US3318075A - Vacuum cleaner - Google Patents

Vacuum cleaner Download PDF

Info

Publication number
US3318075A
US3318075A US448551A US44855165A US3318075A US 3318075 A US3318075 A US 3318075A US 448551 A US448551 A US 448551A US 44855165 A US44855165 A US 44855165A US 3318075 A US3318075 A US 3318075A
Authority
US
United States
Prior art keywords
pipe
tank
vacuum cleaner
valve
vacuum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US448551A
Inventor
Curtis L Wilson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US448551A priority Critical patent/US3318075A/en
Application granted granted Critical
Publication of US3318075A publication Critical patent/US3318075A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/04—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air
    • 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
    • Y10S55/00—Gas separation
    • Y10S55/09—Radioactive filters
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve

Definitions

  • the present invention relates to a Vacuum cleaner and more in particular to a vacuum cleaner which deposits collected waste directly into a sewer or other disposal means, which employs a liquid spray to clean the filter and without handling by human hands.
  • the vacuum cleaner of this invention is designed to be used as a central vacuum cleaning system for removal and disposal of Waste, dust, dirt, filth or debris and consists briefly, of a tank having a conventional filter therein, a vacuum pump for producing vacuum therein, an outlet connected to a sewer or other disposal means, a hose connected to the tank and to the cleaning inlet or inlets.
  • a spraying means in the tank connected to independent supplies of liquid and cleaning mediums is used to fiush the tank and the filter.
  • the device is operable without handling by human hands and is especially applicable for removal of radioactive Waste or toxic matter. Touching or handling the waste is entirely eliminated and the cleaner is adaptable for use in atomic installations and hospitals, as well as factories or barracks.
  • the tank would be connected to a domestic water supply and a tank of liquid containing soaps, detergents or other solutions necessary for fiushing, cleaning, neutraliz ing, decontaminating, etc., of the tank and filter.
  • a further object is to provide a vacuum cleaner that may be connected directly to a sewer or other disposal.
  • a final object is to provide a vacuum cleaner that is connected to sources of desired detergents, liquids or solutions, etc.
  • the single figure illustrates in elevation, with parts broken away, the vacuum cleaner of this invention.
  • reference character 1 designates generally the vacuum cleaner of this invention.
  • the vacuum cleaner consists of a tank, indicated generally -by 2.
  • Tank 2 may be constructed of two parts for sake of assembly and includes an upper shell 3 and a lower shell 4. Shells 3 and 4 are shown to be secured together yby screws 5.
  • Lower shell 4 is provided with an offset portion 6 which provides a shelf 7 for the support of a conventional type filter 8 which may be Fiberglas, etc.
  • An annular ring 9 may be provided to prevent any upward movement of the filter.
  • a vacuum pump 10 is in connection with upper shell 3 by a pipe 11.
  • An air exhaust pipe 12 is provided to direct the exhaust air to a suitable location as is expedient.
  • a pipe 13 which leads from lower shell 4 to a sewer or the like waste disposal, not shown.
  • Valve 14 while shown to be of the poppet type may be any other type which is suitable, such as a fiap valve, etc., the poppet type valve being shown by way of example only.
  • the valve 14 has a stem 16 slidable in a guide 17 which is supported by a cross rod 18 fixed in the side walls of chamber 15.
