US3334370A - Lightweight portable vacuum cleaner - Google Patents

Lightweight portable vacuum cleaner Download PDF

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Publication number
US3334370A
US3334370A US411760A US41176064A US3334370A US 3334370 A US3334370 A US 3334370A US 411760 A US411760 A US 411760A US 41176064 A US41176064 A US 41176064A US 3334370 A US3334370 A US 3334370A
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US
United States
Prior art keywords
wall
motor
casing
cleaner
casing halves
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
US411760A
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English (en)
Inventor
Wilton E Boyd
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US411760A priority Critical patent/US3334370A/en
Priority to GB43147/65A priority patent/GB1114812A/en
Priority to FR38408A priority patent/FR1455529A/fr
Priority to DEG33405U priority patent/DE1930895U/de
Application granted granted Critical
Publication of US3334370A publication Critical patent/US3334370A/en
Anticipated expiration legal-status Critical
Assigned to BLACK & DECKER, INC., A CORP. OF DE reassignment BLACK & DECKER, INC., A CORP. OF DE ASSIGNS AS OF APRIL 27, 1984 THE ENTIRE INTEREST Assignors: GENERAL ELECTRIC COMPANY A NY CORP.
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
    • 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
    • A47L5/24—Hand-supported suction cleaners

Definitions

  • One of the lightweight cleaners introduced on the market comprises a one-piece cylindrical housing for the motor and a long tapered snout attached to the housing, the snout having the suction inlet for the cleaner at its tip and a filter bag within the body of the snout.
  • a cleaner of this type has certain disadvantages: (1) the working element of the cleaner forms a part of the cleaner housing and hence is bulky and noninterchangeable; (2) the mouth of the filter bag surrounds the suction inlet in the barely accessible forward end of the snout interior and, thus, is difiicult to remove and replace; (3) the onepiece cylindrical housing for the motor may necessitate involved and expensive procedures for assembling the internal components of the cleaner within the housing.
  • Another cleaner has an external filter bag sealed around the blower outlet of the cleaner.
  • a secondary outer bag is required to minimize the unattractive appearance presented by the filter bag.
  • This secondary outer bag increases the cost of the filter components of the cleaner and is also an added inconvenience to the user when it is desired to replace or empty the filter bag. Perhaps even more important, this arrangement filters the air only after it has been drawn through the motor for cooling purposes. Thus, dirt is deposited around the motor brushes and in other undesirable locations within the motor, this deposition having an eventual deleterious effect on motor operation.
  • a third type of lightweight portable vacuum cleaner which has appeared on the market comprises a cast metal motor housing and a one-piece cast fan housing and nozzle.
  • the fan in this type of cleaner is of the centrifugal type, drawing air into the axial inlet in the rearward direction through the cleaner suction inlet and in the for-' ward direction through the motor housing to provide a flow of cooling air over the motor. It is manifest that with this type of cleaner high suction losses will be incurred at the suction inlet due to the fact that a part of the fans output is employed solely to cool the motor. Also, machines of this type utilizing cast metal housing parts are apt to be excessively heavy.
  • At least one prior art patent in this field shows a portable vacuum cleaner having an airflow which is forced to travel twice the full axial length of the cleaner, once in traversing the filter bag, and a second time in passing through the fan-filter-motor unit. Such a lengthened airflow will generate excessively high friction losses within the cleaner, with resultant diminished suction available at suction inlet of the cleaner.
  • I provide a lightweight portable vacuum cleaner having a slender, compact, box-like construction.
  • the internal components of my cleaner are ensconced within a lightweight molded plastic housing comprising a pair of mating shell halves.
  • the housing has integral, inwardly projecting portions defining various pockets, grooves and compartments which receive the motor and fan unit, the filter bag, the switch assembly, a blower coupling assembly, and an orifice cone which is disposed between the fan intakeand the filter bag to prevent the bag from being drawn into the intake of the fan.
  • the split shell construction of the cleaner housing provides a means by which the internal components can be assembled and inexpensively within the housing.
  • a highly efiicient airflow for cooling the motor is provided by disposing the motor and centrifugal fan assemblies within a cylindrical can.
  • the can and a dished diffuser disposed concentrically therein guide the airflow from the fan axially rearwardly.
  • an annular member Located around the motor and within the can is an annular member having radially inwardly curved blades which direct the rearwardly flowing air inwardly over and through the motor assembly.
