US2516246A - Nozzle for suction cleaner - Google Patents

Nozzle for suction cleaner Download PDF

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US2516246A
US2516246A US635049A US63504945A US2516246A US 2516246 A US2516246 A US 2516246A US 635049 A US635049 A US 635049A US 63504945 A US63504945 A US 63504945A US 2516246 A US2516246 A US 2516246A
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blade
nozzle
suction
chamber
opening
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Edward O Norris
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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
    • 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

Definitions

  • This invention relates to nozzles for suction cleaners or the like, and more particularly to a nozzle for a suction scrubber which is adapted to dry the surface after the scrubbing operation.
  • An object of the invention is to provide a nozzle of the foregoing type having a novel and improved blade construction and mounting which enables the blade to conform to the contour of the surface to be cleaned.
  • Another object is to provide a nozzle which is suited to remove substantially all of the liquid from a surface.
  • Another object is to provide a self-sealing dripproof nozzle for suction scrubbers of the above type.
  • Still another object is to provide a cleaning or scrubbing appliance of the above type having novel and improved details of construction and features of operation.
  • the suction nozzle disclosed herein for the purpose of illustrating the invention comprises a housing forming a chamber having an elongated suction opening.
  • a floating resilient blade extends centrally through the nozzle chamber and projects through the opening therein to engage the surface to be scrubbed.
  • the blade contains a number of transverse holes which convey fluid through the blade and also increase the transverse resiliency of the blade.
  • the sides of the resilient blade are provided with longitudinal shoulders shaped to seat on the housing to seal the opening and also to limit the outward movement of the blade, and resilient means such as springs engage the upper edge of the blade to hold the blade in its sealed position.
  • The; projecting portion of the blade' is narrower than the opening through which it projects, hence it will shift freely from side to side in said opening to permit fluid to pass either face of the blade as the nozzle slides back and forth over the surface which is being cleaned.
  • the blade will automatically seal the opening to prevent any liquid which may be trapped inside from dripping back out the floor.
  • the nozzle is mounted on wheels as a part of a scrubbing machine which is adapted to be moved over the floor in the manner of a vacuum cleaner.
  • These wheels have shields containing orifices which open on the peripheral rims of the wheels and communicate with the chamber insidexthe nozzle, so that, when said chamber is under suction during the drying phase of the scrubbing operation, the suction will dry the rims of the wheels and prevent unsightly streaking of the
  • Fig. l is a side elevation of a suction cleane having a nozzle embodying the present invention
  • J Fig. 2 is a broken front elevation of the nozzle
  • Fig. 3 is a broken side elevation of the floating resilient blade member
  • Fig. 4 is a transverse section taken on line 44 of Fig. 3;
  • Fig. 5 is a transverse sectional view of the nozzle, showing the same in operative'position on the floor;
  • Fig. 6 is an end view of the nozzle;
  • Fig. '7 is a partial longitudinal sectional view thereof taken on the line 'l--l of Fig. 6;
  • Fig. 8 is a transverse section, similar to Fig. 5, showing the position of the blade when the nozzl is lifted from the floor.
  • Fig. '1' shows a suction nozzle I having a flared body portion 2 embodied in a portable floor scrubbing machine of the type disclosed in application Serial No. 647, filed February 15,1946.
  • the scrubbing machine proper which forms no part of the present invention, includes a suction device 3 and a handle 4 containing a flex-'-
  • the handle 4 of the machine carries a pivoted control lever 1 actuating a Bowden wire 8 which controls the operation of the suction device'3.
  • the suction device 3 creates an air suction which draws liquid upwardly through the nozzle for drying the surface and discharges the liquid through conduit 6 to a drain.
  • the nozzle l comprises a rear wall Ill (Fig. integral with the flared body portion 2, a front plate [2 secured to the ,wall In by screws l3, and end plates M (Fig. 7)
  • the nozzle contains a chamber IT and is formed at the bottom with longitudinal lips H having an elongated opening 8 therebetween for the passage of fluid between the chamberv l1 and the surface to be cleaned.
