US3633749A - Automatic swimming pool skimmer - Google Patents

Automatic swimming pool skimmer Download PDF

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US3633749A
US3633749A US30466A US3633749DA US3633749A US 3633749 A US3633749 A US 3633749A US 30466 A US30466 A US 30466A US 3633749D A US3633749D A US 3633749DA US 3633749 A US3633749 A US 3633749A
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cylinders
fluid
level
skimmed
collar
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US30466A
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Richard L Panosh
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • E04H4/1263—Floating skimmers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/918—Miscellaneous specific techniques
    • Y10S210/922—Oil spill cleanup, e.g. bacterial
    • Y10S210/923—Oil spill cleanup, e.g. bacterial using mechanical means, e.g. skimmers, pump

Definitions

  • ABSTRACT An upper cylinder and a lower cylinder attached to each other by means of a tapered rolled membrane. a tube connected to the lower cylinder for pumping out water, and a flotation collar secured to the upper cylinder for automatically pumping water which is skimmed from the surface of a swimming pool to a filter while adjusting to any variation in the swimming pool water level.
  • PATENTED JAN 1 1972 IN VEN TOR. 00/420 1 FAA 0M Arm/2,116 Y5.
  • AUTOMATIC SWIMMING POOL SKIMMER This invention relates to a simple but efficient device for skimming the surface of a body of water for such diverse purposes as cleaning a swimming pool, removing oil from a body of water, separation of different density fluids and chemicals, etc.
  • a primary object of this invention is a skimmer which automatically adjusts to any change in water level of the body of water being skimmed.
  • Another object of this invention is a skimmer which automatically adjusts to any change in rate that the skimmed water is pumped from the skimmer.
  • FIG. 1 is a cross-sectional view of the skimmer
  • FIG. 2 is a sectional view taken on line 2-2 of FIG. 1.
  • FIGS. 1 and 2 there is shown in FIGS. 1 and 2 an inner cylinder 20, a lower cylinder 22, and a rubber or vinyl membrane 24 connected between the opening 26 of cylinder 22 and bottom opening 28 of cylinder 20, membrane 24 being tapered to fit between the different sized openings 26 and 28 for a watertight fit.
  • Cylinder 22 is connected by means of a web 29 to a pipe 30 which allows water to be pumped out of the skimmer and directed to a filter or other apparatus for further treatment and usage depending upon what is being skimmed.
  • a flotation collar 32 is attached about the upper end of inner cylinder 20.
  • Lower cylinder 22 is fixed rigidly in place due to pipe 30, and membrane 24 allows upper cylinder to move freely in and out of lower cylinder 22 in order to adjust for water level and pumping rate changes.
  • membrane 24 rolls through itself without stretching during relative movement between cylinders 22 and 20.
  • flotation collar 32 forces inner cylinder 20 upward and tapered membrane 24 upward also.
  • Flotation collar 32 does not lift cylinder 20 above level 34 or 34' due to water pressure against the top surface 36 of the membrane 24.
  • the skimmer In addition to adjusting to the level of a body of water, the skimmer also adjusts to the pumping rate of the skimmed water which is directly proportional to the amount of water inside the skimmer.
  • differential pressure is zero on membrane 24 and the only force on inner cylinder 20 is provided by flotation collar 32 which lifts inner cylinder 20 above level 34 in order to cut off the flow of water into the skimmer and prevent the skimmed water from mixing with body 38.
  • the pumped capacity is increased, the head height of water in the skimmer falls and differential pressure on membrane 24 increases in the downward direction pulling inner cylinder 20 down and allowing water to be skimmed.
  • a fluid skimmer comprising a pair of cylinders having difl'erent diameters, one of said cylinders having a closed bottom and an open top, the other of said cylinders having both ends open, a tapered membrane connected between the open end of one of said cylinders and the open bottom end of the other of said cylinders forming a watertight fit with said cylinders and allowing said cylinders to slidably overlap with each other, a collar attached to the outer surface of said other cylinder near the upper end thereof, and a pipe extending below the level of a body of fluid and connected at the bottom of said pipe to said one of said cylinders, said other of said cylinders being positioned to overlap with the top portion of said one of said cylinders, said one of said cylinders being held at a uniform depth above the ground level of the body of fluid without regard to variations in the surface level of the body of fluid, the u1d pressure forcing said membrane to roll in one direction thereby moving said other of said cylinders in the

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Water Supply & Treatment (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

An upper cylinder and a lower cylinder attached to each other by means of a tapered rolled membrane, a tube connected to the lower cylinder for pumping out water, and a flotation collar secured to the upper cylinder for automatically pumping water which is skimmed from the surface of a swimming pool to a filter while adjusting to any variation in the swimming pool water level.