  • the valve ⁇ 14 is urged into a seated, or closed position by a spring 19 which encircles stem 16.
  • a second pump 20 may be connected in disposal pipe 13 to pump the Waste in lower shell 4 down into the disposal location.
  • a hose 21 is connected to lower shell 4 and is for the purpose of admitting waste material which is drawn in lower shell 4 by vacuum.
  • This hose may -be coupled to lower shell 4 by suitable means.
  • an integral collar 22 is provided in the side Wall of lower shell 4 and the hose 21 is secured therein by screws 23.
  • a fiap valve 24 normally closes the hose 21 when there is no vacuum present in the cleaner 1.
  • Means for admitting cleaning liquid, under pressure, and detergents also under pressure are provided and consists of an annular pipe 25 having holes 26 therein.
  • Pipe 25 may ⁇ be supported in the upper shell 3, above filter 8, by any suitable means, such as hangers 27.
  • Annular pipe 25 is connected by a pipe 28 to a Tcoupling 29.
  • a pair of pipes 30 and 31 are in connection with T-coupling 29 ⁇ and have valves 32 and 33 mountedv thereon.
  • pump 10 When it is desired to empty the tank 2 of its waste material, pump 10 is shut down and pump 20 is operated. This causes poppet Valve 14 to be opened by vacuum and the Waste material is forced into a sewer or like disposal, not shown.
  • Tank 2 may also be emptied without benefit of pump 20 if desired, since, when lower shell 4 becomes overloaded with waste material, the Weight thereof will overcome the bias of spring 19 and cause valve 14 to be pushed open and the material will fall by gravity into the pipe 13. Other means may be employed to operate valve 14 such as manual means that will open and close valve 14.
  • valve 32 When it is desired to use both filter 8 and liquid for filtering, valve 32 is opened and liquid from a source under pressure, not shown, enters through pipes 30 and 28 into annular pipe 25 and sprays out -of holes 26 to saturate filter 8.
  • pump 10 When it becomes necessary to clean filter 8 and tank 2, pump 10 is operated and valves 32 and 33 are opened. Liquid under pressure, from pipe 30 and detergents also under pressure, from a source, not shown, enters pipe 31 to become mixed at T-coupling 29 and then enter pipe 28 and pipe 25 and are, of course sprayed out of holes 26 to spray on lter 8, through filter 8 and into lower shell 4, shell 4 being usually emptied of Waste material first.
  • the vacuum cleaner 1 is especially applicable for use in a central vacuum cleaning system wherein tank 2 is placed permanently over a sewer or disposal.
  • tank 2 is placed permanently over a sewer or disposal.
  • hose would lead to a manifold or the like, not shown, and inlet hoses would lead to various locations (also not shown) such :as in barracks, factories, etc.
  • a vacuum cleaner comprising in combination, a tank including an upper shell and a lower shell connected to said upper shell, vthere being an offset, annular shoulder in the upper end ⁇ of said lower shell, a lter supported by said shoulder, an air-exhaust pipe leading from said upper shell, a vacuum pump in said air-exhaust pipe, an inlet hose connected to said lower shell, a flap valve normally closing said hose
  • a waste disposal pipe connected to the lower end of said lower shell, there being a chamber in said disposal pipe and having a diameter larger thereof, a spring biased valve mounted in said chamber and normally closing said waste disposal pipe when said vacuum pump is activated, a pump in said disposal pipe and disposed below said valve, said last named pump being adapted to open said springebiased valve when activated and said vacuum pump is inactive, to draw waste material from ⁇ said lower shell Cil through said disposal pipe, an annular pipe supported by the inner wall lof said upper shell and spaced above said lter in said tank, there being