  • a passage [9 isformed in the rear side wall in for conveying fluid to and from saidchamber H.
  • the edges of the lips H defining the opening i8 are preferably thin and sharp to prevent the accumulation of dust and dirt thereon and are shaped to form seats for the blade to be described.
  • the blade 28 has a longitudinally spaced series of circular transverse holes '2! and is provided with slits 22 extending --from said holes to the top of the blade to increase-its transverse resiliency.
  • the resilient blade 29 is formed-with longitudinal shoulders 23 on both sides thereof, which are shaped to engage the lips ii to seal the opening 18 of the nozzle and also to limit the outwardm'ovement of the floating blade.
  • Coil springs- 2 1 are mounted in the chamber I! between the top of said chamber and the top of the blade 21!, contacting the portions of thetop surface of the blade between the transverse slits 22!
  • the springs 24 are positioned inholes 25 in the'front plate l2 of the nozzle. The springs resiliently urged the blade 20 to .itslimiting position with the shoulders '23-seatedonzthe lips -H to seal the chamber H.
  • the upper 'part of the chamber I1 is of a size to receive and confine the blade, but-to permit free sliding movement thereof in response to the pressure of the springs 24 and the vpressureof the floorwhich forces the blade upwardly 'against theraction of the springs.
  • the blade 20 projects outwardly through the opening' tbsandhas a Llower resilient scraping surface 26 which is adapted to engagethe surfaee to be cleaned.
  • an insert 21 of abrasive material such as pressed mopper wool, other metal wools, or .thedike, which has desir able cleaning properties extends along the entire length of the bottom 260i the blade.
  • Other cleaning-substances such as rubber impregnated with pumice, or a soft material, such as felt, may
  • the nozzle may carry curved shields 28 having orifices which open on the peripheral rims of the wheels .l5, and having ducts which connect said-orifices to thechamber 1-1 for remov ing rfluid fromntherimsuto said chamber upon the application of suction thereto.
  • the blade 20 is retracted by contact with the floor to provide a fluid passage to the chamber I! as indicated in Fig. 4.
  • the hand lever 1 may be first actuated to supply liquid such as soapy water from the conduit 5 to the nozzle and thence through the chamber l1 and around the blade 20 to the floor, or the floor may be wet in other ways.
  • the nozzle and bladeare then pushed back and forth over the floor to scrub the same.
  • the copper wool 27 assists in this scrubbing action.
  • the hand lever 1 is actuated to start the suction device 3 and apply suction to the nozzle.
  • the blade 29 scraping along the surface causes the wate to pile up at its leading side around the opening between the blade and the lip H and the suction draws this water into the chamber H and through the opening 19 into the body 2 for discharge through the conduit 6 as more fully described in my copending application above mentioned.
  • the springs 24 When the nozzle is lifted from the floor, the springs 24 cause the blade to seat on the lips H and seal the chamber 11 so as to prevent any water remaining in the chamber I! from dripping back onto the floor.
  • nozzle construction is suited to commercial use in floor scrubbers although it may also be applicable to vacuum cleaners operating without liquid provided the dimensions are made suitable for the purpose.
  • a nozzle comprising 'a casing having bottom and top walls forming a suction chamber and having an elongated suction opening in said bottom wall and an elongated groove in said top wall extending upwardly'from said suction chamber and registering with said suction opening, a flexible blade having an upper portion mounted in said groove to slide vertically therein, said blade extending downwardly through said suction chamber with its lower end projecting downwardly through said suction opening to engage the surface to be 5 cleaned, said blade having longitudinal shoulders engageable with said bottom wall on opposite sides of said suction opening to seal said opening and to limit the outward movement of said blade, and spring means in said groove bearing against the top of said blade for resiliently urging said blade to its limiting sealed position, the projecting end of said blade being narrower than said suction opening and adapted to fiex to leave a suction passage on one side or the other of said blade in response to the passage of the nozzle back and forth over a surface, said upper portion being restrained by said groove to
  • a nozzle as set forth in claim 1 in which said blade divides said suction chamber into two parts extending respectively along opposite sides of said blade to communicate with the passages formed on both sides of said blade as it flexes,
  • said casing being provided with a suction port communicating with one of said parts, and said blade being provided with a row of transverse holes to establish communication between said parts.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Description

y 5, 1950 E. o. NORRIS 2,516,246
NOZZLE FOR SUCTION CLEANER Filed Dec. 14, 1945 2 Sheets-Sheet 1 INIEN'I'OR.
