposed in the pressure relief valve body, and the bias member is disposed between the adjustment member and the guide.

### Claim 6 (depends on 1)

The valve of claim 1, wherein the valve seat is disposed in the pressure relief valve body.

### Claim 7 (depends on 1)

The valve of claim 1, wherein the stop includes a protrusion extending radially outwardly from the pressure relief valve body, wherein the protrusion is adapted to contact a ledge of the valve body when the pressure relief valve body is coupled to the valve body.

### Claim 8 (depends on 1)

The valve of claim 1, wherein the pressure relief valve body includes a chamfer adapted to engage a corresponding chamfer of the valve body when the pressure relief valve body is coupled to the valve body.

### Claim 9

A valve, comprising:
a valve body having a relief port;
a valve seat disposed in the valve body upstream of the relief port;
a valve head disposed in the valve body and biased into engagement with the valve seat, wherein the valve head is movable between an unactuated position, wherein the valve head is engaged with the valve seat, and an actuated position, wherein the valve head is disengaged with the valve seat; and
a stop extending radially outwardly proximate to an end of the valve body opposite the valve seat, wherein the stop is adapted to provide a contact indication when the valve body is installed.

### Claim 10 (depends on 9)

The valve of claim 9, further comprising a guide disposed in the valve body proximate to the valve head.

### Claim 11 (depends on 10)

The valve of claim 10, further comprising a bias member disposed in the valve body, wherein the bias member biases the guide towards the valve head and the valve head into engagement with the valve seat.

### Claim 12 (depends on 11)

The valve of claim 11, further comprising a cap coupled to the end of the valve body, and wherein the stop is disposed on the cap.

### Claim 13 (depends on 11)

The valve of claim 11, further comprising an adjustment member disposed in the valve body, and the bias member is disposed between the adjustment member and the guide.

### Claim 14 (depends on 9)

The valve of claim 9, wherein the stop includes a protrusion extending radially outwardly from the valve body, wherein the protrusion is adapted to provide the contact indication when the valve body is installed.

### Claim 15 (depends on 9)

The valve of claim 9, wherein the valve body includes a chamfer adapted to engage a corresponding chamfer of a second valve body when the valve body is coupled to the second valve body.