Ergonomic pressure calibration pump

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Description

This pump incorporates easy to use handles, a vernier knob to adjust pressure, and inside the vernier knob is the pressure relief valve which relives the pressure created. The created pressure, is used in conjunction with a sensor to be tested, and a pressure calibrator. The reservoir is a shatterproof, transparent, tapered container which makes viewing the liquid used for pressurization easier to see.

FIG. 1 is a front elevational view of an ergonomic hydraulic pressure calibration pump showing my new design.

Claims

The ornamental design for an ergonomic pressure calibration pump, as shown and described.

Referenced Cited
U.S. Patent Documents
D358397 May 16, 1995 Phillips et al.
D476655 July 1, 2003 Liu
D487899 March 30, 2004 Poon
D510939 October 25, 2005 Nikolayev et al.
D554152 October 30, 2007 Ratner
Patent History
Patent number: D581950
Type: Grant
Filed: Jun 25, 2007
Date of Patent: Dec 2, 2008
Inventor: Cary Ratner (East Hills, NY)
Primary Examiner: R. Seifert
Application Number: 29/288,819
Classifications
Current U.S. Class: Pump Or Compressor (D15/7)