,ITTOR NE Y July 25, 1950 E. o. NoRRls NOZZLE FOR sucnon CLEANER 2 Sheets-Sheet 2 Filed Dec. 14, 1945 R m m w WM "0 n w 4 C AORNEY ABRASIVE MATE/F/AL 0R FELT 27 Patented July 25, 1950 UNITED STATES PATENT OFFICE NOZZLE FOR SUCTION CLEANER Edward 0. Norris'l' westport, Conn. Application December 14, 1945, Serial No. 635,049
2 Claims.
This invention relates to nozzles for suction cleaners or the like, and more particularly to a nozzle for a suction scrubber which is adapted to dry the surface after the scrubbing operation.
An object of the invention is to provide a nozzle of the foregoing type having a novel and improved blade construction and mounting which enables the blade to conform to the contour of the surface to be cleaned.
Another object is to provide a nozzle which is suited to remove substantially all of the liquid from a surface.
Another object is to provide a self-sealing dripproof nozzle for suction scrubbers of the above type.
Still another object is to provide a cleaning or scrubbing appliance of the above type having novel and improved details of construction and features of operation.
,Various other objects and advantages will be apparent as the nature of the invention is more fully disclosed. a
The suction nozzle disclosed herein for the purpose of illustrating the invention comprises a housing forming a chamber having an elongated suction opening. A floating resilient blade extends centrally through the nozzle chamber and projects through the opening therein to engage the surface to be scrubbed. The blade contains a number of transverse holes which convey fluid through the blade and also increase the transverse resiliency of the blade.
The sides of the resilient blade are provided with longitudinal shoulders shaped to seat on the housing to seal the opening and also to limit the outward movement of the blade, and resilient means such as springs engage the upper edge of the blade to hold the blade in its sealed position. The; projecting portion of the blade'is narrower than the opening through which it projects, hence it will shift freely from side to side in said opening to permit fluid to pass either face of the blade as the nozzle slides back and forth over the surface which is being cleaned. When the nozzle is raised off the floor, the blade will automatically seal the opening to prevent any liquid which may be trapped inside from dripping back out the floor.
In the embodiment illustrated herein, the nozzle is mounted on wheels as a part of a scrubbing machine which is adapted to be moved over the floor in the manner of a vacuum cleaner. These wheels have shields containing orifices which open on the peripheral rims of the wheels and communicate with the chamber insidexthe nozzle, so that, when said chamber is under suction during the drying phase of the scrubbing operation, the suction will dry the rims of the wheels and prevent unsightly streaking of the Although the novel features which are characteristic of this invention are set forth more in detail in the claims appended hereto, the nature and scope of the invention may be better understood by referring to the following description, taken in connection with the accompanying drawings forming a part thereof, in which a specific embodiment has beenset forth for purposes of illustration.
In the drawings:
Fig. l is a side elevation of a suction cleane having a nozzle embodying the present invention; J Fig. 2 is a broken front elevation of the nozzle;
Fig. 3 is a broken side elevation of the floating resilient blade member;
Fig. 4 is a transverse section taken on line 44 of Fig. 3;
Fig. 5 is a transverse sectional view of the nozzle, showing the same in operative'position on the floor;
Fig. 6 is an end view of the nozzle; Fig. '7 is a partial longitudinal sectional view thereof taken on the line 'l--l of Fig. 6; and
Fig. 8 is a transverse section, similar to Fig. 5, showing the position of the blade when the nozzl is lifted from the floor. I
In the following description certain specific terms are used for convenience in referring to the various details of the invention. These' terms,
however, are to be interpreted as broadly as the state of the art will permit.
