US2832986A - Convertible air supported suction cleaner - Google Patents

Convertible air supported suction cleaner Download PDF

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Publication number
US2832986A
US2832986A US576734A US57673456A US2832986A US 2832986 A US2832986 A US 2832986A US 576734 A US576734 A US 576734A US 57673456 A US57673456 A US 57673456A US 2832986 A US2832986 A US 2832986A
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United States
Prior art keywords
cleaner
air
suction
suction cleaner
base
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Expired - Lifetime
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US576734A
Inventor
Werner G Seck
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Hoover Co
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Hoover Co
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Filing date
Publication date
Priority to BE556384D priority Critical patent/BE556384A/xx
Application filed by Hoover Co filed Critical Hoover Co
Priority to US576734A priority patent/US2832986A/en
Priority to GB10677/57A priority patent/GB805079A/en
Priority to FR71163D priority patent/FR71163E/en
Application granted granted Critical
Publication of US2832986A publication Critical patent/US2832986A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type

Definitions

  • the present invention relates to suction cleaners and more particularly to suction cleaners of the so called canister type by which cleaning is done by means of a cleaning tool attached to a motor-fan-filter unit by means of a flexible suction hose.
  • Such cleaners may be towed about by means of pulling on the suction hose.
  • the present invention relates to that type of cleaner in which the towing operation is facilitated by supporting the motor-fan-filter unit on a cushion of air as exemplified by a co-pending application by In cleaners of the air supported type, the exhaust air flows into a plenum chamber formed between the base of the cleaner and the surface upon which the cleaner rests.
  • the plenum chamber is formed by an annular supporting rim closing an annular air space into which the exhaust air discharges.
  • An air pressure is built up within the plenum chamber sufiicient to support the cleaner on a cushion of air, the rim being raisedsufiiciently to per-' mit the escape of exhaust air between its lower edge and the surface upon which the cleaner rests.
  • a number of protuberances projecting slightly below the supporting rim may be provided to prevent the cleaner from chattering and to stabilize it when it is supported on a bare
  • an auxiliary air outlet is provided which is normally closed by a removable sleeve like member. When the sleeve is removed the air flows through an annular diffusing opening between the base of the cleaner and the main body of the cleaner. 7
  • the motor windings may be connected to the usual household electrical outlet by an electric cord 18 and is adapted to be controlled by an electric switch 19.
  • the cleaner body 10 is pivoted at 20 to a base generally indicated by thereference numeral 21 and is normally held in'its downward position by a latch 22.
  • the lower casing half 12 is provided with blower fitting 23 whereby the body 10 may be pivoted upwardly and the flexible hose attached to the fitting 23 for blowing purposes.
  • the base 21 consists of an annular plate 25 having a downwardly extending annular rim 26 provided with a plurality of downwardly extending protuberances 29peripherally spaced about the rim 26 and extending downwardly from the lower face of the rim 26 a few thousandths of an inch for a purpose which will later appear.
  • the protuberances 29 may be from 0.020 to 0.025 inch in downward extent below the rim 26.
  • Fig. 1 is a side view of a cleaner according to the Fig. 2 is a segmental sectional view of the cleaner of Fig. 1 showing the path of exhaust air flow when the cleaner is not air supported.
  • the cleaner of the present invention is generally represented by the reference numeral 10 and comprises upper and lower casing halves 11 and 12 respectively hinged together at 13 and held closed by a suitable latch 14.
  • the upper casing encases a filter 15 and is formed with a suction inlet fitting 16 to which one end of the flexible hose is adapted to be attached, the other end of the hose being connected to a suitable cleaning tool.
  • the upper and lower casing halves 11 and 12 are sepaand makes sealing engagement with the blower fitting 23 when the body 10 is latched to the base 21.
  • the ring 30 is made of plastic material and is held in position by an integral rivet 31 extending through a small opening 32 in the plate 25 to one side of the opening 28.
  • the upper part of the base 21 comprising an annular plate 33 having a plurality of openings 34 about its periphery and positioned outwardly of the lower casing half 12.
  • the space between a plate 25 and the lower casing half 12 enclosed by the annulus 33 forms a diffusing chamber under certain conditions as will later appear;
  • a hose having a suitable cleaning tool attached to its free end is attached to the suction fitting 16 and the motor energized by operation of the switch 19. Dirt laden air will be drawn inwardly through the hose and fitting 16 and into the filter 15 where the dirt will be separated from the moving air stream. 0
  • the cleaned air will pass through the bulkhead into the suction side of the fan and be discharged through the motor casing into the interior of the lower casing half 12.
  • the exhaust air under pressure will pass through the blower fitting 23, through the ring 30 and through the opening 28 in plate 25 into the plenum chamber 27 where a pressure will be built up suificient to support the weight of the cleaner 10 on a cushion of air, the air escaping from beneath the lower edge of rim 26 to maintain the requisite pressure in the plenum chamber 27.
  • the protuberances 29 are not absolutely essential but prevent the cleaner from chattering when it is supported on the air cushion, more particularly the protuberances 29 actually prevent the cleaner from beginning to chatter.
  • the latch 22 is released and the cleaner body pivoted upwardly about the pivot 20 which removes the fitting 23 from contact with the ring 30 permitting the latter to be easily removed.
  • the body 10 is then returned to its normal position and used in the normal manner.
  • the removal of the ring 30 provides for the free flow of air through the diffuser and openings 34. While that air flow passage is somewhat restricted and air flow into the plenum chamber 27 is permitted the back pressure in thatchamber will not be suificient to support the cleaner 10 and it may be used in the usual manner of using canister type cleaners.
  • the body 10 may be tilted upwardly and a hose, fitting inserted in the blower fitting 23 for blowing operations.
  • the present invention provides the simple arrangement by which a canister cleaner of the air supported type may be easily converted to an ordinary canister cleaner.
  • a suction cleaner comprising,- a body'having a suction inlet and an exhaust outlet, a suction creating unit within said body for drawing air into the suction inlet and for exhausting said air through said outlet, a supporting base for said body, a plenum chamber formed in said base and exposed over a substantial area to the surface upon which said body rests, a supporting rim surrounding said area, means including a separable memhaust outlet direct to atmosphere, said secondary air passage being'normally closed by said separable member whereby, upon its removal a free path of air flow to atmosphere is provided for air exhausted by said suction creating unit.
  • a suction cleaner according to claim 1 in which said removable member is in the form of a ring lying between said. exhaust outlet and a port leading to said plenum chamber and normally occupying the space between said body and base.
  • a suction cleaner according to claim 2 in which said body is pivoted to said base and said ring is accessible for removal when said body is pivoted upwardly relative to said base.
  • a suction cleaner according to claim 3 in which said ring like member is detachably secured to said base adjacent the port leading to said plenum chamber.
  • a suction cleaner according to claim 1 in which said secondary air passage is in the form of an annular space between said body and base communicating with atmosphere and acting as an air diffuser.