  • FIG. 2 is a partial section view of the assembled cleaner taken on a horizontal plane through the center of the cleaner, with a part of the motor assembly broken away to show the blower coupling assembly.
  • FIG. 4 is a section view taken on lines 4-4 in FIG. 2.
  • FIG. 1 it will be seen that I provide a lightweight portable vacuum cleaner having a slender, compact, box-like construction. A detailed description of the construction of my cleaner follows, each component of the cleaner being described roughly in the order in which the air flowing through the cleaner touches that component.
  • the housing for my cleaner comprises a pair of mating shell halves, a right half 1 and a left half 2 (when viewed from the top and front of the cleaner).
  • the housing is open at its forward end, a cover 3 being provided to close the open end.
  • the cover 3 is easily removed from or assembled upon the housing by means of a toggle clamp 4.
  • the clamp 4 is biased into the closed position by a U-shaped overcenter spring 5.
  • the outturned legs 6, 7 of the spring 5 are rotatably mounted in eyes (not of the cover 3, the cover 3 can be pivoted free of the housing from its position beneath an overhanging lip 10' integral with the forward end of the housing.
  • FIGS. 1-3 of the drawings, and especially FIG. 2 it will be seen that my filter means is a filter bag 12 located in an enclosure 13 formed in the forward end of the housing.
  • the mouth of the bag 12 is sealed around the air inlet 11 in the cover 3.
  • a rubber gasket 14 on a rectangular frame 15 disposed in the mouth of the bag 12 is supported upon a ledge 16 integral with the inner periphery of the open end of the housing.
  • a rubber one-way valve 17 comprising essentially a resilient flap 18, serves to close an inner end of the air inlet 11 when the cleaner is not operating, thus preventing dirt trapped in the bag 12 from escaping from the housing.
  • the filter bag enclosure 13 is formed by the walls 19, the cover 3, and an integral partition 22 extending transversely across the interior of the housing. It is desirable that the enclosure 13 be sealed off from the outside in order that no air may leak into the enclosure during operation of the cleaner.
  • a groove 23 is formed in the left shell half 2 and a flange 24 on the right shell half 1 along the junction line between the shell halves which define the enclosure 13 for the filter bag 12. When the mating shell halves 1, 2 are joined, the groove 23 receives the flange 24 in a slight interfering fit; the joint thus formed is effective to preclude entry of outside air into the enclosure 13.
  • a truncated conical grating 26 is disposed in the aperture to extend the filtering surface of the bag 12 and also to prevent the bag 12 from being drawn therethrough.
  • the grating 26 has an annular flange 27 which is held between the shell halves 1, 2 in an annular groove 28 formed in the edge of the aperture.
  • the grating 26 is provided with angularly spaced holes 29 which admit the filtered air from the enclosure 13 into the aperture in the partition 22.
  • a motor-fan compartment 30 is formed in the interior of the rear section of the housing on the opposite side of the partition 22 from the filter ba-g enclosure 13.
  • the motor assembly will be seen at 31 and a centrifugal fan at 32 mounted on the forward end of the motor shaft. It is evident from FIGS. 1 and 2 that the motor assembly 31 and the fan 32 are positioned within a cylindrical air deflecting can 33. Vibration and noise generated within the can 33 are isolated from the cleaner housing by means of a lining of insulation 34 covering the inner surfaces of the side walls 35 of the compartment 30, and by an annular molded rubber gasket 36 embracing the forward end of the can 33.
  • the insulation 34 completely covers all exposed surfaces of compartment 30 to flameproof the plastic body shells 1 and 2 in case of fire in the motor.
  • the filtered air entering the axial inlet 37 of the fan 32 is thrown radially outwardly against the inner surface of the can 33.
  • the airflow is guided ax ially rearwardly by air deflecting means comprising the inner surface of the can 33 and the outer surface of a dished diffuser 40.
  • the diffuser 40 is supported upon a forward portion (not shown) of a cast metal bearing retainer having an annular body 41 fitting within the open end of the can 33.
  • the forward portion of the bearing retainer which supports the diffuser 40 also retains the bearings for the forward end of the motor shaft.
  • This forward portion is integral with and supported by a pair of diametrically opposed arms, one of which is shown at 42, extending forwardly and radially inwardly from the annular body 41 of the bearing retainer.
  • the annular body 41 of the bearing retainer is provided with a series of angularly spaced, radially inwardly curved blades 43.
  • the airflow whirling rearwardly between the diffuser 40 and the inner surface of the can 33 is caught by the blades 43 and directed radially inwardly over and through the motor assembly 31 (see FIG. 4). It is evident from the drawing and the above description that the can 33, diffuser 40 and the blades 43 on the retainer combine to create a highly effective and eflicient means for guiding the airflow for maximum cooling of the motor components.