In thedrawi'ngs, Fig. '1' shows a suction nozzle I having a flared body portion 2 embodied in a portable floor scrubbing machine of the type disclosed in application Serial No. 647, filed February 15,1946. The scrubbing machine proper, which forms no part of the present invention, includes a suction device 3 and a handle 4 containing a flex-'- The handle 4 of the machine carries a pivoted control lever 1 actuating a Bowden wire 8 which controls the operation of the suction device'3.
For an understanding of the present invention,"
it is sufiicient to say that in one position of the lever 'l' cleaning liquid from conduit 5 is delivered to the flared body'p'ortion' Zof the nozzle',-'while? in another position of said lever, the suction device 3 creates an air suction which draws liquid upwardly through the nozzle for drying the surface and discharges the liquid through conduit 6 to a drain.
In the embodiment illustrated, the nozzle l comprises a rear wall Ill (Fig. integral with the flared body portion 2, a front plate [2 secured to the ,wall In by screws l3, and end plates M (Fig. 7) The end plates Mcarry stub shafts l5 supporting wheels 16 by means of which the device may be wheeled across the floor or other surface to be cleaned and maintained in proper spaced relation therewith.
The nozzle contains a chamber IT and is formed at the bottom with longitudinal lips H having an elongated opening 8 therebetween for the passage of fluid between the chamberv l1 and the surface to be cleaned. A passage [9 isformed in the rear side wall in for conveying fluid to and from saidchamber H. The edges of the lips H defining the opening i8 are preferably thin and sharp to prevent the accumulation of dust and dirt thereon and are shaped to form seats for the blade to be described.
"The chamber -I'l' 'contains a floating rectangular blade'28 of resilient material such as'rubber, which 1 extends centrally through said chamber. The blade 28 has a longitudinally spaced series of circular transverse holes '2! and is provided with slits 22 extending --from said holes to the top of the blade to increase-its transverse resiliency. I
The resilient blade 29 is formed-with longitudinal shoulders 23 on both sides thereof, which are shaped to engage the lips ii to seal the opening 18 of the nozzle and also to limit the outwardm'ovement of the floating blade. Coil springs- 2 1 are mounted in the chamber I! between the top of said chamber and the top of the blade 21!, contacting the portions of thetop surface of the blade between the transverse slits 22! In the embodiment illustrated the springs 24: are positioned inholes 25 in the'front plate l2 of the nozzle. The springs resiliently urged the blade 20 to .itslimiting position with the shoulders '23-seatedonzthe lips -H to seal the chamber H. The upper 'part of the chamber I1 is of a size to receive and confine the blade, but-to permit free sliding movement thereof in response to the pressure of the springs 24 and the vpressureof the floorwhich forces the blade upwardly 'against theraction of the springs.
The blade 20 projects outwardly through the opening' tbsandhas a Llower resilient scraping surface 26 which is adapted to engagethe surfaee to be cleaned. Theblade .20 1 is slightly narrower than the opening 18 and-thus provides a space for the passageoft -fluid on one side .or the other .of lthe blade. as 1 the blade slides backand forth over the surface whichis'lbeing =cleaned. linithe embodiment illustrated, an insert 21 of abrasive material such as pressed mopper wool, other metal wools, or .thedike, which has desir able cleaning properties extends along the entire length of the bottom 260i the blade. Other cleaning-substances, such as rubber impregnated with pumice, or a soft material, such as felt, may
belused.
The nozzle may carry curved shields 28 having orifices which open on the peripheral rims of the wheels .l5, and having ducts which connect said-orifices to thechamber 1-1 for remov ing rfluid fromntherimsuto said chamber upon the application of suction thereto.
In the operation of this device the blade 20 is retracted by contact with the floor to provide a fluid passage to the chamber I! as indicated in Fig. 4. The hand lever 1 may be first actuated to supply liquid such as soapy water from the conduit 5 to the nozzle and thence through the chamber l1 and around the blade 20 to the floor, or the floor may be wet in other ways. The nozzle and bladeare then pushed back and forth over the floor to scrub the same. The copper wool 27 assists in this scrubbing action.