Description

United States Patent Richard L. Panosh 717 Front Street, Lisle, Ill. 60532 30,466
Apr. 21, 1970 Jan. 11, 1972 Inventor Appl. No. Filed Patented AUTOMATIC SWIMMING POOL SKIMMER 2 Claims, 2 Drawing Figs.
U.S. Cl 210/121, 210/DlG. 21, 210/169 Int. Cl B01d 17/00 Field of Search 2 l O/DlG.
[56] References Cited UNITED STATES PATENTS 2,989,185 '6/1961 Lombardi 210/169 3,428,178 2/1969 Nash 210/242 Primary Examiner-Reuben Friedman Assistant Examiner-Charles N. Hart Attorney- Victor J. Evans and Co.
ABSTRACT: An upper cylinder and a lower cylinder attached to each other by means ofa tapered rolled membrane. a tube connected to the lower cylinder for pumping out water, and a flotation collar secured to the upper cylinder for automatically pumping water which is skimmed from the surface of a swimming pool to a filter while adjusting to any variation in the swimming pool water level.
PATENTED JAN: 1 1972 IN VEN TOR. 00/420 1 FAA 0M Arm/2,116 Y5.
AUTOMATIC SWIMMING POOL SKIMMER This invention relates to a simple but efficient device for skimming the surface of a body of water for such diverse purposes as cleaning a swimming pool, removing oil from a body of water, separation of different density fluids and chemicals, etc.
A primary object of this invention is a skimmer which automatically adjusts to any change in water level of the body of water being skimmed.
Another object of this invention is a skimmer which automatically adjusts to any change in rate that the skimmed water is pumped from the skimmer.
The above and other objects of the invention will become apparent to those skilled in the art after a consideration of the following detailed description of the preferred embodiment of this invention taken together with the accompanying drawings in which:
FIG. 1 is a cross-sectional view of the skimmer; and
FIG. 2 is a sectional view taken on line 2-2 of FIG. 1.
Referring in detail to the drawing, there is shown in FIGS. 1 and 2 an inner cylinder 20, a lower cylinder 22, and a rubber or vinyl membrane 24 connected between the opening 26 of cylinder 22 and bottom opening 28 of cylinder 20, membrane 24 being tapered to fit between the different sized openings 26 and 28 for a watertight fit. Cylinder 22 is connected by means of a web 29 to a pipe 30 which allows water to be pumped out of the skimmer and directed to a filter or other apparatus for further treatment and usage depending upon what is being skimmed. A flotation collar 32 is attached about the upper end of inner cylinder 20. Lower cylinder 22 is fixed rigidly in place due to pipe 30, and membrane 24 allows upper cylinder to move freely in and out of lower cylinder 22 in order to adjust for water level and pumping rate changes.
Due to its taper, membrane 24 rolls through itself without stretching during relative movement between cylinders 22 and 20. When the level 34 of the body of water 36 rises to level 34', flotation collar 32 forces inner cylinder 20 upward and tapered membrane 24 upward also. Flotation collar 32 does not lift cylinder 20 above level 34 or 34' due to water pressure against the top surface 36 of the membrane 24.