Landscapes

  • Filtering Of Dispersed Particles In Gases (AREA)

Description

c. L. wlLsoN VACUUM CLEANER Filed April l5,l 1965 May 9, 1967 United States Patent O 3,318,075 VACUUM CLEANER Curtis L. Wilson, P.O. Box 1094, Sierra Vista, Ariz. 85635 Filed Apr. 15, 1965, Ser. No. 448,551 1 Claim. (Cl. 55-228) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.
The present invention relates to a Vacuum cleaner and more in particular to a vacuum cleaner which deposits collected waste directly into a sewer or other disposal means, which employs a liquid spray to clean the filter and without handling by human hands.
The vacuum cleaner of this invention is designed to be used as a central vacuum cleaning system for removal and disposal of Waste, dust, dirt, filth or debris and consists briefly, of a tank having a conventional filter therein, a vacuum pump for producing vacuum therein, an outlet connected to a sewer or other disposal means, a hose connected to the tank and to the cleaning inlet or inlets. A spraying means in the tank connected to independent supplies of liquid and cleaning mediums is used to fiush the tank and the filter. The device is operable without handling by human hands and is especially applicable for removal of radioactive Waste or toxic matter. Touching or handling the waste is entirely eliminated and the cleaner is adaptable for use in atomic installations and hospitals, as well as factories or barracks.
The tank would be connected to a domestic water supply and a tank of liquid containing soaps, detergents or other solutions necessary for fiushing, cleaning, neutraliz ing, decontaminating, etc., of the tank and filter.
It is an object of this invention to provide a vacuum cleaner employing a conventional filter, a liquid spray or a combination of both t-o achieve filtering action.
Another object is to provide a vacuum cleaner in which the filter may =be purged, cleaned, decontaminated and saturated with any desired solution without removal of the filter from the cleaner, or physically touching, handling, breathing of fumes or coming into personal contact With waste, filth in the filter or tank.
A further object is to provide a vacuum cleaner that may be connected directly to a sewer or other disposal.
A final object is to provide a vacuum cleaner that is connected to sources of desired detergents, liquids or solutions, etc.
These and other objects and advantages of the present i invention will be fully apparent from the following description when taken in connection with the annexed drawing, in which:
The single figure illustrates in elevation, with parts broken away, the vacuum cleaner of this invention.
Referring more specifically to the drawing, reference character 1 designates generally the vacuum cleaner of this invention.
The vacuum cleaner consists of a tank, indicated generally -by 2. Tank 2 may be constructed of two parts for sake of assembly and includes an upper shell 3 and a lower shell 4. Shells 3 and 4 are shown to be secured together yby screws 5.
Lower shell 4 is provided with an offset portion 6 which provides a shelf 7 for the support of a conventional type filter 8 which may be Fiberglas, etc. An annular ring 9 may be provided to prevent any upward movement of the filter.
A vacuum pump 10 is in connection with upper shell 3 by a pipe 11. An air exhaust pipe 12 is provided to direct the exhaust air to a suitable location as is expedient.
A pipe 13 which leads from lower shell 4 to a sewer or the like waste disposal, not shown.
A poppet valve 14 in a chamber 15 connected with pipe 13 which has a diameter larger than that of pipe 13, and provides a means to prevent reverse movement of waste in lower shell 4 while vacuum pump 10 is operating.
Valve 14, while shown to be of the poppet type may be any other type which is suitable, such as a fiap valve, etc., the poppet type valve being shown by way of example only. The valve 14 has a stem 16 slidable in a guide 17 which is supported by a cross rod 18 fixed in the side walls of chamber 15. The valve `14 is urged into a seated, or closed position by a spring 19 which encircles stem 16.
If desired, a second pump 20 may be connected in disposal pipe 13 to pump the Waste in lower shell 4 down into the disposal location.
A hose 21 is connected to lower shell 4 and is for the purpose of admitting waste material which is drawn in lower shell 4 by vacuum. This hose may -be coupled to lower shell 4 by suitable means. As shown, an integral collar 22 is provided in the side Wall of lower shell 4 and the hose 21 is secured therein by screws 23. A fiap valve 24 normally closes the hose 21 when there is no vacuum present in the cleaner 1.
Means for admitting cleaning liquid, under pressure, and detergents also under pressure, are provided and consists of an annular pipe 25 having holes 26 therein. Pipe 25 may `be supported in the upper shell 3, above filter 8, by any suitable means, such as hangers 27.
Annular pipe 25 is connected by a pipe 28 to a Tcoupling 29. A pair of pipes 30 and 31 are in connection with T-coupling 29 `and have valves 32 and 33 mountedv thereon.