At the end of the scrubbing operation, the hand lever 1 is actuated to start the suction device 3 and apply suction to the nozzle. The blade 29 scraping along the surface causes the wate to pile up at its leading side around the opening between the blade and the lip H and the suction draws this water into the chamber H and through the opening 19 into the body 2 for discharge through the conduit 6 as more fully described in my copending application above mentioned.
When the nozzle is being moved to the left as viewed in'Fig. 4, the blade is flexed to the right and the suction opening is on the side of the blade nearest the opening 19. Hence the liquid passes directly into the chamber i1 and through the opening 19. Whenthe nozzle is moved to the right, the blade 20 is flexed to the left leaving the suction opening on the outside of the blade. The liquid then flows into the right side of the chamber ll, thence through the holes 21 in the blade to the opening 19.
-It will be evident that when moved in either direction, the blade causes the liquid to pile up at the suctionopening and to be removed by the suction of the device from the floor.
The holes 21 and slots ZZcause the blade to have sufficient flexibility to conform to -an uneven floor surface so as to facilitate the scrubbing operation even when the surface is other than plane.
Anywater which is carried around on the rims of the wheels I6 is removed by the ducts 30 so that the wheels remain substantially dry.
When the nozzle is lifted from the floor, the springs 24 cause the blade to seat on the lips H and seal the chamber 11 so as to prevent any water remaining in the chamber I! from dripping back onto the floor.
It will be apparent from the above that the nozzle construction is suited to commercial use in floor scrubbers although it may also be applicable to vacuum cleaners operating without liquid provided the dimensions are made suitable for the purpose.
Although a specific embodiment has been shown and described for purposes of illustration, it will be evident to thoseskilled in the art that the invention is capable of various modifications and adaptations within the scope of the appended claims. I V
Whatis claimed is:
1. In a suction cleaner or the like, a nozzle comprising 'a casing having bottom and top walls forming a suction chamber and having an elongated suction opening in said bottom wall and an elongated groove in said top wall extending upwardly'from said suction chamber and registering with said suction opening, a flexible blade having an upper portion mounted in said groove to slide vertically therein, said blade extending downwardly through said suction chamber with its lower end projecting downwardly through said suction opening to engage the surface to be 5 cleaned, said blade having longitudinal shoulders engageable with said bottom wall on opposite sides of said suction opening to seal said opening and to limit the outward movement of said blade, and spring means in said groove bearing against the top of said blade for resiliently urging said blade to its limiting sealed position, the projecting end of said blade being narrower than said suction opening and adapted to fiex to leave a suction passage on one side or the other of said blade in response to the passage of the nozzle back and forth over a surface, said upper portion being restrained by said groove to cause the blade to return to central position in said suction opening due to its resilience.
2. A nozzle as set forth in claim 1 in which said blade divides said suction chamber into two parts extending respectively along opposite sides of said blade to communicate with the passages formed on both sides of said blade as it flexes,
said casing being provided with a suction port communicating with one of said parts, and said blade being provided with a row of transverse holes to establish communication between said parts.
EDWARD (J. NORRIS.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 403,566 Underwood May 21, 1889 493,084 Dillon Nov. 2, 1897 953,267 Hefiner Mar. 29, 1910 1,013,606 MacLean Jan. 2, 1912 1,145,555 Clements July 6, 1915 1,238,903 Fisher Sept. 4, 1917 1,874,758 Ketchledge Aug. 30, 1932 1,888,570 Rice Nov. 22, 1932 2,064,903 Ghignatti Dec. 22, 1936 2,146,763 Replogle Feb. 14, 1939 2,218,595 Yutzler Oct. 22, 1940 FOREIGN PATENTS Number Country Date 433,467 Great Britain 1935
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607068A (en) * 1946-04-24 1952-08-19 Frederick K Minerley Suction operated floor cleaning device employing liquid
US2693000A (en) * 1951-07-21 1954-11-02 Air Way Electric Appl Corp Suction operated floor tool
US2763886A (en) * 1950-09-26 1956-09-25 Jr Charles Kepler Brown Vacuum mop and strainer
US3209385A (en) * 1963-04-08 1965-10-05 American Lincoln Corp Vacuum cleaner attachment
US5499424A (en) * 1994-10-07 1996-03-19 Senson Investments Limited Cleaning device for hard and flat surfaces
US5819366A (en) * 1995-12-22 1998-10-13 Aktiebolaget Electrolux Wet cleaning suction nozzle
US6185781B1 (en) 1999-06-24 2001-02-13 The Hoover Company Hand scrub tool with interchangeable scrub drives
US6591448B1 (en) * 2000-11-20 2003-07-15 Alto Us Inc. Carpet extraction machine recovery tool

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US403566A (en) * 1889-05-21 Reservoir-brush
US493084A (en) * 1893-03-07 Breech-loading shotgun
US953267A (en) * 1909-04-24 1910-03-29 Herman C Heffner Comb.