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  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electric Suction Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)

Description

y 6, 1958 w. G. sEcK 2,832,986
CONVERTIBLE AIR SUPPORTED SUCTION CLEANER Filed April a, 1956 United States Pat CONVERTIBLE AIR SUPPORTED SUCTION CLEANER Werner G. Seck, Canton, Ohio, assignor to The Hoover Company, North Canton, Ohio, a corporation of Ohio Application April 6, 1956, Serial No. 576,734
5 Claims. (Cl. 15-327) The present invention relates to suction cleaners and more particularly to suction cleaners of the so called canister type by which cleaning is done by means of a cleaning tool attached to a motor-fan-filter unit by means of a flexible suction hose.
Such cleaners may be towed about by means of pulling on the suction hose. The present invention relates to that type of cleaner in which the towing operation is facilitated by supporting the motor-fan-filter unit on a cushion of air as exemplified by a co-pending application by In cleaners of the air supported type, the exhaust air flows into a plenum chamber formed between the base of the cleaner and the surface upon which the cleaner rests. The plenum chamber is formed by an annular supporting rim closing an annular air space into which the exhaust air discharges. An air pressure is built up within the plenum chamber sufiicient to support the cleaner on a cushion of air, the rim being raisedsufiiciently to per-' mit the escape of exhaust air between its lower edge and the surface upon which the cleaner rests. A number of protuberances projecting slightly below the supporting rim may be provided to prevent the cleaner from chattering and to stabilize it when it is supported on a bare According to the present invention an auxiliary air outlet is provided which is normally closed by a removable sleeve like member. When the sleeve is removed the air flows through an annular diffusing opening between the base of the cleaner and the main body of the cleaner. 7
Other objects and advantages of the present invention will become apparent as the description proceeds when ICE rated by a bulkhead (not shown) provided with an opening leading to the suction inlet of a motor-fan unit 17 suitably supported within the lower casing half 12.
The motor windings may be connected to the usual household electrical outlet by an electric cord 18 and is adapted to be controlled by an electric switch 19.
The cleaner body 10 is pivoted at 20 to a base generally indicated by thereference numeral 21 and is normally held in'its downward position by a latch 22. The lower casing half 12 is provided with blower fitting 23 whereby the body 10 may be pivoted upwardly and the flexible hose attached to the fitting 23 for blowing purposes.
The base 21 consists of an annular plate 25 having a downwardly extending annular rim 26 provided with a plurality of downwardly extending protuberances 29peripherally spaced about the rim 26 and extending downwardly from the lower face of the rim 26 a few thousandths of an inch for a purpose which will later appear. For one type of cleaner the protuberances 29 may be from 0.020 to 0.025 inch in downward extent below the rim 26. i
The space between the plate 25 and the lower edge of rim 26 forms a plenum chamber 27 into which exhaust air is discharged through an opening 28 inplate 25 immediately below theblower fitting 23. A ring like member 30 a normally seats about the opening 28 at its lower edge taken in connection with the accompanying drawings in which:
Fig. 1 is a side view of a cleaner according to the Fig. 2 is a segmental sectional view of the cleaner of Fig. 1 showing the path of exhaust air flow when the cleaner is not air supported.
The cleaner of the present invention is generally represented by the reference numeral 10 and comprises upper and lower casing halves 11 and 12 respectively hinged together at 13 and held closed by a suitable latch 14.
The upper casing encases a filter 15 and is formed with a suction inlet fitting 16 to which one end of the flexible hose is adapted to be attached, the other end of the hose being connected to a suitable cleaning tool.
The upper and lower casing halves 11 and 12 are sepaand makes sealing engagement with the blower fitting 23 when the body 10 is latched to the base 21. The ring 30 is made of plastic material and is held in position by an integral rivet 31 extending through a small opening 32 in the plate 25 to one side of the opening 28.
The upper part of the base 21 comprising an annular plate 33 having a plurality of openings 34 about its periphery and positioned outwardly of the lower casing half 12. The space between a plate 25 and the lower casing half 12 enclosed by the annulus 33 forms a diffusing chamber under certain conditions as will later appear;
