# US 12,111,222 B2 · Manifold assembly digital pressure gauge adapter

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- Number: US 12,111,222 B2
- Document ID: US12111222B2
- Status: Granted
- Kind: B2
- Application number: 17/594,091
- Filed: 2020-04-01
- Published: 2022-06-02
- Granted: 2024-10-08
- Earliest claimed: 2019-04-02
- Assignees: Aspen Pumps Limited
- Applicants: Aspen Pumps Limited
- Inventors: Merlin Milner; Chris Forshaw
- Web page: https://patentgrep.com/patent/US12111222B2

## CPC

- F25B 25/00: Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- G01L 9/06: of piezo-resistive devices
- G01L 19/003: {using a detachable interface or adapter between the process medium and the pressure gauge}
- G01L 19/086: {for remote indication}
- G01L 19/16: Dials; Mounting of dials
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G)

## Abstract

The present application provides an adapter (20) for a manifold gauge assembly (1) for use on a fluid system, for example an HVAC-R system. The manifold gauge assembly (1) comprises a manifold (3) for connection to the fluid system, and a pressure gauge (14) arranged to detect a fluid pressure in the manifold (3). The adapter (20) comprises a tube (23) having connectors (27, 28) for fluidly connecting the adapter (20) to the pressure gauge (14) and to the manifold (3). The adapter also includes an electronic pressure sensor (21) arranged to detect a fluid pressure in the tube (23), and a communications unit (22) configured to receive data from the electronic pressure sensor (21) and to communicate with a remote device (32).

## Claims

### Claim 1

A manifold gauge assembly for use on a fluid system, for example an HVAC-R system, the manifold gauge assembly comprising:
a manifold for connection to the fluid system,
a pressure gauge arranged to detect a fluid pressure in the manifold, the pressure gauge comprising a display to display a detected pressure,
an electronic pressure sensor arranged to detect a pressure between the manifold and the pressure gauge, and
a communications unit arranged to receive data from the electronic pressure sensor and to communicate with a remote device,
wherein the electronic pressure sensor is disposed between the manifold and the pressure gauge, and
wherein the manifold gauge assembly comprises a connecting tube disposed between the manifold and the pressure gauge, the connecting tube comprising a connector for removably connecting the pressure gauge to the connecting tube, and wherein the electronic pressure sensor is disposed in the connecting tube.

### Claim 2 (depends on 1)

The manifold gauge assembly of claim 1, wherein the connecting tube further comprises a connector for removably connecting the connecting tube to the manifold.

### Claim 3 (depends on 1)

The manifold gauge assembly of claim 1, wherein the connecting tube further comprises an opening, and wherein the electronic pressure sensor is disposed in the opening.

### Claim 4 (depends on 1)

The manifold gauge assembly of claim 1, further comprising:
a first pressure gauge arranged to detect a first fluid pressure in the manifold, and a second pressure gauge arranged to detect a second fluid pressure in the manifold, wherein each of the first pressure gauge and the second pressure gauge comprises a display to display a detected pressure,
and wherein the manifold gauge assembly further comprises a first electronic pressure sensor arranged to detect pressure between the manifold and the first pressure gauge, and a second electronic pressure sensor arranged to detect pressure between the manifold and the second pressure gauge.

### Claim 5 (depends on 4)

The manifold gauge assembly of claim 4, wherein the communications unit is configured to receive data from the first electronic pressure sensor and from the second electronic pressure sensor.

### Claim 6 (depends on 4)

The manifold gauge assembly of claim 4, comprising a first communications unit configured to receive data from the first electronic pressure sensor, and a second communications unit configured to received data from the second electronic pressure sensor.

### Claim 7 (depends on 1)

The manifold gauge assembly of claim 1, wherein the pressure gauge comprises an analog pressure gauge, and wherein the display comprises a dial.

### Claim 8 (depends on 1)

The manifold gauge assembly of claim 1, wherein the pressure gauge comprises an electronic pressure gauge having an electronic pressure sensor, and wherein the display comprises a digital display.