US1013606A (en) * 1910-08-04 1912-01-02 John Maclean Vacuum-creating mechanism for dust-collectors.
US1145555A (en) * 1912-10-30 1915-07-06 Clements Mfg Co Vacuum-cleaner.
US1238903A (en) * 1915-07-31 1917-09-04 Hurley Machine Company Vacuum-cleaner nozzle.
US1874758A (en) * 1931-03-03 1932-08-30 William H Ketchledge Windshield wiper
US1888570A (en) * 1932-05-27 1932-11-22 Lloyd S Rice Fountain comb
GB433467A (en) * 1934-02-15 1935-08-15 Lucas Ltd Joseph Improvements relating to wind screen wipers for motor vehicles
US2064903A (en) * 1935-12-20 1936-12-22 Gabriel P Ghignatti Vacuum cleaner attachment
US2146763A (en) * 1935-12-27 1939-02-14 Ohio Citizens Trust Company Broad sweep electric cleaner
US2218595A (en) * 1939-03-01 1940-10-22 Kent Company Inc Water pickup tool

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US403566A (en) * 1889-05-21 Reservoir-brush
US493084A (en) * 1893-03-07 Breech-loading shotgun
US953267A (en) * 1909-04-24 1910-03-29 Herman C Heffner Comb.
US1013606A (en) * 1910-08-04 1912-01-02 John Maclean Vacuum-creating mechanism for dust-collectors.
US1145555A (en) * 1912-10-30 1915-07-06 Clements Mfg Co Vacuum-cleaner.
US1238903A (en) * 1915-07-31 1917-09-04 Hurley Machine Company Vacuum-cleaner nozzle.
US1874758A (en) * 1931-03-03 1932-08-30 William H Ketchledge Windshield wiper
US1888570A (en) * 1932-05-27 1932-11-22 Lloyd S Rice Fountain comb
GB433467A (en) * 1934-02-15 1935-08-15 Lucas Ltd Joseph Improvements relating to wind screen wipers for motor vehicles
US2064903A (en) * 1935-12-20 1936-12-22 Gabriel P Ghignatti Vacuum cleaner attachment
US2146763A (en) * 1935-12-27 1939-02-14 Ohio Citizens Trust Company Broad sweep electric cleaner
US2218595A (en) * 1939-03-01 1940-10-22 Kent Company Inc Water pickup tool

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607068A (en) * 1946-04-24 1952-08-19 Frederick K Minerley Suction operated floor cleaning device employing liquid
US2763886A (en) * 1950-09-26 1956-09-25 Jr Charles Kepler Brown Vacuum mop and strainer
US2693000A (en) * 1951-07-21 1954-11-02 Air Way Electric Appl Corp Suction operated floor tool
US3209385A (en) * 1963-04-08 1965-10-05 American Lincoln Corp Vacuum cleaner attachment
US5499424A (en) * 1994-10-07 1996-03-19 Senson Investments Limited Cleaning device for hard and flat surfaces
US5819366A (en) * 1995-12-22 1998-10-13 Aktiebolaget Electrolux Wet cleaning suction nozzle
US6185781B1 (en) 1999-06-24 2001-02-13 The Hoover Company Hand scrub tool with interchangeable scrub drives
US6591448B1 (en) * 2000-11-20 2003-07-15 Alto Us Inc. Carpet extraction machine recovery tool

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