Pumps – Condition responsive control of pump drive motor – With control of pump drive transmission
Reexamination Certificate
2005-10-27
2009-06-23
Kramer, Devon C (Department: 3746)
Pumps
Condition responsive control of pump drive motor
With control of pump drive transmission
C417S212000, C417S218000, C417S223000, C417S423600, C417S319000
Reexamination Certificate
active
07549847
ABSTRACT:
A portable bulk transfer pump assembly (10) constructed in accordance with the principles of a preferred embodiment of the present invention is configured for transferring fluid (not shown) in bulk. The illustrated portable bulk transfer pump assembly (10) broadly includes a portable housing (12) that carries a pumping assembly (14). The portable housing (12) is sized and configured to both support the pumping assembly (14) and enable the entire pump assembly (10) to be readily and easily manually transported to and from pumping locations. The pumping assembly (14) is configured to pump low, medium, and high viscosity fluids utilizing a single pump (52) and a drive assembly (54) drivingly coupled to the pump (52) and selectively adjustable to operate the pump (52) at varying speeds. The illustrated drive assembly (54) includes a motor (80) and a variable speed transmission (82) disposed between the motor (80) and the pump (52).
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Dixon Pumps (available at: http://web.archive.org/web/20030814074034/http://www.dixonpumps.com/detail.shtml) published on Aug. 14, 2003, and visited on Nov. 28, 2007.
Excerpt from Liquidynamics' Fluid Handling Technology Catalog; Front and Back Cover Sheets and p. 53 (Published Prior to Oct. 27, 2005), Showing the Prior Art Single Speed Transfer Pump Cart for Medium Viscosities P/N 33267-20cg and the Prior Art High Volume Transfer Pump Cart for Light Viscosities P/N 33267.
Prior Art Sales Flier from Dixon Pumps, Blade Master.
Prior Art Sales Flier from Dismas Pumps.
U.S. Appl. No. 11/862,265 entitled Pump System Including a Variable Frequency Drive Controller; Filed: Sep. 27, 2007; Applicant: Russold, Frank et al.
Bobish Christopher
Hovey & Williams, LLP
Kramer Devon C
Liquidynamics, Inc.
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