US2978733A - Vacuum cleaner suction regulator - Google Patents

Vacuum cleaner suction regulator Download PDF

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Publication number
US2978733A
US2978733A US708934A US70893458A US2978733A US 2978733 A US2978733 A US 2978733A US 708934 A US708934 A US 708934A US 70893458 A US70893458 A US 70893458A US 2978733 A US2978733 A US 2978733A
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US
United States
Prior art keywords
suction
nozzle
wand
tubular member
tubes
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
US708934A
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English (en)
Inventor
Wahlborg Karl John
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.)
Electrolux AB
Original Assignee
Electrolux AB
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 Electrolux AB filed Critical Electrolux AB
Application granted granted Critical
Publication of US2978733A publication Critical patent/US2978733A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes

Definitions

  • My invention relates to a suction regulator for varying the suction elfect transmitted to a cleaning appliance in a suction line of a vacuum cleaner.
  • Another object of the invention is to provide an improved suction regulator which automatically regulates the suction effect transmitted to a cleaning appliance responsive to a condition incident to a cleaning operation effected by the cleaning tool.
  • a further object of the invention is to provide an improved suction regulator which automatically regulates the suction effect transmitted to a cleaning appliance responsive to the forces produced and developed with movement imparted to the cleaning appliance by an operator.
  • I accomplish this by providing in a suction line of a vacuum cleaner a pair of telescopically fitted hollow members in which one member is provided with a slot which is covered or uncovered by the other member to vary the size of a leakage port and determine the suction effect reaching the cleaning appliance.
  • the hollow members are biased to move apart with the aid of a resilient element to increase the size of the leakage port, and arranged to move toward o e another against the compression of the resilient element to reduce the size of the leakage port.
  • Fig. 1 is a perspective view of a suction cleaner having a cleaning appliance connected to a suction line provided with a suction regulator embodying my invention
  • Fig. 2 isan enlarged fragmentary perspective view, partly broken away and in section, of the suction line shown in Fig. 1 to illustrate the suction control more clearly;
  • Fig. 3 is an exploded perspective view of the suction regulator shown in Fig. 2 to illustrate details.
  • a horizontal tank-type suction cleaner which includes a casing having an end cover 10a.
  • the end cover 10a is provided with an inlet 10b to which a suction hose 11 is adapted to be removably secured in any suitable manner (not shown).
  • Suitable cleaning appliances such as a nozzle 14 havinga suction inlet 14a,
  • 2,978,733 Patented Apr. 11, 1961 for example may be connected to, a wand which in turn is connected to the outer free end of the hose 11 and through which air is drawn into the casing 10 by a suitable motor-fan unit (not shown) disposed therein. Dust and dirt entrained in the air during a cleaning operation are separated from the air when the latter passes through a dust collecting member (not shown) disposed in the casing, and air from which dust and dirt have been removed is discharged from the casing 10 at the end thereof opposite the end cover 10a.
  • the wand which is normally at an acute angle to the vertical when employed to manipulate the nozzle 14 over a horizontal surface to be cleaned, comprises outer and inner tubular members 12 and 13, the outer tubular member 12 having an enlarged end section or socket 16 within which the inner tubular member 13 telescopically fits.
  • the socket 16 is formed with an opening 17 whose eifective size is changed responsive to axial movement of the outer and inner tubular members 12 and 13 with respect to one another, thereby regulating the suction eflt'ect transmitted through the suction line from the casing 10 to the cleaning appliance 14,
  • the telescopically fitting end sections of the outer and inner tubular members 12 and 13 form part of a suction regulator 15 which also includes a hollow sleeve-like element 18 in the form of a split ring which is slit at 19 and externally threaded and provided with spaced apart lugs or bosses 20 at its inner surface.
  • the element 18, which is resilient in character, is mounted in position on the inner tube 13 by expanding the element sufficiently to enable it to be moved over such tube to a region at the immediate vicinity of slots or openings 21. In its mounted position on the inner tubular member 13, the openings 21 receive the lugs 20 of the element 18 and the latter assumes its undistorted shape seen in Fig. 3, the element 18 in such mounted position being in the position illustrated in Fig. 2.
  • the element 18 forms an externally threaded portion of the inner tube 13, and, due to the inherent resilient character of the element, the lugs or bosses 20 are effectively held in the slots 21 so that the element 18 forms a unitary part of the inner tube 13 and is always movable therewith.
  • the externally threaded element 18 is adapted to receive an internally threaded hollow sleeve 22 provided with an inwardly extending flange 23 which defines an opening 23a within which the socket 16 of the tubular member 12 is axially movable; Within the space 26a of annular form, between the inner tubular member 13 and hollow sleeve 22, is disposed a helical spring 26 having one end thereof bearing against the element 18 and the other end thereof bearing against anannular washer 24.
