Digital pressure gauge

• US 20030029246A1
• Filed: 08/13/2001
• Published: 02/13/2003
• Est. Priority Date: 08/13/2001
• Status: Active Grant

• Current Assignee: Michael Yeh
• Original Assignee: Michael Yeh
• Inventors: Yeh, Michael
• Granted Patent: US 7,117,746 B2
• Time in Patent Office: Days
• US Class Current: 73/755
• CPC Class Codes: G01L 27/007 Malfunction diagnosis, i.e. diagnosing a sensor defect

Abstract

A digital pressure gauge comprises a power supply, an input button unit, a pressure sensor, a display unit, a warming unit, and a control unit. The control unit counts an operation times and/or operation duration of the digital pressure gauge and generates alarm through the display unit and the warming unit when the counted operation times and/or operation duration of the digital pressure gauge exceeds a threshold.

Claims

1. A digital pressure gauge with prompting and/or warming function, comprising

a power supply providing electrical power to the digital pressure gauge;

an input button unit enabling user to operate the digital pressure gauge;

a pressure sensor used to sense a pressure and generate a corresponding signal;

a warming unit for generating a warming message;

a display unit used to display a pressure value and the warming message;

a control unit connected to the power supply, the pressure sensor, the input button unit, and having an output connected to the display unit, and the warming unit;

the control unit counting an operation times and/or operation duration of the digital pressure gauge and generating alarm through the display unit and the warming unit when the counted operation times and/or operation duration of the digital pressure gauge exceeds a threshold.

2. The digital pressure gauge as in claim 1, wherein the warming unit can warm user by sound, lighting, vibration or the combination thereof.

3. The digital pressure gauge as in claim 1, wherein the threshold can be modified before selling or by user.