US2195929A - Hand spraying implement - Google Patents

Hand spraying implement Download PDF

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Publication number
US2195929A
US2195929A US185960A US18596038A US2195929A US 2195929 A US2195929 A US 2195929A US 185960 A US185960 A US 185960A US 18596038 A US18596038 A US 18596038A US 2195929 A US2195929 A US 2195929A
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United States
Prior art keywords
pump
motor
nozzle
piston
axis
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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
US185960A
Inventor
Klett Erich
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
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Publication of US2195929A publication Critical patent/US2195929A/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
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0894—Gun with a container which, in normal use, is located above the gun
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0855—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven
    • B05B9/0861—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven the motor being electric

Definitions

  • the present invention relates to handspraying implements for spraying colour paint or like material of the type incorporating a pump which ejects the material to be sprayed through a a nozzle and a driving motor builton to the pump.
  • the motor and the pump are either arranged one behind the'other in the direction of spraying, or alternatively so arranged relative to each other l that the shaft of the motor runs vertically to the stroke direction of the pump.
  • a special complete casing is neces*- sary both for the motor-and the pump, which is not always advantageous with regard to weight and ease in handling of the implement.
  • the pump and the motor are assembled with their longitudinal sides bearing against each other.
  • Figure 1 shows an axial section through the implement.
  • Figure 2 is an elevation of the implement seen against the direction of spraying.
  • casing I encloses both the motor and the pump of the spraying implement andis provided on the lower side with a handle 2. At the end opposite ⁇ the spraying nozzle, the casing I is sealed by an elliptical cover 3.
  • the piston I2 is provided with a control head I2b.
  • the recesses on this control head I2b cooperate with the inlet opening Ma of a supply 6 chamber I4 for a lubricating auxiliary liquid insuch a manner that according to the extent of the turning of the piston I2 dierent amount of liquid is delivered per stroke.
  • the pis-ton I2 can be l0 turned from Ia'hand rocking grip 2l (only in Fig. 1) via a rod not shown.
  • the lubricating liquid supply chamber I4 is tightly closed by a closing screw I5.
  • the material to be sprayed 15 flows through an inlet opening I8 towards the pressure cylinder 30.
  • An auxiliary piston is guided in this cylinder so as to be freely rotatable. It is guided back into its original position after each pressure stroke by a return spring I6. 20
  • is moved to and fro by means of the auxiliary fluid in' rhythm with the movements of the piston I2, and inso doing presses the material to be sprayed into the middle bore 20h of a nozzle needle 20 via a non-re- 26 turn valve I9.
  • This nozzle needle is pressed with its front surface against the outlet of the pump with the aid of a cap nut 2
  • the nozzle mem- 80 ber 22 is longitudinally displaceable on the needle 20.
  • a portable hand operated liquid spraying device comprising a. nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being inl alignment with the axis of said pump, a driving motor drivablyconnected to said pump, saidmotor being arranged with its axis parallel to' the stroke axis of said pump and side by side therewith, and a handle arranged substantially trausverselyof the axes of said motor and pump.
  • a driving motor drivably connected to said pump, a casing for said pump, a casing for said motor, said casings being combined to form one common casing, said motor being arranged with its axis parallel to the stroke axis of said pump and side by side therewith, and a handle secured to said common casing and arranged substantially transversely of the axes of said motor and pump.
  • a portable hand operated liquid spraying device comprising a nozzle and a. piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis of said pump, a driving motor for said pump, said motor being arranged with its axis parallel to the stroke axis of said pump and side by side therewith, and a gear between said motor and said pump arranged at the end of the motor and of the pump opposite to said nozzle, and a handle arranged substantially transversely of the axes of said motor and pump.
  • a portable h and operated liquid spraying device comprising a nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis of said pump, a driving motor for said pump, said motor beingA arranged with its axis parallel to the stroke axis of said pump and side by side therewith, a gear between said motor and said pump, a common casing for said pump, said motor and said gear, and a handle secured to said common casing and arranged vsubstantially transversely of the axes of said motor and pump.
  • a portable hand operated liquid spraying device comprising a nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis o f said pump, a driving motor for said pump, said motor being arranged with its axis parallel to the stroke aids of said pump and side by side therewith, a gear between said motor and said pump,
  • said pump including a pump piston, and a spring resiliently pressing said piston against said cam disc, and a handle arranged substantially transversely of the axes of said motor and pump.
  • a portable hand operated liquid spraying device comprising a nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis of said pump, a driving motor for said pump, said motor being arranged with its axis parallel 'to the stroke axis of said pump and side by side therewith, a. gear between said motor and said pump, a frontal cam disc driven by said gear, said pump including a piston, a spring resiliently pressing said piston against said cam. disc, and a. rolling member in one end of said piston and bearing against said cam, and a handle arranged substantially transversely of the axes of said motor and pump.
  • a portable hand operated liquid spraying device comprising a nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis of said pump, a driving motor for said pump, said motor being arranged with its axis parallel to the stroke axis of said pump an'd side by side therewith, a gear between said motor and said pump, a frontal cam disc driven by said gear and having a groove therein, said pump including a piston, a spring pressing said piston against cam, and a rolling member in one end of said piston and bearing against said cam in said groove and a handle arranged substantially transversely of the axes of said motor and pump.

