US3199785A - Portable spraying device and support - Google Patents

Portable spraying device and support Download PDF

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Publication number
US3199785A
US3199785A US289859A US28985963A US3199785A US 3199785 A US3199785 A US 3199785A US 289859 A US289859 A US 289859A US 28985963 A US28985963 A US 28985963A US 3199785 A US3199785 A US 3199785A
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US
United States
Prior art keywords
support
mounting plate
receptacle
struts
blower
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
US289859A
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English (en)
Inventor
Schmierer Heinz
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.)
Solo Kleinmotoren GmbH
Original Assignee
Solo Kleinmotoren GmbH
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 Solo Kleinmotoren GmbH filed Critical Solo Kleinmotoren GmbH
Application granted granted Critical
Publication of US3199785A publication Critical patent/US3199785A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2475—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device comprising a container carried on the back of the user
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0082—Undercarriages, frames, mountings, couplings, tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2408—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus

Definitions

  • the present invention relates to a portable spraying device for the dissemination of finely divided materials in a gas stream and, more particularly, to an apparatus adapted to be carried upon the back of the user and provided with fluid-displacing means together with a prime mover for spraying same.
  • Another object of this invention is to provide a support for the prime mover and/or blower of a spraying device which is constructed of a minimum number of parts and thus is less prone to breakdown in the field but which can be transported on the back of the user for long periods without difiiculty.
  • Yet another object of this invention is to provide, in a spraying device of this type, improved but relatively inexpensive means for transporting the fluid to be dispensed as well as the means for dispensing it.
  • a portable support adapted to be carried upon the back of the user, for a spraying device wherein the support is formed integrally with a receptacle for the fluid to be dispensed.
  • the support is constituted with a mounting member upon which the driving engine and the blower are secured and the receptacle in a single piece, both the mounting portion and the receptacle portion being formed from a synthetic resin.
  • the support can, consequently, be molded from a synthetic resin such as polystyrene, which is shockresistant and can, possibly, even be somewhat resilient so as to be comfortable when resting against the back of the user, the receptacle portion being produced by conventional blow-molding techniques concurrently with the molding of the remainder of the support.
  • the mounting portion of the latter comprises a generally flat plate adapted to rest against the back of the user and which may be curved slightly to conform to the configuration of the back.
  • the vertical marginal portions of the aforedescribed mounting plate are provided with integral reinforcing members, which can be thickened Zones of synthetic resin or webs molded therefrom when the receptacle portion and the mounting portion of the support are produced.
  • integrally formed pedestals can be provided to reinforce the region at which the engine and blower are joined to the support.
  • the engine and blower form a unitary body of the type more specifically described in commonly assigned copending application Ser. No. 290,116, now US. Patent No. 3,165,256, filed concurrently herewith by Heinz Emmerich.
  • the motor/blower unit can include an annular blower housing mounted upon the aforementioned pedestals while the internal combustion engine, which may be of the onecylinder, two-cycle type, is mounted upon the blower housing with its shaft carrying the blower rotor.
  • the large moment of force due to the weight of a conventional ignition system may be markedly reduced if the magneto of this system is incorporated, at least in part, within a blower housing.
  • a movable element of this magneto e.g.
  • a permanent magnet may be provided on the blower rotor or impeller, which also serves as a flywheel for the engine, while the field coil and its core are juxtaposed with the rotor magnet and mounted within the blower housing. Since the weight of the breaker points is insignificant, they can be accessibly disposed within a removable casing on the rearmost part of the motor shaft, which is provided with the usual cam for operating the breaker points.
  • Still another feature of the present invention resides in the provision of a stand for the spraying device which extends transversely to the mounting plate in the rearward direction so that it underlies the motor/ blower unit whose center of gravity is preferably disposed at a location sufficiently inward of this stand so as to insure stability of the device in an upright condition.
  • the stand may be composed of a U-shaped tube (e.g. of metal) whose shank portions are bent through an angle of and are rigidly embedded within the synthetic resin forming the support.
  • the shank portions are irnbedded in the thickened marginal zones of the support when the latter is molded. These thickened portions can form with the tubular receptacle a frame spanned by the mounting plate.
  • the thickened portion along the forward surface of this plate, there may be provided a recess adapted to receive a cushion of, for example, foam rubber.
  • the plate can, of course, be provided with formations (e.g. slots) permitting the attachment of the usual shoulder straps or other means for holding the support on the back of the user.
  • the mounting plate can be provided along its front surface with a sheet of cushioning material cemented thereto.
  • the location of the center of gravity of the device and the centers of gravity of its component parts determine the convenience of carrying the apparatus. It has been found that a particularly effective distribution of Weight is attained when the fluidcontaining chamber of the receptacle integral with the mounting plate lies, for the most part, wholly rearwardly thereof, this plate being, in effect, tangential to the receptacle.
  • the motor/blower unit can thus overlie this receptacle so that the center of gravity of the receptacle, when containing liquid, lies vertically above the center of gravity of the motor/blower unit especially when this unit is provided with a magneto disposed within or mounted upon the blower housing.
  • the center of gravity of the entire device should be vertically above the center of the supporting surface defined by the stand.
  • the support is formed integrally with a further receptacle separated by suitable partition means from the receptacle containing the fiuid to be dispensed, serving as a tank for the fuel.
  • both receptacles are generally elongated and extend horizontally transversely to the reinforcing webs and thickened zones previously described.