  • a cast support member Bolted to the annular body 41 of the bearing retainer is a cast support member having a rear portion 44 which serves to hold the rear bearings for the motor shaft and side portions 45 which support the motor brushes 46 and associated assemblies.
  • the gasket 49 receives in a circular recess the rear portion 44 of the support member, functioning to isolate within the housing some of the vibration and noise generated by the motor.
  • an offset portion 50 of the rear wall 48 has a circular exhaust outlet aperture 51 formed therein (see FIGS. 2 and 5).
  • a molded blower coupling member 52 is held in the aperture 51 between the mating shell halves 1, 2 of the housing.
  • the blower coupling memberSZ comprises a tubular body 53 having openings 54 which admit air into the coupling member 52.
  • Each of the openings 54 is divided by spaced bars 55 which prevent objects from being inserted through the coupling member 52 and into the interior of the cleaner.
  • the inner end 56 of the tubular body 53 of the coupling member 52 likewise has an opening 57 divided by bars 58 for admitting air into the coupling member 52.
  • a backplate 62 integral with the rear of the tubular body 53 of the coupling member 52, assists in locating and stabilizing the coupling member 52 in the exhaust outlet aperture 51.
  • an arcuate lug 63 is formed projecting from the tubular body 53 of the coupling member 52 in spaced relationship with respect to the backplate 62.
  • the lug 63 and the backplate 62 form a channel which receives a portion of the perimeter of the outlet aperture 51.
  • a hollow handle is formed integrally with-the cleaner housing across the top of the housing, right and left half shells of which are shown at 65 and 66, respectively, (see particularly FIGS. 1 and 3).
  • a recess is formed in the rear of the handle to receive a C-shaped clip 67 which serves to store a wand or hose section along the top of the handle.
  • the clip 67 is rotatable upon a pin 68 to an operative position in which resilient arms 69, 70 of the clip 67 extend from the top of the handle, or to an inoperative position in which the outer surfaces of the arms 69, 70, lie flush with the outer surface of the handle.
  • the mating shell halves 1, 2 of the housing are secured together by -a plurality'of screws 82 which pass through guide lugs 83 integral with the left shell half 2 and screw into threads molded into corresponding lugs in the right shell half 1.
  • the blower coupling member is anchored more firmly in the exhaust outlet aperture 51 by. means of a single screw 84 entering the backplate 62 of the blower coupling member 52 through the right shell half 1 of the housing.
  • a lightweight portable vacuum cleaner comprising:
  • said filter bag side walls being arranged for engagement with said inwardly directed ribs, and said filter bag end wall being arranged for engagement with said grill so that air may enter said air inlet, pass through the side walls of said filter bag adjacent to said ribs and :also pass through the end wall of said filter bag adjacent to said grill, said ribs, partition and grill providing a rigid, compact construction and also forming a construction for achieving efficient filter bag use.
  • a lightweight portable vacuum cleaner comprising;
  • each of said casing halves forming a side wall, one-half of a bottom wall, and one-half of a top wall;
  • each of said inwardly extending half partitions including a front surface, a rear surface, and a narrow inwardly facing surface
  • cylindrical motor and fan assembly a resilient front wall for abutting said partition, andtop, bottom and side surfaces formed to tightly fit the top, side and bottom walls of said casing halves, so that said gasket in combination with said partition partially supports said motor fan assembly.
  • a lightweight portable vacuum cleaner comprising:
  • each of said leasing halves forming a side wall
  • a lightweight portable vacuum cleaner comprising:
  • each of said casing halves forming a side-wall, one-half of a bottom wall, and one-half of a top wall;
  • each of said inwardly extending half partitions including a front surface, a rear surface, and a narrow inwardly facing surface;
  • a lightweight portable vacuum cleaner comprising:
  • each of said casing halves forming a side wall, one-half of a bottom wall, and one-half of a top wall;
  • an integrally molded plastic blower coupling said coupling including a generally cylindrical wall, a generally flat bottom wall integrally connected to and tangent to said generally cylindrical wall, a generally fiat rear wall integrally connected to and perpendicular to said bottom wall and said cylindrical wall, a front wall integrally connected to said generally cylindrical wall arranged perpendicular to said bottom wall, a land extending upwardly from said generally cylindrical wall, a plurality of openings formed in said cylindrical wall, a plurality of openings formed in said front wall, and a hole formed in said bottom wall;
  • each of said half rear walls including a narrow inwardly facing semicylindrical surface
  • each of said casing halves forming a side wall, onel-half of a bottom Wall, and one-half of a top wa
  • an integrally molded plastic blower coupling said coupling including a generally cylindrical wall, a