In addition to adjusting to the level of a body of water, the skimmer also adjusts to the pumping rate of the skimmed water which is directly proportional to the amount of water inside the skimmer. Thus, when the water within cylinders 22 and 20 is as high inside the skimmer as outside, differential pressure is zero on membrane 24 and the only force on inner cylinder 20 is provided by flotation collar 32 which lifts inner cylinder 20 above level 34 in order to cut off the flow of water into the skimmer and prevent the skimmed water from mixing with body 38. As the pumped capacity is increased, the head height of water in the skimmer falls and differential pressure on membrane 24 increases in the downward direction pulling inner cylinder 20 down and allowing water to be skimmed.
While the preferred embodiment of this invention has been illustrated and described, it will be understood by those skilled in the art that modifications and changes may be resorted to without departing from the spirit and scope of the invention.
I claim:
1. A fluid skimmer, comprising a pair of cylinders having difl'erent diameters, one of said cylinders having a closed bottom and an open top, the other of said cylinders having both ends open, a tapered membrane connected between the open end of one of said cylinders and the open bottom end of the other of said cylinders forming a watertight fit with said cylinders and allowing said cylinders to slidably overlap with each other, a collar attached to the outer surface of said other cylinder near the upper end thereof, and a pipe extending below the level of a body of fluid and connected at the bottom of said pipe to said one of said cylinders, said other of said cylinders being positioned to overlap with the top portion of said one of said cylinders, said one of said cylinders being held at a uniform depth above the ground level of the body of fluid without regard to variations in the surface level of the body of fluid, the u1d pressure forcing said membrane to roll in one direction thereby moving said other of said cylinders in the same direction relative to the stationary said one of said cylinders, and said collar forcing said other of said cylinders in a direction opposite that produced by fluid pressure for keeping the upper open end of said other of said cylinders just below the surface level of the fluid body, the counterbalancing forces of the collar and the fluid pressure on said membrane in conjunction with the slidablc connection between said cylinders allow said other of said cylinders to move up and down in the alternative in relation to said one of said cylinders for automatically adjusting the top opening of said other of said cylinders to a position just below the surface level of a body of fluid as it varies in depth, and said pipe allowing the skimmed fluid to be pumped out of said cylinders.
2. The device of claim 1, wherein said other of said cylinders has a smaller diameter than said one of said cylinders and said collar is a flotation element causing said other of said cylinders to rise above the surface level of the body of fluid when the level of the skimmed fluid within said cylinders is the same as the surface level of the fluid body for automatically preventing the mixing of the skimmed fluid with the fluid body obviating the need for surveillance of the device and automatically allowing the skimmed fluid to be pumped from said cylinders by means of said pipe to reduce the skimmed fluid level prior to the lowering of said other of said cylinders below the body fluid level.