  • the fuel tank should, however, be formed proximal to the motor/ blower unit.
  • the mounting plate can be made hollow and formed with an interior cavity communicating with the receptacle to serve as an additional reservoir for the liquid or powder to be dispensed.
  • reinforcing members bridging the two generally parallel wall portions of the mounting plate at spaced locations so as to minimize any impediment to the flow of the fluent material therethrough.
  • These reinforcing members can serve, simultaneously, as the mounting pedestals for the motor/ blower unit.
  • the - hollow mounting plate can also act as the fuel receptacle while a tubular fuel tank can be provided along the lower edge of the mounting plate if desired.
  • the reinforcing elements which also function as pedestals for the motor/blower unit, can have a conical configuration for optimum flow of the material to be dispensed.
  • FIG. 1 is a rear-elevational view of a spraying device according to the present invention
  • FIG. 1A is a cross-sectional view taken along the lines IA-IA of FIG. 1;
  • FIG. 2 is a side-elevational view of this device
  • FIG. 3 is a rear-elevational view of a modified spraying device with an integrally formed fuel tank
  • FIG. 4 is a vertical cross-sectional view through the device of FIG. 3 with the motor/blower unit shown diagrammatically in elevation;
  • FIG. 5 is a view similar to FIG. 1 of a further modification wherein the mounting plate is generally hollow;
  • FIG. 6 is a view similar to FIG. 4 showing details of the device of FIG. 5.
  • FIGS. 1 and 2 I show a portable sprayer adapted to be mounted upon the back of the user which comprises a support integrally formed from a synthetic resin (such as polystyrene) with a receptacle 1 having a removable cap 2 closing its mouth 1' and a frame 35 upon which a motor/ blower unit 13, 14 is mounted.
  • the back-engaging portion 3 of the support includes a pair of thickened marginal zones 4, serving as main struts and a mounting plate 5 spanning these struts and integral therewith and with the receptacle 1 (as best seen in FIG. 1A).
  • the mounting plate 5 functions as the web of a girder or beam profile whose flanges can be considered to be the thickened zones or struts 4.
  • the mounting plate 5 is formed integrally with a plurality of pedestals 6 of frustoconical configuration and formations, such as slots 7 around a rod '7' by means of which the shoulder-engaging carrying straps 8 can be attached to the mounting plate.
  • the carrying straps can be fed through the slots '7, looped around the rod 7' and maintained in this loop arrangement by a strap-adjusting buckle, not shown.
  • the motor/blower unit 13, 14 which is more fully described in the aforementioned copending application, comprises a rotary blower 14 whose mounting lugs 14 are secured by bolts 14" to the pedestal 6 and an inter nal-combustion engine 13 mounted upon the housing of blower 14.
  • Pedestals 6 hold the housing of blower 14 away from plate 5 by a distance sufiicient to permit induction of air into the blower through its axial opening when its radial-vane impeller is rotated by the motor shaft.
  • the air stream from outlet 15 of the blower is connected by a conventional tube to the spray head where it joins a stream conducted thereto by a tube 1 from receptacle 1.
  • the back-contacting wall 12 of the support is molded so as to conform to the contours of the back of the user. Between the struts 4 (FIG. 1A) a resilient cushion 12' can be provided. It will be noted that the center of gravity of the device lies within the confines of stand 19 and preferably at about the midpoint of the support surface defined by the stand.
  • the receptacle 1a is integral with the support but separated from a fuel tank 16 also integral therewith, by a partition 16a, both containers extending longitudinally along the upper edge of the mounting plate 5a,
  • this mounting plate is provided with slots 7a to which the shoulder straps can be secured and the blower 14a upon which is mounted the engine 13a.
  • the latter is provided with a gasifier or vaporizer 2641 as is conventional in two-stroke engines, this carburetor being connected with the fuel tank 16a by means of a fuel line 1912 having a shutolf valve 19a.
  • An inlet 18 with its cap 18a permits the filling of the fuel tank.
  • the thickened portions 4a of the frame have the shanks 9a of the stand 11a embedded therein while a cover 2a is provided for the receptacle 1a for the fluid to be dispensed.
  • ribs 17 Intermediate the receptacles 1a and 16 along the vertical edges of the support, there are provided reinforcing ribs 17 to prevent strains from arising at the location at which the receptacles are integral with the mounting plate 5a. Similar ribs 17a reinforce the junction between fuel tank 16 and the mounting plate.
  • the receptacle 1b communicates with the interior of the back-engaging plate Sb whose generally parallel walls 22 and 23 are spaced apart by frustoconical reinforcing elements 21, at least some of which can serve as pedestals 6b for securing the motor/blower unit 13b, 14b to the hollow mounting plate 51).
  • One such pedestal is indicated at 24 in FIG. 6.
  • an outlet tube 112 serves to conduct the fluid to be dispensed from the receptacle 1b, 5b to the spray nozzle.
  • the stand 9b, 11b is, of course, also provided.
  • a unitary support for a portable spraying device comprising a mounting plate adapted to rest against the back of a user, a pair of marginal struts integral with said mounting plate along opposite lateral edges thereof, and a receptacle integral with said mounting plate and said struts along a further edge of said mounting plate generally transverse to said struts, said plate, struts and receptacle being continuous with one another and integrally molded from synthetic-resin sheet material, said receptacle being defined between layers of said sheet material.
  • a support as defined in claim 1 further comprising a stand imbedded in said mounting plate and extending rearwardly thereof perpendicularly to said struts and forming a standing surface encompassing the vertical projection onto said surface of the center of gravity of said support with fluid-displacement means secured to said mounting plate.
  • a spraying device transportable on the back of a user comprising a unitary support including a back-engaging mounting plate, a receptacle for a fluent material to be dispensed integral with said mounting plate, and reinforcing struts along opposite lateral edges of said mounting plate formed integrally therewith, said plate, struts and receptacle being continuous with one another and integrally molded from synthetic-resin sheet material, said receptacle being defined between layers of said sheet material and an internal-combustion engine secured to said support.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US289859A 1962-06-26 1963-06-24 Portable spraying device and support Expired - Lifetime US3199785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES80079A DE1229333B (de) 1962-06-26 1962-06-26 Rueckentragbares Spruehgeraet fuer die Schaedlingsbekaempfung