Operation A hose having a suitable cleaning tool attached to its free end is attached to the suction fitting 16 and the motor energized by operation of the switch 19. Dirt laden air will be drawn inwardly through the hose and fitting 16 and into the filter 15 where the dirt will be separated from the moving air stream. 0
The cleaned air will pass through the bulkhead into the suction side of the fan and be discharged through the motor casing into the interior of the lower casing half 12. The exhaust air under pressure will pass through the blower fitting 23, through the ring 30 and through the opening 28 in plate 25 into the plenum chamber 27 where a pressure will be built up suificient to support the weight of the cleaner 10 on a cushion of air, the air escaping from beneath the lower edge of rim 26 to maintain the requisite pressure in the plenum chamber 27.
The protuberances 29 are not absolutely essential but prevent the cleaner from chattering when it is supported on the air cushion, more particularly the protuberances 29 actually prevent the cleaner from beginning to chatter.
When it is desired to usethe cleaner 10 without the use of the air lift feature, the latch 22 is released and the cleaner body pivoted upwardly about the pivot 20 which removes the fitting 23 from contact with the ring 30 permitting the latter to be easily removed. The body 10 is then returned to its normal position and used in the normal manner.
The removal of the ring 30 provides for the free flow of air through the diffuser and openings 34. While that air flow passage is somewhat restricted and air flow into the plenum chamber 27 is permitted the back pressure in thatchamber will not be suificient to support the cleaner 10 and it may be used in the usual manner of using canister type cleaners.
In either case the body 10 may be tilted upwardly and a hose, fitting inserted in the blower fitting 23 for blowing operations.
From the foregoing it can be seen that the present invention provides the simple arrangement by which a canister cleaner of the air supported type may be easily converted to an ordinary canister cleaner.
While I have shown and described but a single embodiment of my invention it is to be understood that that embodiment is to be taken asillustrative only and not in a limiting sense. I do not wish to be limited to the specific structure shown and described but wish to include all equivalent variations thereof except as limited by the scope of the claims.
I claim:
1. A suction cleaner comprising,- a body'having a suction inlet and an exhaust outlet, a suction creating unit within said body for drawing air into the suction inlet and for exhausting said air through said outlet, a supporting base for said body, a plenum chamber formed in said base and exposed over a substantial area to the surface upon which said body rests, a supporting rim surrounding said area, means including a separable memhaust outlet direct to atmosphere, said secondary air passage being'normally closed by said separable member whereby, upon its removal a free path of air flow to atmosphere is provided for air exhausted by said suction creating unit.
2. A suction cleaner according to claim 1 in which said removable member is in the form of a ring lying between said. exhaust outlet and a port leading to said plenum chamber and normally occupying the space between said body and base.
3. A suction cleaner according to claim 2 in which said body is pivoted to said base and said ring is accessible for removal when said body is pivoted upwardly relative to said base.
4. A suction cleaner according to claim 3 in which said ring like member is detachably secured to said base adjacent the port leading to said plenum chamber.
5. A suction cleaner according to claim 1 in which said secondary air passage is in the form of an annular space between said body and base communicating with atmosphere and acting as an air diffuser.
References Cited in the file of this patent UNITED STATES PATENTS 2,616,115 Dayton Nov. 4, 1952 2,751,038 Acheson June 19, 1956 FOREIGN PATENTS V 48,930 Netherlands July 15, 1940
US576734A 1956-04-06 1956-04-06 Convertible air supported suction cleaner Expired - Lifetime US2832986A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE556384D BE556384A (en) 1956-04-06
US576734A US2832986A (en) 1956-04-06 1956-04-06 Convertible air supported suction cleaner
GB10677/57A GB805079A (en) 1956-04-06 1957-04-02 Improvements relating to suction cleaners
FR71163D FR71163E (en) 1956-04-06 1957-04-03 Improvements to dust extractors