  • the outer tubular member 12 is provided with an outwardly extending flange 25 which, in the position illustrated in Fig. 2, is disposed between the annular washer 24 and flange 23.
  • the socket 16 of the outer tube 12 is formed with an axially extending elongated slit 27 through which extends a set screw 28 that threadedly engages a hollow bushing 30 fixed to the inner tubular member 13 at an opening 30a therein.
  • the helical spring 26 which'is'under compression and is disposed between the element 18 and the outwardly extending shoulder 25 of the outer tubular member 12, acts to move the members 12 and 13 apart as far as possible until theshoulder 25 engages the inwardly extending flange 23 of the hollow sleeve 22. Since the hollow sleeve 22 is in threaded engagement with the element 18, the hollow sleeve 22 and element18 form unitary parts of the inner tubular member 13.
  • the extreme right-hand end 13a of the inner tubular member 13 can be moved nearer or farther from the flange 23 to determine the extent to which the slot 17 is uncovered by the inner tubular member 13 when the tubular members 12 and 13 are separated as far as possible, as seen in Fig. 2.
  • the tubular members 12 and 13 can be moved toward one another against the compression of the spring 26 until the extreme end 13a of the inner tubular member 13 engages the shoulder 31 of the outer tubular member 12. Under these conditions, the members 12 and 13 are as close together as possible and the slot 17 in the outer tubular member 12 is completely closed by the end of the inner tubular member 13.
  • the suction regulator 15 When the wand formed by the telescopically fitting tubes 12 and 13 is being'moved backward and forward to move the nozzle 14 or other cleaning appliance back and forth over a horizontal surface to be cleaned, the suction regulator 15 just described functions automatically to vary the extent to which the slot 17 is covered by the inner tube 13 and thereby regulate the suction effect transmitted through the suction line from the cleaner casing 10 to the nozzle 14 whose suction inlet 14a remains the same in size during the forward and backward movements of the nozzle.
  • the suction regulator 15 functions automatically responsive to a condition incident to the cleaning operation being performed to regulate the manner in which suction eflect is transmitted through the suction line from the cleaner casing 10 to the nozzle 14.
  • the slot 17 is closed by the upper end of the inner tube 13 in the manner described above.
  • the end 13a of the tube may be adjusted with respect to the slot 17 to determine the maximum size opening produced in the tube 13 when the tubes 12 and 13 are moved apart as far as possible and the slot 17 is uncovered.
  • the set screw 28 may be employed to lock the outer and inner tubes 12 and 13 so that the slot 17 will remain completely closed and render the suction regulator 15 ineffective.
  • the set screw 28 may be employed to lock the tubes 12 and 13 in such a manner that the slot 17 will be in a partially open position and remain in such fixed open position during both forward and backward strokes of the wand and nozzle 14 attached thereto.
  • the element 18 and hollow sleeve 22 desirably may be formed of a suitable plastic like nylon, for example.
  • a plastic of a type like nylon has a relatively small coefiicient of friction and possesses an inherent lubricating quality which makes it possible to shift the hollow sleeve 22 axially of the threaded element 18 without any difficulty.
  • a vacuum cleaner having a suction line including a nozzle having a suction inlet and an elongated hollow wand, means connecting thenozzle'and the wand, said connecting means being'so constructed and arranged that when the nozzle is in its normal operating position on a horizontal surface to be cleaned with its suction inlet in physical contact therewith, the wand is at an acute angle to the vertical, means comprising the wand for manually moving the nozzle forward and rearward on the surface with its suction inlet in physical contact with the surface during such movement, the elfective size of the suction inlet of the nozzle being the same during the forward and rearward movements thereof, the wall of the wand having an opening, structure embodied in the wand for decreasing the size of the opening during forward movements of the nozzle responsive to force applied downwardly on the inclined wand along its axis when manually moving the nozzle forward with its suction inlet in physical contact with the surface, and said structure including means for increasing the size of the opening in the wand during rearward movement
  • the elongated wand comprises a pair of telescopically fitting tubes formed to provide the opening in the wand which varies in size with relative axial movement of the tubes, the
  • means for increasing the size of the opening including resilient means for biasing the tubes apart, and means for limiting the extent the tubes can be moved apart.
  • Apparatus as set forth in claim 2 including means for adjusting the compression of the resilient means.
  • the elongated wand comprises a pair of telescopically fitting tubes, one of the tubes having the opening and the other tube being movable past the opening, the means for increasing the size of the opening including resilient means for biasing the tubes apart, and means for limiting the extent the tubes can be moved apart.
  • Apparatus as set forth in claim 4 including means for locking the tubes together in any one of several positions between closed and fully open positions of the opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)
US708934A 1957-01-18 1958-01-14 Vacuum cleaner suction regulator Expired - Lifetime US2978733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE853526X 1957-01-18