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Description

April 2 1940 E. VKLETT 2,195,929
HAND srnAYmG IMPLEMENT Filed Jan. 20, 1938 Patented Apr. 2, 1940 UNITED STATES HAND SPRAYING IMPLEMENT Erich Klett, Stuttgart-Bad Cannstatt, Germany,
assignor to Robert Bosch Gesellschaft mit beschrnkter Haftung, Stuttgart, Germany Application January 20, 1938, Serial No. 185,960 In Germany January 25,1937
'I Claims.
The present invention relates to handspraying implements for spraying colour paint or like material of the type incorporating a pump which ejects the material to be sprayed through a a nozzle and a driving motor builton to the pump.
In the known implements of this kind, the motor and the pump are either arranged one behind the'other in the direction of spraying, or alternatively so arranged relative to each other l that the shaft of the motor runs vertically to the stroke direction of the pump. In these forms of construction a special complete casing is neces*- sary both for the motor-and the pump, which is not always advantageous with regard to weight and ease in handling of the implement.
According to the present invention the pump and the motor are assembled with their longitudinal sides bearing against each other.`
. This advantageous use of space is accompanied bya considerable lessening of the weight and more handy construction of the implement.
One example of construction of the invention is shown diagrammatically in the accompanying drawing in which:
Figure 1 shows an axial section through the implement.
Figure 2 is an elevation of the implement seen against the direction of spraying.
'I'he casing I encloses both the motor and the pump of the spraying implement andis provided on the lower side with a handle 2. At the end opposite `the spraying nozzle, the casing I is sealed by an elliptical cover 3.
On the spraying nozzle side, there is provided a cover t only for the motor part. In this cover 4 and an intermediate wall 5 inserted into the casing I is mounted the motor shaft li, on which are secured the rotor 1 and a fan 29. 'I'he stator is shown by 8.
'I'he end of the motor shaft projecting through the intermediate wall 5 is constructed as a 'pinion 9 which meshes with a gear wheel III mounted in the intermediate wall 5 and the cover 3. On this toothed wheel is provided at the same time A4&5 an inclined annular track Illa, in which a spherithe pump.' In'this casing a' pump rain 'y-.piston I2 is guided so as to be' axially displaceable'and rotatable. It is pressed into the annular groove Illb of the toothed wheel III by a l'spring' l2 through a collar I2a and a'ball Il lodgedin-its hollow end. On the rotation of the gear wheel, the piston I2 performs a to-and-fro movement.
The piston I2 is provided with a control head I2b. The recesses on this control head I2b cooperate with the inlet opening Ma of a supply 6 chamber I4 for a lubricating auxiliary liquid insuch a manner that according to the extent of the turning of the piston I2 dierent amount of liquid is delivered per stroke. For setting the various turning positions the pis-ton I2 can be l0 turned from Ia'hand rocking grip 2l (only in Fig. 1) via a rod not shown. The lubricating liquid supply chamber I4 is tightly closed by a closing screw I5.
From a reservoir I1, the material to be sprayed 15 flows through an inlet opening I8 towards the pressure cylinder 30. An auxiliary piston .is guided in this cylinder so as to be freely rotatable. It is guided back into its original position after each pressure stroke by a return spring I6. 20
The auxiliary piston 3| is moved to and fro by means of the auxiliary fluid in' rhythm with the movements of the piston I2, and inso doing presses the material to be sprayed into the middle bore 20h of a nozzle needle 20 via a non-re- 26 turn valve I9. This nozzle needle is pressed with its front surface against the outlet of the pump with the aid of a cap nut 2|, which is screwed into the front surface of the casing portion Ia, and by means of a flange 20a. The nozzle mem- 80 ber 22 is longitudinally displaceable on the needle 20. By the spring 23, which is tensioned with the aid of a cover screwl 24 it is pressed withits outlet opening against the tip of the needle, in conjunction with which it forms the nozzle valve. 86 In front of the nozzle outlet there is further fixed a front plate 26 with the aid of a cap nut 25.
From the handle of the implement there projects the operating lever 28 of an electric switch 40 lodged in the interior of the hand grip for switching the electromotor on and oi in such a manner that it lies in the range of the fingers of the hand which operates the grip.
I declare that what I claim is:
1. In a portable hand operated liquid spraying device comprising a. nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being inl alignment with the axis of said pump, a driving motor drivablyconnected to said pump, saidmotor being arranged with its axis parallel to' the stroke axis of said pump and side by side therewith, and a handle arranged substantially trausverselyof the axes of said motor and pump.
2. In a portable hand operated liquid spraying nozzle being in alignment with the axis of said pump, a driving motor drivably connected to said pump, a casing for said pump, a casing for said motor, said casings being combined to form one common casing, said motor being arranged with its axis parallel to the stroke axis of said pump and side by side therewith, and a handle secured to said common casing and arranged substantially transversely of the axes of said motor and pump.
3. In a portable hand operated liquid spraying device comprising a nozzle and a. piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis of said pump, a driving motor for said pump, said motor being arranged with its axis parallel to the stroke axis of said pump and side by side therewith, and a gear between said motor and said pump arranged at the end of the motor and of the pump opposite to said nozzle, and a handle arranged substantially transversely of the axes of said motor and pump.
4. In a portable h and operated liquid spraying device comprising a nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis of said pump, a driving motor for said pump, said motor beingA arranged with its axis parallel to the stroke axis of said pump and side by side therewith, a gear between said motor and said pump, a common casing for said pump, said motor and said gear, and a handle secured to said common casing and arranged vsubstantially transversely of the axes of said motor and pump. y
5. In a portable hand operated liquid spraying device comprising a nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis o f said pump, a driving motor for said pump, said motor being arranged with its axis parallel to the stroke aids of said pump and side by side therewith, a gear between said motor and said pump,
` a. frontal cam disc driven by said gear, said pump including a pump piston, and a spring resiliently pressing said piston against said cam disc, and a handle arranged substantially transversely of the axes of said motor and pump.
6. In a portable hand operated liquid spraying device comprising a nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis of said pump, a driving motor for said pump, said motor being arranged with its axis parallel 'to the stroke axis of said pump and side by side therewith, a. gear between said motor and said pump, a frontal cam disc driven by said gear, said pump including a piston, a spring resiliently pressing said piston against said cam. disc, and a. rolling member in one end of said piston and bearing against said cam, and a handle arranged substantially transversely of the axes of said motor and pump.
7. In a portable hand operated liquid spraying device comprising a nozzle and a piston pump for ejecting liquid through said nozzle, said nozzle being in alignment with the axis of said pump, a driving motor for said pump, said motor being arranged with its axis parallel to the stroke axis of said pump an'd side by side therewith, a gear between said motor and said pump, a frontal cam disc driven by said gear and having a groove therein, said pump including a piston, a spring pressing said piston against cam, and a rolling member in one end of said piston and bearing against said cam in said groove and a handle arranged substantially transversely of the axes of said motor and pump.
ERICH im Tr. w
US185960A 1937-01-25 1938-01-20 Hand spraying implement Expired - Lifetime US2195929A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE494134X 1937-01-25