When the cleaner 1 is used as a simple vacuum cleaner, pump 10 produces vacuum in tank 2 and flap valve 24 will open. Poppet valve `14 will rbe held closed due to the vacuum in tank 2 and the waste material to be gathered enters lower shell 4 through the hose 21. Air being exhausted is drawn through filter 8 and is exhausted through pipes 11 and 12 to Whatever location pipe 12 leads to.
When it is desired to empty the tank 2 of its waste material, pump 10 is shut down and pump 20 is operated. This causes poppet Valve 14 to be opened by vacuum and the Waste material is forced into a sewer or like disposal, not shown.
Tank 2 may also be emptied without benefit of pump 20 if desired, since, when lower shell 4 becomes overloaded with waste material, the Weight thereof will overcome the bias of spring 19 and cause valve 14 to be pushed open and the material will fall by gravity into the pipe 13. Other means may be employed to operate valve 14 such as manual means that will open and close valve 14.
When it is desired to use both filter 8 and liquid for filtering, valve 32 is opened and liquid from a source under pressure, not shown, enters through pipes 30 and 28 into annular pipe 25 and sprays out -of holes 26 to saturate filter 8.
When it becomes necessary to clean filter 8 and tank 2, pump 10 is operated and valves 32 and 33 are opened. Liquid under pressure, from pipe 30 and detergents also under pressure, from a source, not shown, enters pipe 31 to become mixed at T-coupling 29 and then enter pipe 28 and pipe 25 and are, of course sprayed out of holes 26 to spray on lter 8, through filter 8 and into lower shell 4, shell 4 being usually emptied of Waste material first.
It is apparent therefore that no handling of the filter 8, or manual scrubbing of tank 2 is necessary and the system may function as a self cleaning vacuum cleaner and also capable of operating as both dry or Wet filtering.
The vacuum cleaner 1 is especially applicable for use in a central vacuum cleaning system wherein tank 2 is placed permanently over a sewer or disposal. In this case, hose would lead to a manifold or the like, not shown, and inlet hoses would lead to various locations (also not shown) such :as in barracks, factories, etc.
It is further apparent that contaminated waste in atomic plants, biological plants, hospitals, etc., can be safely disposed of without danger to the user, since the cleaner is fully enclosed.
While only a preferred form of the invention is shown and described, other forms of the invention are contemplated and numerous changes and modifications may be made without departing from the spirit of the invention as set forth in the appended claim.
What is claimed is:
A vacuum cleaner comprising in combination, a tank including an upper shell and a lower shell connected to said upper shell, vthere being an offset, annular shoulder in the upper end `of said lower shell, a lter supported by said shoulder, an air-exhaust pipe leading from said upper shell, a vacuum pump in said air-exhaust pipe, an inlet hose connected to said lower shell, a flap valve normally closing said hose When said vacuum pump is inactive, a waste disposal pipe connected to the lower end of said lower shell, there being a chamber in said disposal pipe and having a diameter larger thereof, a spring biased valve mounted in said chamber and normally closing said waste disposal pipe when said vacuum pump is activated, a pump in said disposal pipe and disposed below said valve, said last named pump being adapted to open said springebiased valve when activated and said vacuum pump is inactive, to draw waste material from `said lower shell Cil through said disposal pipe, an annular pipe supported by the inner wall lof said upper shell and spaced above said lter in said tank, there being a series of spraying holes in said annular pipe, a first inlet pipe connected at one end to said annular pipe, ya T-coupling connected to its other end, `second and third inlet pipes connected to said T-coupling and a valve in each second and third pipes whereby a cleaning fluid and a detergent may be alternately or in combination admitted to said annular pipe and sprayed over said lter.
References Cited by the Examiner UNITED STATES PATENTS 1,867,988 7/1932 Safford et al 55-420 X 2,024,122 12/ 1935 Wemhoener 55-242 2,361,394 10/1944 Freeman et al 55--417 X 2,583,252 1/1952 Carraway 55-227 X 2,768,707 10/1956 Campbell 55-432 X 2,979,755 4/1961 McCaskill 55--420 X 3,173,164 3/1965 Congdon 55-432 X 3,214,020 10/1965 Danker 55-212 X 3,243,043 3/1966 Thompson et al. 55-432 X FOREIGN PATENTS 796,828 2/ 1936 France.
869,175 10/1941 France.
791,510 3/1958 Great Britain.
HARRY B. THORNTON, Primary Examiner.
D. TALBERT, Assistant Examiner.
US448551A 1965-04-15 1965-04-15 Vacuum cleaner Expired - Lifetime US3318075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US448551A US3318075A (en) 1965-04-15 1965-04-15 Vacuum cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US448551A US3318075A (en) 1965-04-15 1965-04-15 Vacuum cleaner