Claims (2)

1. A fluid skimmer, comprising a pair of cylinders having different diameters, one of said cylinders having a closed bottom and an open top, the other of said cylinders having both ends open, a tapered membrane connected between the open end of one of said cylinders and the open bottom end of the other of said cylinders forming a watertight fit with said cylinders and allowing said cylinders to slidably overlap with each other, a collar attached to the outer surface of said other cylinder near the upper end thereof, and a pipe extending below the level of a body of fluid and connected at the bottom of said pipe to said one of said cylinders, said other of said cylinders being positioned to overlap with the top portion of said one of said cylinders, said one of said cylinders being held at a uniform depth above the ground level of the body of fluid without regard to variations in the surface level of the body of fluid, the fluid pressure forcing said membrane to roll in one direction thereby moving said other of said cylinders in the same direction relative to the stationary said one of said cylinders, and said collar forcing said other of said cylinders in a direction opposite that produced by fluid pressure for keeping the upper open end of said other of said cylinders just below the surface level of the fluid body, the counterbalancing forces of the collar and the fluid pressure on said membrane in conjunction with the slidable connection between said cylinders allow said other of said cylinders to move up and down in the alternative in relation to said one of said cylinders for automatically adjusting the top opening of said other of said cylinders to a position just below the surface level of a body of fluid as it varies in depth, and said pipe allowing the skimmed fluid to be pumped out of said cylinders.
2. The device of claim 1, wherein said other of said cylinders has a smaller diameter than said one of said cylinders and said collar is a flotation element causing said other of said cylinders to rise above the surface level of the body of fluid when the level of the skimmed fluid within said cylinders is the same as the surface level of the fluid body for automatically preventing the mixing of the skimmed fluid with the fluid body obviating the need for surveillance of the device and automatically allowing the skimmed fluid to be pumped from said cylinders by means of said pipe to reduce the skimmed fluid level prior to the lowering of said other of said cylinders below the body fluid level.
US30466A 1970-04-21 1970-04-21 Automatic swimming pool skimmer Expired - Lifetime US3633749A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365014A1 (en) * 1976-09-17 1978-04-14 Clement Daniel Ladder for swimming pool - has filter unit fitted to fill gap between it and the pool wall, pref. fixed with PVC sheathed iron tube
US4126925A (en) * 1975-10-17 1978-11-28 Jacuzzi Bros. Incorporated Skimmer assembly
US4212740A (en) * 1978-06-02 1980-07-15 Kdi American Products, Inc. Floating weir and strainer basket construction
US4220530A (en) * 1979-05-29 1980-09-02 Gabriele Raymond S Fish tank filter
US4325150A (en) * 1980-09-22 1982-04-20 Buddy H E Pool surface skimming apparatus
US4405458A (en) * 1980-04-29 1983-09-20 Mchugh Jr Leo A Continuous flow, variable capacity self-compensating floating weir
US4498984A (en) * 1980-01-30 1985-02-12 Colson Andrew E Swimming pool apparatus
US4765889A (en) * 1987-04-06 1988-08-23 Lakeside Equipment Corporation Moving bridge filter - telescoping floating pot skimmer
FR2642461A1 (en) * 1989-01-27 1990-08-03 Jean Pierre Berard Overflow trough for skimming off the water of a pool
US5133854A (en) * 1990-07-13 1992-07-28 Tibor Horvath Skimmer with self-adjusting floating collector
US5135666A (en) * 1991-05-23 1992-08-04 Lucas James E Marine oil spill clean-up method using a motion compensator means
US5275721A (en) * 1993-02-08 1994-01-04 Oommen Mathews Swimming pool super-skimmer
GB2268091A (en) * 1992-06-22 1994-01-05 Kowa Kikai Sekkei Kogyo Kabush Float-actuated overflow
US5384033A (en) * 1994-03-08 1995-01-24 Baker Hughes Incorporated Floating inlet tube
US5413707A (en) * 1994-04-25 1995-05-09 Shatilov; Alexander Y. Aquarium surface sweep prefilter
US5527461A (en) * 1994-06-02 1996-06-18 Hill; Gordon A. Airlift oil scavenger
GB2312177A (en) * 1996-04-17 1997-10-22 Frembgen Fritz Herbert Device for removing the surface layer of liquids
WO2000059639A1 (en) * 1999-04-07 2000-10-12 Alfa Laval Ab A method and a device for separation of a surface layer of a liquid body
US20030164325A1 (en) * 2000-03-21 2003-09-04 Gustafsson Bengt Olof Device for separating a surface layer of a liquid
US20050133422A1 (en) * 2003-12-20 2005-06-23 Macwilliams Barry Jr. Apparatus and method for eliminating debris from a contained body of liquid
US20050170943A1 (en) * 2002-03-21 2005-08-04 Alfa Laval Corporate Ab Centrifugal separator
US20050236311A1 (en) * 2002-07-01 2005-10-27 Terrien Richard J Manually controlled skimming of industrial oil contaminants
US20150251110A1 (en) * 2012-10-11 2015-09-10 Suez Environnement Apparatus for clarifying a sludge-containing effluent
US9587360B2 (en) * 2010-06-25 2017-03-07 Green Iq Device and a method for removing a liquid from a water surface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989185A (en) * 1958-01-31 1961-06-20 Oliver M Lombardi Surface skimmer for swimming pools and method
US3428178A (en) * 1967-08-30 1969-02-18 Jacuzzi Bros Inc Skimmer assembly and included weir assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989185A (en) * 1958-01-31 1961-06-20 Oliver M Lombardi Surface skimmer for swimming pools and method
US3428178A (en) * 1967-08-30 1969-02-18 Jacuzzi Bros Inc Skimmer assembly and included weir assembly