Applications Claiming Priority (1)

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US576734A US2832986A (en) 1956-04-06 1956-04-06 Convertible air supported suction cleaner

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US2832986A true US2832986A (en) 1958-05-06

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US576734A Expired - Lifetime US2832986A (en) 1956-04-06 1956-04-06 Convertible air supported suction cleaner

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BE (1) BE556384A (en)
FR (1) FR71163E (en)
GB (1) GB805079A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938590A (en) * 1957-12-09 1960-05-31 Henry W Barnett Conveying device
US2992520A (en) * 1958-06-02 1961-07-18 Kish Paul Air floated grinder
DE1202050B (en) * 1961-03-16 1965-09-30 Flymo Sa Grass digging machine
US3257681A (en) * 1964-04-13 1966-06-28 Jack V Miller Vacuum cleaners
US3295621A (en) * 1963-04-25 1967-01-03 Dentists Supply Co Supporting base for chair and the like for gliding on a film of air
US3613821A (en) * 1968-03-02 1971-10-19 Nat Res Dev Load-supporting device
US3706319A (en) * 1971-01-27 1972-12-19 John W Neese Apparatus for evacuating septic tanks or the like
US4571849A (en) * 1983-10-22 1986-02-25 Gardner Philip D Apparatus for removing liquid from the ground
US20060143936A1 (en) * 2004-09-27 2006-07-06 Roy Studebaker Shrouded floor drying fan
US20130014342A1 (en) * 2009-12-17 2013-01-17 Jeremy Greer Hovering vacuum cleaners and components thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL48930C (en) *
US2616115A (en) * 1947-09-03 1952-11-04 Gen Electric Brush belt removing means for vacuum cleaners
US2751038A (en) * 1954-05-14 1956-06-19 Hoover Co Air supported cleaner with control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL48930C (en) *
US2616115A (en) * 1947-09-03 1952-11-04 Gen Electric Brush belt removing means for vacuum cleaners
US2751038A (en) * 1954-05-14 1956-06-19 Hoover Co Air supported cleaner with control

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938590A (en) * 1957-12-09 1960-05-31 Henry W Barnett Conveying device
US2992520A (en) * 1958-06-02 1961-07-18 Kish Paul Air floated grinder
DE1202050B (en) * 1961-03-16 1965-09-30 Flymo Sa Grass digging machine
US3295621A (en) * 1963-04-25 1967-01-03 Dentists Supply Co Supporting base for chair and the like for gliding on a film of air
US3257681A (en) * 1964-04-13 1966-06-28 Jack V Miller Vacuum cleaners
US3613821A (en) * 1968-03-02 1971-10-19 Nat Res Dev Load-supporting device
US3706319A (en) * 1971-01-27 1972-12-19 John W Neese Apparatus for evacuating septic tanks or the like
US4571849A (en) * 1983-10-22 1986-02-25 Gardner Philip D Apparatus for removing liquid from the ground
US20060143936A1 (en) * 2004-09-27 2006-07-06 Roy Studebaker Shrouded floor drying fan
US7971369B2 (en) * 2004-09-27 2011-07-05 Roy Studebaker Shrouded floor drying fan
US20130014342A1 (en) * 2009-12-17 2013-01-17 Jeremy Greer Hovering vacuum cleaners and components thereof

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Publication number Publication date
BE556384A (en)
GB805079A (en) 1958-11-26
FR71163E (en) 1959-10-13

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