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  • Electric Suction Cleaners (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US411760A 1964-11-17 1964-11-17 Lightweight portable vacuum cleaner Expired - Lifetime US3334370A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US411760A US3334370A (en) 1964-11-17 1964-11-17 Lightweight portable vacuum cleaner
GB43147/65A GB1114812A (en) 1964-11-17 1965-10-12 Improvements in lightweight portable vacuum cleaners
FR38408A FR1455529A (fr) 1964-11-17 1965-11-15 Perfectionnements apportés aux aspirateurs
DEG33405U DE1930895U (de) 1964-11-17 1965-11-17 Tragbarer handstaubsauger.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US411760A US3334370A (en) 1964-11-17 1964-11-17 Lightweight portable vacuum cleaner

Publications (1)

Publication Number Publication Date
US3334370A true US3334370A (en) 1967-08-08

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ID=23630201

Family Applications (1)

Application Number Title Priority Date Filing Date
US411760A Expired - Lifetime US3334370A (en) 1964-11-17 1964-11-17 Lightweight portable vacuum cleaner

Country Status (4)

Country Link
US (1) US3334370A (de)
DE (1) DE1930895U (de)
FR (1) FR1455529A (de)
GB (1) GB1114812A (de)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477087A (en) * 1967-06-19 1969-11-11 Bon Aire Ind Inc Vacuum cleaner
US3491519A (en) * 1966-10-26 1970-01-27 Electrolux Ab Vacuum cleaner
US3510904A (en) * 1967-11-24 1970-05-12 Nat Union Electric Corp Thermal control means for a cleaner assembly
US3513500A (en) * 1967-03-01 1970-05-26 Matsushita Electric Ind Co Ltd Compact hand vacuum cleaner
US3599273A (en) * 1968-10-01 1971-08-17 Tokyo Electric Co Ltd Vacuum cleaner
US4573234A (en) * 1984-01-30 1986-03-04 The Scott & Fetzer Company Hand-held vacuum cleaner
US4633543A (en) * 1984-11-09 1987-01-06 Royal Appliance Mfg. Co. Hand vacuum cleaner
US4809394A (en) * 1986-08-29 1989-03-07 Hitachi, Ltd. Vacuum cleaner having a blower facility structure
US5016316A (en) * 1989-12-22 1991-05-21 The Hoover Company Motor fan cover and sealing arrangement
US5143524A (en) * 1990-02-20 1992-09-01 The Scott Fetzer Company Electrostatic particle filtration
US5224238A (en) * 1991-04-18 1993-07-06 Ryobi Motor Products Corp. Horizontal canister vacuum
US5376168A (en) * 1990-02-20 1994-12-27 The L. D. Kichler Co. Electrostatic particle filtration
US5405434A (en) * 1990-02-20 1995-04-11 The Scott Fetzer Company Electrostatic particle filtration
US5479676A (en) * 1994-05-12 1996-01-02 Electrolux Corporation Vacuum cleaner
USRE36107E (en) * 1990-09-26 1999-02-23 Gmi Holdings, Inc. Manually adjustable housing portions for actuating an electrical appliance switch