Publications (1)

Publication Number Publication Date
US2978733A true US2978733A (en) 1961-04-11

Family

ID=20362738

Family Applications (1)

Application Number Title Priority Date Filing Date
US708934A Expired - Lifetime US2978733A (en) 1957-01-18 1958-01-14 Vacuum cleaner suction regulator

Country Status (5)

Country Link
US (1) US2978733A (de)
DE (1) DE1117273B (de)
FR (1) FR1189789A (de)
GB (1) GB853526A (de)
NL (1) NL101886C (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3080599A (en) * 1958-02-22 1963-03-12 Electrolux Ab Suction nozzle
US4016398A (en) * 1974-11-02 1977-04-05 Caterpillar Tractor Co. Fume extraction control for welding gun
US4761848A (en) * 1986-10-03 1988-08-09 Hofmann Helmut J Suction-operated automatic swimming pool cleaner
US4884314A (en) * 1987-11-12 1989-12-05 Black & Decker Inc. Portable blower
US4961245A (en) * 1990-02-05 1990-10-09 Ryobi Motor Products Corp. Suction controlling arrangement in a canister vacuum cleaner
US5704090A (en) * 1995-09-08 1998-01-06 Shop Vac Corporation Bleed for a vacuum cleaner
WO2003055371A1 (en) * 2001-12-21 2003-07-10 Dyson Limited Cleaner head for a vacuum cleaner
US20060116612A1 (en) * 2004-11-26 2006-06-01 Joanne Drysdale Sexual therapy device
USD668410S1 (en) 2011-11-11 2012-10-02 Telebrands Corp. Vacuum cleaner attachment adapter
CN106659339A (zh) * 2014-06-06 2017-05-10 尚科宁家运营有限公司 表面清洁装置
US9702101B1 (en) * 2011-07-20 2017-07-11 David Ficks Vacuum hose handling and safety vacuum release system
WO2020074088A1 (en) 2018-10-12 2020-04-16 Aktiebolaget Electrolux Vacuum cleaner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3772310A1 (de) * 2019-08-05 2021-02-10 Hilti Aktiengesellschaft Vorrichtung zur kompensation von druckschwankungen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT42445B (de) * 1909-06-04 1910-05-25 Richard Herz Mundstück für Apparate zum Absaugen von Staub und Asche.
DE467730C (de) * 1926-09-29 1928-10-31 Oskar Lehmann G Saugmundstueck ohne Sieb und mittels Handhabe verschiebbarer Prallplatte zum Absaugendes Staubs von den Lettern eines Setzkastens
US1860854A (en) * 1926-09-08 1932-05-31 Electrolux Corp Suction cleaner nozzle
US2157077A (en) * 1938-10-06 1939-05-02 Filtex Corp Vacuum sweeper nozzle and the like
US2176139A (en) * 1938-01-11 1939-10-17 Electrolux Corp Vacuum cleaner
US2275357A (en) * 1939-02-17 1942-03-03 Walter S Gaines Vacuum cleaner nozzle
US2717409A (en) * 1950-09-15 1955-09-13 Herbert T Draudt Vacuum cleaner nozzle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR392798A (fr) * 1907-07-31 1908-12-04 Siegmund Feitler Dispositif pour le réglage de la force d'aspiration des aspirateurs de poussière
AT133778B (de) * 1932-04-30 1933-06-10 Franz Rusznak Handrohr für Staubsauger.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT42445B (de) * 1909-06-04 1910-05-25 Richard Herz Mundstück für Apparate zum Absaugen von Staub und Asche.
US1860854A (en) * 1926-09-08 1932-05-31 Electrolux Corp Suction cleaner nozzle
DE467730C (de) * 1926-09-29 1928-10-31 Oskar Lehmann G Saugmundstueck ohne Sieb und mittels Handhabe verschiebbarer Prallplatte zum Absaugendes Staubs von den Lettern eines Setzkastens
US2176139A (en) * 1938-01-11 1939-10-17 Electrolux Corp Vacuum cleaner
US2157077A (en) * 1938-10-06 1939-05-02 Filtex Corp Vacuum sweeper nozzle and the like
US2275357A (en) * 1939-02-17 1942-03-03 Walter S Gaines Vacuum cleaner nozzle
US2717409A (en) * 1950-09-15 1955-09-13 Herbert T Draudt Vacuum cleaner nozzle

