Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver
Reexamination Certificate
2011-01-25
2011-01-25
Kramer, Devon C (Department: 3746)
Pumps
Condition responsive control of pump drive motor
Responsive to accumulation of pumped liquid in receiver
C417S044200
Reexamination Certificate
active
07874810
ABSTRACT:
A water pressurizing pump includes a pump mounted in a compartment of a water tank for pressurizing and outputting water. The compartment is sealed by a cover having a first channel in communication between the compartment and a water supply coupler and a second channel having an end in communication with the first channel. A pressure tank is mounted to the other end of the second channel of the cover. A differential pressure valve unit is slideably mounted in the pressure tank adjacent to the second channel. The differential pressure valve unit is movable by the high water pressure in the second channel to allow water from the second channel to enter the pressure tank.
REFERENCES:
patent: 3922111 (1975-11-01), Deters
patent: 4247260 (1981-01-01), Schonwald et al.
patent: 4659291 (1987-04-01), Valdes
patent: 5190443 (1993-03-01), Valdes
patent: 5771921 (1998-06-01), Johnson
patent: 5947690 (1999-09-01), Snel et al.
patent: 6227241 (2001-05-01), Snel et al.
patent: 6305416 (2001-10-01), Snel et al.
Bertheaud Peter J
Kramer Devon C
Wang Li K.
Wang Law Firm, Inc.
LandOfFree
Constant pressure pressurizing water pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Constant pressure pressurizing water pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constant pressure pressurizing water pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2666389