US5920953A (en) * 1997-07-21 1999-07-13 Windsor Industries, Inc. Carpet and upholstery cleaner/extractor
US6485259B2 (en) * 1999-02-10 2002-11-26 Shop Vac Corporation Vaneless impeller housing for a vacuum cleaner
US20020176777A1 (en) * 1999-05-21 2002-11-28 David Reinfeld Safety plate for a vortex attractor
US20040034963A1 (en) * 2002-08-23 2004-02-26 Rogers Willie E. Vacuum tool for vacuum cleaner
US7140069B1 (en) * 2002-07-19 2006-11-28 Dangerfield John N Grease extractor
US9456728B2 (en) 2011-10-13 2016-10-04 Aktiebolaget Electrolux Vacuum cleaner
US20220160195A1 (en) * 2020-11-20 2022-05-26 Makita Corporation Cleaner and method for setting cleaner
US20230180977A1 (en) * 2016-03-31 2023-06-15 Lg Electronics Inc. Cleaner

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB257490A (en) * 1926-02-09 1926-09-02 Otto Aldinger Improvements in vacuum and like cleaning apparatus
US2182343A (en) * 1936-04-23 1939-12-05 Electrolux Corp Vacuum cleaner
US2309593A (en) * 1941-08-09 1943-01-26 Ralph W Hunter Pavement
US2422860A (en) * 1945-03-07 1947-06-24 Scovill Manufacturing Co Vacuum cleaner
US2503918A (en) * 1946-12-23 1950-04-11 Eureka Williams Corp Tank type suction cleaner
US2776726A (en) * 1954-01-07 1957-01-08 Hoover Co Suction cleaner and filter therefor
US2789661A (en) * 1954-01-07 1957-04-23 Hoover Co Pneumatic filter seal
US2915237A (en) * 1956-06-13 1959-12-01 Electrolux Corp Centrifugal blowers
US2986765A (en) * 1961-06-06 Suction cleaner
FR1299817A (fr) * 1960-09-09 1962-07-27 Miele & Co Procédé pour l'insonorisation d'aspirateurs de poussière et moyen d'insonorisation
FR1366989A (fr) * 1963-06-13 1964-07-17 Mauz & Pfeiffer Aspirateur de poussière
US3193992A (en) * 1962-12-20 1965-07-13 Kingston Products Corp Upright vacuum cleaner

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986765A (en) * 1961-06-06 Suction cleaner
GB257490A (en) * 1926-02-09 1926-09-02 Otto Aldinger Improvements in vacuum and like cleaning apparatus
US2182343A (en) * 1936-04-23 1939-12-05 Electrolux Corp Vacuum cleaner
US2309593A (en) * 1941-08-09 1943-01-26 Ralph W Hunter Pavement
US2422860A (en) * 1945-03-07 1947-06-24 Scovill Manufacturing Co Vacuum cleaner
US2503918A (en) * 1946-12-23 1950-04-11 Eureka Williams Corp Tank type suction cleaner
US2776726A (en) * 1954-01-07 1957-01-08 Hoover Co Suction cleaner and filter therefor
US2789661A (en) * 1954-01-07 1957-04-23 Hoover Co Pneumatic filter seal
US2915237A (en) * 1956-06-13 1959-12-01 Electrolux Corp Centrifugal blowers
FR1299817A (fr) * 1960-09-09 1962-07-27 Miele & Co Procédé pour l'insonorisation d'aspirateurs de poussière et moyen d'insonorisation
US3193992A (en) * 1962-12-20 1965-07-13 Kingston Products Corp Upright vacuum cleaner
FR1366989A (fr) * 1963-06-13 1964-07-17 Mauz & Pfeiffer Aspirateur de poussière