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3080599A (en) * 1958-02-22 1963-03-12 Electrolux Ab Suction nozzle
US4016398A (en) * 1974-11-02 1977-04-05 Caterpillar Tractor Co. Fume extraction control for welding gun
US4761848A (en) * 1986-10-03 1988-08-09 Hofmann Helmut J Suction-operated automatic swimming pool cleaner
US4884314A (en) * 1987-11-12 1989-12-05 Black & Decker Inc. Portable blower
US4961245A (en) * 1990-02-05 1990-10-09 Ryobi Motor Products Corp. Suction controlling arrangement in a canister vacuum cleaner
FR2657768A1 (fr) * 1990-02-05 1991-08-09 Ryobi Motor Products Corp Aspirateur comportant des moyens pour commander selectivement l'aspiration au niveau de la buse.
AU618685B2 (en) * 1990-02-05 1992-01-02 Ryobi Motor Products Corporation Suction controlling arrangement in a canister vacuum cleaner
US5704090A (en) * 1995-09-08 1998-01-06 Shop Vac Corporation Bleed for a vacuum cleaner
WO2003055371A1 (en) * 2001-12-21 2003-07-10 Dyson Limited Cleaner head for a vacuum cleaner
CN1302742C (zh) * 2001-12-21 2007-03-07 戴森技术有限公司 吸尘器的吸头
US20070101537A1 (en) * 2001-12-21 2007-05-10 Dyson Limited Cleaner head for a vacuum cleaner
US7437799B2 (en) 2001-12-21 2008-10-21 Dyson Technology Limited Cleaner head for a vacuum cleaner
US20060116612A1 (en) * 2004-11-26 2006-06-01 Joanne Drysdale Sexual therapy device
US7588533B2 (en) 2004-11-26 2009-09-15 Joanne Drysdale Sexual therapy device
US9702101B1 (en) * 2011-07-20 2017-07-11 David Ficks Vacuum hose handling and safety vacuum release system
USD668410S1 (en) 2011-11-11 2012-10-02 Telebrands Corp. Vacuum cleaner attachment adapter
CN106659339A (zh) * 2014-06-06 2017-05-10 尚科宁家运营有限公司 表面清洁装置
WO2020074088A1 (en) 2018-10-12 2020-04-16 Aktiebolaget Electrolux Vacuum cleaner

Also Published As

Publication number Publication date
NL101886C (de)
GB853526A (en) 1960-11-09
FR1189789A (fr) 1959-10-06
DE1117273B (de) 1961-11-16

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