U.S. patent application number 11/962230 was filed with the patent office on 2009-06-25 for sewage pump.
Invention is credited to Robert M. Keener.
Application Number | 20090162219 11/962230 |
Document ID | / |
Family ID | 40788863 |
Filed Date | 2009-06-25 |
United States Patent
Application |
20090162219 |
Kind Code |
A1 |
Keener; Robert M. |
June 25, 2009 |
Sewage Pump
Abstract
A sewage pump has a shaft with an upward rotor penetrating a
dividing ring base at a top end of the combination housing to
integrate with a centrifugal switch. Two opposite sides inside the
dividing ring base respectively have supporting elements to make a
start capacitor and a run capacitor been supported therebetween so
that each element within the combination housing on the dividing
ring base has optimum orientation and arrangement.
Inventors: |
Keener; Robert M.; (Ashland,
OH) |
Correspondence
Address: |
KAMRATH & ASSOCIATES P.A.
4825 OLSON MEMORIAL HIGHWAY, SUITE 245
GOLDEN VALLEY
MN
55422
US
|
Family ID: |
40788863 |
Appl. No.: |
11/962230 |
Filed: |
December 21, 2007 |
Current U.S.
Class: |
417/410.1 |
Current CPC
Class: |
F04B 17/03 20130101 |
Class at
Publication: |
417/410.1 |
International
Class: |
F04B 17/03 20060101
F04B017/03 |
Claims
1. A sewage pump comprising a pump housing, a central rotor and a
surrounding stator accommodated in the pump housing, a dividing
ring base attached to one end of the pump housing to combine with a
start capacitor and a run capacitor; improvement of the sewage pump
comprises: the central rotor faces upward and has a shaft
penetrating the dividing ring base to integrate with a centrifugal
switch.
2. The sewage pump as claimed in claim 1, wherein improvement of
the sewage pump further comprises: two supporting elements are
attached two sides of the dividing ring base respectively to
support the start capacitor and the run capacitor so that each
element in the sewage pump has optimum orientation and
arrangement.
3. The sewage pump as claimed in claim 2, wherein each of the two
supporting elements has a sleeving element being a loop to hold the
start capacitor or the run capacitor.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a sewage pump, and more
particularly to a sewage pump that has a shaft with an upward rotor
penetrating a dividing ring base on a top end of a combination
housing to integrate with a centrifugal switch and has two
supporting elements respectively attached to two opposite sides
inside the dividing ring base to support a start capacitor and a
rung capacitor therebetween so that each element has optimum
orientation and arrangement.
[0003] 2. Description of Related Art
[0004] A conventional sewage pump in accordance with the prior art,
as shown in FIG. 1, its combination comprises a pump housing 10
having rotor at center and a cylindrical stator surrounding around
the rotor (not shown). One end of the pump housing 10 combines with
a dividing ring base 20 to assemble a start capacitor 30 and a run
capacitor 40 thereon. Moreover, upper and lower ends are further
combined with relative accessories to achieve the sewage pump
combination to provide power for treating sewage. After, the
conventional sewage pump has some drawbacks needed to be resolved
such as the start capacitor 30 is easily burned and has short
lifespan because it is suspended in ON operation.
SUMMARY OF THE INVENTION
[0005] One main objective of the present invention is to provide a
sewage pump that has a shaft with an upward rotor penetrating a
dividing ring base at a top end of the combination housing to
integrate with a centrifugal switch.
[0006] Another main objective of the present invention is to
provide a sewage pump that further has two supporting elements
respectively attached to two opposite sides within the dividing
ring base to support a start capacitor and a run capacitor
therebetween so that each element in the sewage pump has optimum
orientation and arrangement.
[0007] To achieve the foregoing objectives, the sewage pump
comprises a pump housing, a central rotor and a surrounding stator
accommodated in the pump housing, a dividing ring base attached to
one end of the pump housing to combine with a start capacitor and a
run capacitor;
[0008] improvements of the sewage pump comprise:
[0009] the central rotor faces upward and has a shaft penetrating
the dividing ring base to integrate with a centrifugal switch;
[0010] two supporting elements are attached two sides of the
dividing ring base respectively to support the start capacitor and
the run capacitor so that each element in the sewage pump has
optimum orientation and arrangement.
[0011] Further benefits and advantages of the present invention
will become apparent after a careful reading of the detailed
description with appropriate reference to the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a perspective view of parts of a conventional
sewage pump in accordance with the prior art;
[0013] FIG. 2 is cross-sectional view of a sewage pump system in
accordance with the present invention;
[0014] FIG. 3 is an exploded perspective view of elements in the
sewage pump in FIG. 2;
[0015] FIG. 4 is a schematic operational view showing that a shaft
with a rotor penetrates a dividing ring base; and
[0016] FIG. 5 is a schematic operational view showing that two
supporting elements on the dividing ring base support a start
capacitor and a run capacitor therebetween.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0017] A sewage pump in accordance with the present invention
comprises a shaft with an upward rotor penetrating a dividing ring
base at a top end of the combination housing to integrate with a
centrifugal switch. Two opposite sides inside the dividing ring
base have two supporting elements respectively to make a start
capacitor and a run capacitor been secured thereon between the two
supporting elements so that each element within the dividing ring
base has optimum orientation and arrangement.
[0018] With reference to FIGS. 2 and 3, a preferred first
embodiment of a sewage pump comprises a pump housing 11, a central
rotor 12 and a surrounding stator 13 mounted inside the pump
housing, a dividing ring base 14 attached to one end of the pump
housing 11, a centrifugal switch 3 with a start capacitor to
operationally cut off the power supply, a top abutting plate 15
covering the centrifugal switch 3, and two covers 16 respectively
attached to upper and lower ends of the pump housing 11 to achieve
the sewage pump combination 1.
[0019] When the foregoing-mentioned elements are assembled (as
shown in FIGS. 2 to 4), the central rotor 12 and the surrounding
stator 13 are accommodated inside the pump housing 11. One end of
the pump housing 11 is to combine with a dividing ring base 14. The
rotor 12 has a shaft 121 penetrating a through hole 141 within the
dividing ring base 14 (as shown in FIG. 4) to cooperate with a
centrifugal switch 3 sleeving and secured at a top of the shaft 121
by a cushion 31 and threads 32 to combine together (as shown FIG.
2). A top surface of the centrifugal switch 3 is attached to a top
abutting plate 15 rested on multiple dividing frames 142 on the
dividing ring base 14 and positioning by threads (as shown in FIG.
2). Two supporting elements 143 are formed on the dividing ring
base 14 respectively at two opposite sides on the same surface with
the dividing frames 142. Two sleeving elements 144 are mounted on
the two supporting elements 143 respectively. Each sleeving element
is a loop to hold the start capacitor 21 or the run capacitor 22 on
the corresponding supporting element 143 so that the capacitors 21,
22 are arranged between the two supporting elements 143 (as shown
in FIG. 5) to complete the sewage pump combination 1. Thereby, each
element in the sewage pump combination 1 has optimum orientation
and arrangement.
[0020] Although this invention has been described in its preferred
form with a certain degree of particularity, it is understood that
the present invention of the preferred form has been made only by
way of example and that numerous changes in the details of
construction and the combination and arrangement of parts any be
resorted to without departing from the spirit and scope of the
invention.
* * * * *