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US2195929A true US2195929A (en) 1940-04-02

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US185960A Expired - Lifetime US2195929A (en) 1937-01-25 1938-01-20 Hand spraying implement

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US (1) US2195929A (en)
BE (1) BE425501A (en)
CH (1) CH200756A (en)
FR (1) FR832591A (en)
GB (1) GB494134A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494837A (en) * 1948-02-26 1950-01-17 Burgess Battery Co Sprayer or atomizer
US2540357A (en) * 1946-03-18 1951-02-06 Stanley William Spray gun
US2654636A (en) * 1949-08-17 1953-10-06 Champion Implements Corp Motor operated spray device
US4171072A (en) * 1978-02-08 1979-10-16 Geo B. Davis, Jr. Hand held electric caulking gun
US4616783A (en) * 1984-08-13 1986-10-14 Weber James R Constant flow rotary spraying device
DE8713954U1 (en) * 1987-10-17 1987-12-03 Carl Platz Hochdrucktechnik GmbH, 6710 Frankenthal High pressure cleaning device
EP2865449A1 (en) * 2008-10-22 2015-04-29 Graco Minnesota Inc. Portable airless sprayer
US9545643B2 (en) 2008-10-22 2017-01-17 Graco Minnesota Inc. Portable airless sprayer
US10926275B1 (en) 2020-06-25 2021-02-23 Graco Minnesota Inc. Electrostatic handheld sprayer
US10968903B1 (en) 2020-06-04 2021-04-06 Graco Minnesota Inc. Handheld sanitary fluid sprayer having resilient polymer pump cylinder
US11007545B2 (en) 2017-01-15 2021-05-18 Graco Minnesota Inc. Handheld airless paint sprayer repair
US11707753B2 (en) 2019-05-31 2023-07-25 Graco Minnesota Inc. Handheld fluid sprayer
US11986850B2 (en) 2018-04-10 2024-05-21 Graco Minnesota Inc. Handheld airless sprayer for paints and other coatings