Publications (1)

Publication Number Publication Date
US3199785A true US3199785A (en) 1965-08-10

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ID=7508650

Family Applications (1)

Application Number Title Priority Date Filing Date
US289859A Expired - Lifetime US3199785A (en) 1962-06-26 1963-06-24 Portable spraying device and support

Country Status (8)

Country Link
US (1) US3199785A (ko)
AT (1) AT254606B (ko)
BE (1) BE634124A (ko)
CH (1) CH422422A (ko)
DE (1) DE1229333B (ko)
DK (1) DK112482B (ko)
GB (1) GB962902A (ko)
NL (1) NL294499A (ko)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421697A (en) * 1965-12-04 1969-01-14 Birfield Eng Ltd Spraying equipment
US4600129A (en) * 1984-01-30 1986-07-15 Komatsu Zenoah & Co. Chemicals spreader
US4651903A (en) * 1986-04-21 1987-03-24 Pagliai Ferro D Motorized pump pressurized liquid sprayer
US4662551A (en) * 1985-11-12 1987-05-05 Corona Clipper Company Back-pack power supply for pneumatic hand tools
US5018584A (en) * 1989-10-20 1991-05-28 Tomlinson John C Fire suppressor
US5176303A (en) * 1991-04-29 1993-01-05 Textron Inc. Back pack with fuel tank
US20090097989A1 (en) * 2007-10-15 2009-04-16 Roland Santa Ana Portable hybrid gas compressor
EP2402090A3 (en) * 2010-06-29 2013-06-26 Guarany Industria e Comércio Ltda. Improvement of a knapsack atomizer
US10625284B1 (en) 2019-03-13 2020-04-21 Chapin Manufacturing, Inc. Modular frame for a backpack sprayer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5178312A (en) * 1988-11-10 1993-01-12 Kioritz Corporation Backpack frame and production method therefor
JPH0489891U (ko) * 1990-12-19 1992-08-05