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126925A (en) * 1975-10-17 1978-11-28 Jacuzzi Bros. Incorporated Skimmer assembly
FR2365014A1 (en) * 1976-09-17 1978-04-14 Clement Daniel Ladder for swimming pool - has filter unit fitted to fill gap between it and the pool wall, pref. fixed with PVC sheathed iron tube
US4212740A (en) * 1978-06-02 1980-07-15 Kdi American Products, Inc. Floating weir and strainer basket construction
US4220530A (en) * 1979-05-29 1980-09-02 Gabriele Raymond S Fish tank filter
US4498984A (en) * 1980-01-30 1985-02-12 Colson Andrew E Swimming pool apparatus
US4405458A (en) * 1980-04-29 1983-09-20 Mchugh Jr Leo A Continuous flow, variable capacity self-compensating floating weir
US4325150A (en) * 1980-09-22 1982-04-20 Buddy H E Pool surface skimming apparatus
US4765889A (en) * 1987-04-06 1988-08-23 Lakeside Equipment Corporation Moving bridge filter - telescoping floating pot skimmer
FR2642461A1 (en) * 1989-01-27 1990-08-03 Jean Pierre Berard Overflow trough for skimming off the water of a pool
US5133854A (en) * 1990-07-13 1992-07-28 Tibor Horvath Skimmer with self-adjusting floating collector
US5135666A (en) * 1991-05-23 1992-08-04 Lucas James E Marine oil spill clean-up method using a motion compensator means
GB2268091A (en) * 1992-06-22 1994-01-05 Kowa Kikai Sekkei Kogyo Kabush Float-actuated overflow
GB2268091B (en) * 1992-06-22 1995-10-18 Kowa Kikai Sekkei Kogyo Kabush Apparatus for discharge surface liquid
US5693218A (en) * 1992-06-22 1997-12-02 Kowa Kikai Sekkei Kogyo Kabushiki Kaisha Apparatus for discharge surface liquid
DE4319324B4 (en) * 1992-06-22 2005-10-13 Kowa Kikai Sekkei Kogyo K.K., Fukuyama Device for discharging surface fluid
US5275721A (en) * 1993-02-08 1994-01-04 Oommen Mathews Swimming pool super-skimmer
US5384033A (en) * 1994-03-08 1995-01-24 Baker Hughes Incorporated Floating inlet tube
US5413707A (en) * 1994-04-25 1995-05-09 Shatilov; Alexander Y. Aquarium surface sweep prefilter
US5527461A (en) * 1994-06-02 1996-06-18 Hill; Gordon A. Airlift oil scavenger
GB2312177A (en) * 1996-04-17 1997-10-22 Frembgen Fritz Herbert Device for removing the surface layer of liquids
WO2000059639A1 (en) * 1999-04-07 2000-10-12 Alfa Laval Ab A method and a device for separation of a surface layer of a liquid body
JP4938175B2 (en) * 1999-04-07 2012-05-23 アルファ ラヴァル コーポレイト アクチボラゲット Method and apparatus for separating the surface layer of a liquid body
US6802804B1 (en) 1999-04-07 2004-10-12 Alfa Laval Ab Method and a device for separation of a surface layer of a liquid body
US6905611B2 (en) 2000-03-21 2005-06-14 Alfa Laval Corporate Ab Device for separating a surface layer of a liquid
JP2003527956A (en) * 2000-03-21 2003-09-24 アルファ ラヴァル コーポレイト アクチボラゲット Apparatus for separating liquid surface layer
JP4786109B2 (en) * 2000-03-21 2011-10-05 アルファ ラヴァル コーポレイト アクチボラゲット Device for separating the surface layer of liquid
US20030164325A1 (en) * 2000-03-21 2003-09-04 Gustafsson Bengt Olof Device for separating a surface layer of a liquid
US20050170943A1 (en) * 2002-03-21 2005-08-04 Alfa Laval Corporate Ab Centrifugal separator
US7118521B2 (en) * 2002-03-21 2006-10-10 Alfa Laval Corporate Ab Centrifugal separator with conical pump inlet
US20050236311A1 (en) * 2002-07-01 2005-10-27 Terrien Richard J Manually controlled skimming of industrial oil contaminants
US7384548B2 (en) * 2002-07-01 2008-06-10 Terrien Richard J Manually controlled skimming of industrial oil contaminants
US20050133422A1 (en) * 2003-12-20 2005-06-23 Macwilliams Barry Jr. Apparatus and method for eliminating debris from a contained body of liquid
US9587360B2 (en) * 2010-06-25 2017-03-07 Green Iq Device and a method for removing a liquid from a water surface
US20150251110A1 (en) * 2012-10-11 2015-09-10 Suez Environnement Apparatus for clarifying a sludge-containing effluent
US9744481B2 (en) * 2012-10-11 2017-08-29 Suez Environnement Apparatus for clarifying a sludge-containing effluent

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