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163360A (en) * 1962-12-26 1964-12-29 Vilbiss Co Airless spray gun utilizing low pressure coating material source
US6168093B1 (en) 1998-12-30 2001-01-02 Homax Products, Inc. Airless system for spraying coating material
US7500621B2 (en) 2003-04-10 2009-03-10 Homax Products, Inc. Systems and methods for securing aerosol systems
US7677420B1 (en) 2004-07-02 2010-03-16 Homax Products, Inc. Aerosol spray texture apparatus for a particulate containing material
US7487893B1 (en) 2004-10-08 2009-02-10 Homax Products, Inc. Aerosol systems and methods for dispensing texture material
US9248457B2 (en) 2011-07-29 2016-02-02 Homax Products, Inc. Systems and methods for dispensing texture material using dual flow adjustment
US9156042B2 (en) 2011-07-29 2015-10-13 Homax Products, Inc. Systems and methods for dispensing texture material using dual flow adjustment
USD787326S1 (en) 2014-12-09 2017-05-23 Ppg Architectural Finishes, Inc. Cap with actuator

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540357A (en) * 1946-03-18 1951-02-06 Stanley William Spray gun
US2494837A (en) * 1948-02-26 1950-01-17 Burgess Battery Co Sprayer or atomizer
US2654636A (en) * 1949-08-17 1953-10-06 Champion Implements Corp Motor operated spray device
US4171072A (en) * 1978-02-08 1979-10-16 Geo B. Davis, Jr. Hand held electric caulking gun
US4616783A (en) * 1984-08-13 1986-10-14 Weber James R Constant flow rotary spraying device
DE8713954U1 (en) * 1987-10-17 1987-12-03 Carl Platz Hochdrucktechnik GmbH, 6710 Frankenthal High pressure cleaning device
EP0312862A2 (en) * 1987-10-17 1989-04-26 Vdb-Patent Ag High pressure cleaning device
EP0312862A3 (en) * 1987-10-17 1990-05-16 Vdb-Patent Ag High pressure cleaning device
US9604235B2 (en) 2008-10-22 2017-03-28 Graco Minnesota Inc. Portable airless sprayer
US11446690B2 (en) 2008-10-22 2022-09-20 Graco Minnesota Inc. Portable airless sprayer
EP2865451A1 (en) * 2008-10-22 2015-04-29 Graco Minnesota Inc. Portable airless sprayer
US9517479B2 (en) 2008-10-22 2016-12-13 Graco Minnesota Inc. Portable airless sprayer
US9545643B2 (en) 2008-10-22 2017-01-17 Graco Minnesota Inc. Portable airless sprayer
US9604234B2 (en) 2008-10-22 2017-03-28 Graco Minnesota Inc. Portable airless sprayer
EP2865449A1 (en) * 2008-10-22 2015-04-29 Graco Minnesota Inc. Portable airless sprayer
US9914141B2 (en) 2008-10-22 2018-03-13 Graco Minnesota, Inc. Portable airless sprayer
US10919060B2 (en) 2008-10-22 2021-02-16 Graco Minnesota Inc. Portable airless sprayer
US11779945B2 (en) 2008-10-22 2023-10-10 Graco Minnesota Inc. Portable airless sprayer
US11759808B1 (en) 2008-10-22 2023-09-19 Graco Minnesota Inc. Portable airless sprayer
US11623234B2 (en) 2008-10-22 2023-04-11 Graco Minnesota Inc. Portable airless sprayer
US11446689B2 (en) 2008-10-22 2022-09-20 Graco Minnesota Inc. Portable airless sprayer
EP2865450A1 (en) * 2008-10-22 2015-04-29 Graco Minnesota Inc. Portable airless sprayer
US11007545B2 (en) 2017-01-15 2021-05-18 Graco Minnesota Inc. Handheld airless paint sprayer repair
US11986850B2 (en) 2018-04-10 2024-05-21 Graco Minnesota Inc. Handheld airless sprayer for paints and other coatings
US11707753B2 (en) 2019-05-31 2023-07-25 Graco Minnesota Inc. Handheld fluid sprayer
US10968903B1 (en) 2020-06-04 2021-04-06 Graco Minnesota Inc. Handheld sanitary fluid sprayer having resilient polymer pump cylinder
US11738358B2 (en) 2020-06-25 2023-08-29 Graco Minnesota Inc. Electrostatic handheld sprayer
US10926275B1 (en) 2020-06-25 2021-02-23 Graco Minnesota Inc. Electrostatic handheld sprayer

Also Published As

Publication number Publication date
FR832591A (en) 1938-09-29
CH200756A (en) 1938-10-31
GB494134A (en) 1938-10-20
BE425501A (en) 1938-01-31

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