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491519A (en) * 1966-10-26 1970-01-27 Electrolux Ab Vacuum cleaner
US3513500A (en) * 1967-03-01 1970-05-26 Matsushita Electric Ind Co Ltd Compact hand vacuum cleaner
US3477087A (en) * 1967-06-19 1969-11-11 Bon Aire Ind Inc Vacuum cleaner
US3510904A (en) * 1967-11-24 1970-05-12 Nat Union Electric Corp Thermal control means for a cleaner assembly
US3599273A (en) * 1968-10-01 1971-08-17 Tokyo Electric Co Ltd Vacuum cleaner
US4573234A (en) * 1984-01-30 1986-03-04 The Scott & Fetzer Company Hand-held vacuum cleaner
US4633543A (en) * 1984-11-09 1987-01-06 Royal Appliance Mfg. Co. Hand vacuum cleaner
US4809394A (en) * 1986-08-29 1989-03-07 Hitachi, Ltd. Vacuum cleaner having a blower facility structure
US5016316A (en) * 1989-12-22 1991-05-21 The Hoover Company Motor fan cover and sealing arrangement
US5405434A (en) * 1990-02-20 1995-04-11 The Scott Fetzer Company Electrostatic particle filtration
US5376168A (en) * 1990-02-20 1994-12-27 The L. D. Kichler Co. Electrostatic particle filtration
US5143524A (en) * 1990-02-20 1992-09-01 The Scott Fetzer Company Electrostatic particle filtration
USRE36107E (en) * 1990-09-26 1999-02-23 Gmi Holdings, Inc. Manually adjustable housing portions for actuating an electrical appliance switch
US5224238A (en) * 1991-04-18 1993-07-06 Ryobi Motor Products Corp. Horizontal canister vacuum
US5479676A (en) * 1994-05-12 1996-01-02 Electrolux Corporation Vacuum cleaner
US5638573A (en) * 1994-05-12 1997-06-17 Electrolux Corporation Vacuum cleaner
US5640740A (en) * 1994-05-12 1997-06-24 Electrolux Corporation Vacuum cleaner
US5920953A (en) * 1997-07-21 1999-07-13 Windsor Industries, Inc. Carpet and upholstery cleaner/extractor
US6485259B2 (en) * 1999-02-10 2002-11-26 Shop Vac Corporation Vaneless impeller housing for a vacuum cleaner
US20020176777A1 (en) * 1999-05-21 2002-11-28 David Reinfeld Safety plate for a vortex attractor
US7140069B1 (en) * 2002-07-19 2006-11-28 Dangerfield John N Grease extractor
US20040034963A1 (en) * 2002-08-23 2004-02-26 Rogers Willie E. Vacuum tool for vacuum cleaner
US9456728B2 (en) 2011-10-13 2016-10-04 Aktiebolaget Electrolux Vacuum cleaner
US20230180977A1 (en) * 2016-03-31 2023-06-15 Lg Electronics Inc. Cleaner
US20220160195A1 (en) * 2020-11-20 2022-05-26 Makita Corporation Cleaner and method for setting cleaner
US11653802B2 (en) * 2020-11-20 2023-05-23 Makita Corporation Cleaner and method for setting cleaner

Also Published As

Publication number Publication date
FR1455529A (fr) 1966-04-01
GB1114812A (en) 1968-05-22
DE1930895U (de) 1966-01-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BLACK & DECKER, INC., 1423 KIRKWOOD HIGHWAY NEWARK

Free format text: ASSIGNS AS OF APRIL 27, 1984 THE ENTIRE INTEREST;ASSIGNOR:GENERAL ELECTRIC COMPANY A NY CORP.;REEL/FRAME:004349/0275

Effective date: 19840824