Publications (1)

Publication Number Publication Date
US3318075A true US3318075A (en) 1967-05-09

Family

ID=23780758

Family Applications (1)

Application Number Title Priority Date Filing Date
US448551A Expired - Lifetime US3318075A (en) 1965-04-15 1965-04-15 Vacuum cleaner

Country Status (1)

Country Link
US (1) US3318075A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469705A (en) * 1967-03-17 1969-09-30 Robert S Thomas Means for cleaning screens in place in a pipeline
US3792571A (en) * 1971-04-02 1974-02-19 Showa Denko Kk Method and apparatus for purifying waste gas
US3823530A (en) * 1971-12-24 1974-07-16 Nippon Kokan Kk Method and apparatus for separating and collecting fine particles in gas with stream of falling molten metal drops
US3853501A (en) * 1973-07-16 1974-12-10 Radon Dev Corp Removal of radioactive radon daughters from air
US3877905A (en) * 1972-04-06 1975-04-15 Advanced Prod Eng Corp Filtration system
US4721516A (en) * 1986-01-17 1988-01-26 Aspiramatic (Societe A Responsabilite Limtee) Central vacuum cleaning installation with water flushing
US5125125A (en) * 1989-06-13 1992-06-30 Gabriel Barsacq Central suction cleaning installation with water flushing and double rinsing
US6183526B1 (en) * 1998-02-17 2001-02-06 Toyo Roki Seizo Kabushiki Kaisha Filter apparatus for canister
WO2008042444A2 (en) * 2006-10-07 2008-04-10 Tbw Industries Vacuum line clean-out separator system
US9782049B2 (en) 2014-10-16 2017-10-10 Intelliclean Solutions, Llc Liquid filtration vacuum
US9883782B2 (en) 2014-10-16 2018-02-06 Intelliclean Solutions, Llc Liquid filtration vacuum
US10021869B1 (en) * 2015-06-05 2018-07-17 Thomas Paul Cogley Mosquito destructor system
US10091980B1 (en) * 2015-06-05 2018-10-09 Thomas Paul Cogley Bed bug detector system
US10736309B1 (en) * 2018-11-27 2020-08-11 Thomas Paul Cogley Bed bug detector system
US20240260804A1 (en) * 2021-05-24 2024-08-08 Liang Cai Change-over valve and vacuum cleaner

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1867988A (en) * 1931-07-28 1932-07-19 New York Air Brake Co Combined dust collector and shut-off valve
US2024122A (en) * 1933-04-06 1935-12-10 Universal Boiler Filter Corp Filter
FR869175A (en) * 1940-07-08 1942-01-26 air or gas purifier
US2361394A (en) * 1941-11-26 1944-10-31 Wagner Electric Corp Separator
US2583252A (en) * 1948-05-21 1952-01-22 Thomas W Carraway Air or gas cleaning apparatus
US2768707A (en) * 1954-01-04 1956-10-30 Centrifix Corp Separator for use with vacuum cleaning
GB791510A (en) * 1955-06-14 1958-03-05 Olof Henrik Hallstrom Filtering arrangement for vacuum cleaning plants
US2979755A (en) * 1956-09-07 1961-04-18 Louie M Mccaskill Central vacuum system for homes
US3173164A (en) * 1960-05-18 1965-03-16 Whirlpool Co Builtin vacuum cleaner
US3214020A (en) * 1961-03-16 1965-10-26 Trw Inc Fuel filtration system
US3243043A (en) * 1964-12-07 1966-03-29 Thompson Lee Lavere Method of controlling the discharge of solids from an orifice of a centrifugal separator

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1867988A (en) * 1931-07-28 1932-07-19 New York Air Brake Co Combined dust collector and shut-off valve
US2024122A (en) * 1933-04-06 1935-12-10 Universal Boiler Filter Corp Filter
FR869175A (en) * 1940-07-08 1942-01-26 air or gas purifier
US2361394A (en) * 1941-11-26 1944-10-31 Wagner Electric Corp Separator
US2583252A (en) * 1948-05-21 1952-01-22 Thomas W Carraway Air or gas cleaning apparatus
US2768707A (en) * 1954-01-04 1956-10-30 Centrifix Corp Separator for use with vacuum cleaning
GB791510A (en) * 1955-06-14 1958-03-05 Olof Henrik Hallstrom Filtering arrangement for vacuum cleaning plants
US2979755A (en) * 1956-09-07 1961-04-18 Louie M Mccaskill Central vacuum system for homes
US3173164A (en) * 1960-05-18 1965-03-16 Whirlpool Co Builtin vacuum cleaner
US3214020A (en) * 1961-03-16 1965-10-26 Trw Inc Fuel filtration system
US3243043A (en) * 1964-12-07 1966-03-29 Thompson Lee Lavere Method of controlling the discharge of solids from an orifice of a centrifugal separator