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB606440A (en) * 1942-05-13 1948-08-13 Ulrich Meister Improvements to portable fluid sprinkling apparatus
US2595528A (en) * 1950-04-28 1952-05-06 James L Kempthorne Portable insulation spraying device
US2752200A (en) * 1955-04-19 1956-06-26 Santarelli Vincent Sprayer
GB768419A (en) * 1955-04-15 1957-02-13 Donald Edmund Barker Improvements in or relating to portable power units
FR1197163A (fr) * 1958-05-27 1959-11-27 Perfectionnements aux appareils dorsaux à moteur destinés au traitement des cultures
GB837369A (en) * 1957-08-17 1960-06-15 Max Holder Spraying apparatus
FR1226484A (fr) * 1959-01-28 1960-07-13 Phillips & Pain Vermorel Perfectionnements aux moto-pulvérisateurs ou moto-poudreurs à dos
US2958155A (en) * 1954-12-28 1960-11-01 Kleinmotoren G M B H Fa Portable spraying apparatus
US3059802A (en) * 1959-10-30 1962-10-23 Wiley D Mitchell Portable tank construction
US3080269A (en) * 1959-05-21 1963-03-05 Us Rubber Co Method of lining pipe
US3084086A (en) * 1958-06-02 1963-04-02 Fred T Roberts & Company Method of making a reinforced molded flexible hose

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB606440A (en) * 1942-05-13 1948-08-13 Ulrich Meister Improvements to portable fluid sprinkling apparatus
US2595528A (en) * 1950-04-28 1952-05-06 James L Kempthorne Portable insulation spraying device
US2958155A (en) * 1954-12-28 1960-11-01 Kleinmotoren G M B H Fa Portable spraying apparatus
GB768419A (en) * 1955-04-15 1957-02-13 Donald Edmund Barker Improvements in or relating to portable power units
US2752200A (en) * 1955-04-19 1956-06-26 Santarelli Vincent Sprayer
GB837369A (en) * 1957-08-17 1960-06-15 Max Holder Spraying apparatus
FR1197163A (fr) * 1958-05-27 1959-11-27 Perfectionnements aux appareils dorsaux à moteur destinés au traitement des cultures
US3084086A (en) * 1958-06-02 1963-04-02 Fred T Roberts & Company Method of making a reinforced molded flexible hose
FR1226484A (fr) * 1959-01-28 1960-07-13 Phillips & Pain Vermorel Perfectionnements aux moto-pulvérisateurs ou moto-poudreurs à dos
US3080269A (en) * 1959-05-21 1963-03-05 Us Rubber Co Method of lining pipe
US3059802A (en) * 1959-10-30 1962-10-23 Wiley D Mitchell Portable tank construction

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421697A (en) * 1965-12-04 1969-01-14 Birfield Eng Ltd Spraying equipment
US4600129A (en) * 1984-01-30 1986-07-15 Komatsu Zenoah & Co. Chemicals spreader
US4662551A (en) * 1985-11-12 1987-05-05 Corona Clipper Company Back-pack power supply for pneumatic hand tools
US4651903A (en) * 1986-04-21 1987-03-24 Pagliai Ferro D Motorized pump pressurized liquid sprayer
US5018584A (en) * 1989-10-20 1991-05-28 Tomlinson John C Fire suppressor
US5176303A (en) * 1991-04-29 1993-01-05 Textron Inc. Back pack with fuel tank
US20090097989A1 (en) * 2007-10-15 2009-04-16 Roland Santa Ana Portable hybrid gas compressor
EP2402090A3 (en) * 2010-06-29 2013-06-26 Guarany Industria e Comércio Ltda. Improvement of a knapsack atomizer
US10625284B1 (en) 2019-03-13 2020-04-21 Chapin Manufacturing, Inc. Modular frame for a backpack sprayer

Also Published As

Publication number Publication date
CH422422A (de) 1966-10-15
DK112482B (da) 1968-12-16
NL294499A (ko)
BE634124A (ko) 1963-11-04
GB962902A (en) 1964-07-08
DE1229333B (de) 1966-11-24
AT254606B (de) 1967-05-26

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