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469705A (en) * 1967-03-17 1969-09-30 Robert S Thomas Means for cleaning screens in place in a pipeline
US3792571A (en) * 1971-04-02 1974-02-19 Showa Denko Kk Method and apparatus for purifying waste gas
US3823530A (en) * 1971-12-24 1974-07-16 Nippon Kokan Kk Method and apparatus for separating and collecting fine particles in gas with stream of falling molten metal drops
US3877905A (en) * 1972-04-06 1975-04-15 Advanced Prod Eng Corp Filtration system
US3853501A (en) * 1973-07-16 1974-12-10 Radon Dev Corp Removal of radioactive radon daughters from air
US4721516A (en) * 1986-01-17 1988-01-26 Aspiramatic (Societe A Responsabilite Limtee) Central vacuum cleaning installation with water flushing
US5125125A (en) * 1989-06-13 1992-06-30 Gabriel Barsacq Central suction cleaning installation with water flushing and double rinsing
US6346130B2 (en) 1998-02-17 2002-02-12 Toyo Roki Seizo Kabushiki Kaisha Filter apparatus for canister
US6183526B1 (en) * 1998-02-17 2001-02-06 Toyo Roki Seizo Kabushiki Kaisha Filter apparatus for canister
WO2008042444A2 (en) * 2006-10-07 2008-04-10 Tbw Industries Vacuum line clean-out separator system
US20080092734A1 (en) * 2006-10-07 2008-04-24 Tbw Industries Inc. Vacuum line clean-out separator system
WO2008042444A3 (en) * 2006-10-07 2008-06-19 Tbw Ind Vacuum line clean-out separator system
US7909910B2 (en) 2006-10-07 2011-03-22 Tbw Industries Inc. Vacuum line clean-out separator system
US9782049B2 (en) 2014-10-16 2017-10-10 Intelliclean Solutions, Llc Liquid filtration vacuum
US9883782B2 (en) 2014-10-16 2018-02-06 Intelliclean Solutions, Llc Liquid filtration vacuum
US10021869B1 (en) * 2015-06-05 2018-07-17 Thomas Paul Cogley Mosquito destructor system
US10091980B1 (en) * 2015-06-05 2018-10-09 Thomas Paul Cogley Bed bug detector system
US10736309B1 (en) * 2018-11-27 2020-08-11 Thomas Paul Cogley Bed bug detector system
US20240260804A1 (en) * 2021-05-24 2024-08-08 Liang Cai Change-over valve and vacuum cleaner

Similar Documents

Publication Publication Date Title
US3318075A (en) Vacuum cleaner
TW438630B (en) Exhaust emission control device
US4165544A (en) Odorless toilet stool
US5217038A (en) Apparatus for emptying a hazardous waste container
US5301388A (en) Critically safe vacuum pickup for use in wet or dry cleanup of radioactive materials
EP0197036A1 (en) Means for cleaning filters in wet and dry vacuum cleaners.
DK15091D0 (en) ACCESSORIES FOR DUST CLEAN OR DUST CLEANING PIPE
US7235121B2 (en) Externally removable vacuum cleaner filter apparatus
US8652243B1 (en) Gas filtration system
JPS6068822A (en) Concentrated suction cleaner
GB791510A (en) Filtering arrangement for vacuum cleaning plants
CN101816536A (en) Self-cleaning dust-free dust-collecting barrel
US5122168A (en) C+p-500
CN112460662A (en) Self-cleaning range hood
KR101643139B1 (en) A drain pocket of the exhaust pipe for semiconductor production equipment
FR2634996A1 (en) Spray and suction device for eradicating mites (Acaridae)
CN104667681A (en) Efficient environmental-friendly oil fume purifying device
US2132983A (en) Trap
CN208442978U (en) A kind of air cleaning facility for smart home based on Internet of Things
CN207856599U (en) A kind of workshop purifying and dedusting equipment
JPS6034350Y2 (en) Water supply and drainage equipment for laboratory safety cabinets
CN221107595U (en) Public health clearance deodorizing device
JPH0237235B2 (en)
CN216572145U (en) Anti-clogging back-flushing structure of waste gas collecting pipeline
CN218810426U (en) Heating pipeline waste fitting discharging