US2013640A - Method for applying coating liquids such as paints, varnishes, or the like - Google Patents

Method for applying coating liquids such as paints, varnishes, or the like Download PDF

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Publication number
US2013640A
US2013640A US2294A US229435A US2013640A US 2013640 A US2013640 A US 2013640A US 2294 A US2294 A US 2294A US 229435 A US229435 A US 229435A US 2013640 A US2013640 A US 2013640A
Authority
US
United States
Prior art keywords
piston
paints
paint
pressure
varnishes
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
US2294A
Other languages
English (en)
Inventor
Steinhart Hermann
Kratz Franz
Baumgratz Ernst
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.)
Robert Bosch AG
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of US2013640A publication Critical patent/US2013640A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 is based on the recognition of the fact that it is necessary to employ very high pressures e. g. of more than 100 atmospheres and to create such pressures by applying to the coating liquid a series of intermittent pressure impulses in rapid succession.
  • the invention has as starting point the deliberation that ⁇ the want of success of spraying paints under pressure owes to the lack of asuficient pressure and ejecting rate respectively to the paint. All attempts to improve the atomizing by a new nozzle construction had to fail on accountof the lack of suicient pressure which was4 lmited by the practicability of the container .walls and conducting tubes. All known constructions of these parts will not allow such a modification,- as to resist to such high pressures as were found to be .indispensably' necessary. An entirely new way was to be gone.
  • the new method of spraying paints may be performed in the most eicient way by piston pumps of that sort which is known for fuel injecn tion.
  • Our invention therefore relates to a new coating method rather than a method of spraying liquids in general.
  • Figure 1 is an elevation of an appliance using a. piston pump, partly in section.
  • Figure 2 is a planview thereof.. v
  • FIGS 3-5 show details of the pump piston.
  • a small elecp tric motor 2 is contained, the shaft 3 of which terminates in a pinion 4, which gears with a toothed wheel 5.
  • a .pin 6 on which the head 'I of a connecting rod 8 ⁇ is revolubly mounted.
  • connecting rod 8 at its other -en'd has a ball-joint I2' which, driven by the connecting rod, performs a reciprocating movement.
  • I3 is a very little *Y compression chamber situated in front of the piston.
  • Fig. 3 shows a section through the piston on the line ,A-A of Fig. 3
  • Fig. 5 is adevelopment of the piston periphery.
  • the recessed part I4 communicates with the compression chamber I3 through a slot I 5.
  • r lli and I6' are On the upward stroke of the piston, the chaml ber I3 is illed through the openings I6, I6' with 9.
  • the ball head of this joint is connected by a" nut III with the rear end II of a' piston rod I2.
  • a piston' f 4o Il is a chamber recessed out on the periphery I the paint to be sprayed.
  • the piston again moves forward it closes the openings I6 and I6'. As soon as these openings are closed the pressure on the liquid begins.
  • the spring 20 opposes thev pressure on the valve 22 seated in the bottom of the cylinder.
  • the spring 20 is relatively weak. It has no importance for the spraying operation; it acts only as a pressure spring for. the non-return valve 22 which is adapted to prevent the paint being again sucked back from the ante-chamber of the nozzle on the backward movement of the piston.
  • the substantial force which opposes the pressure of the paint is the force of the spring 2I.
  • This spring is extremely strong. It bears at one side against the wall 23 0f a spraying nozzle situated below the cylinder, and on the other side against a stop 24; which is secured at the upper end of the nozzle needle'25. As soon as the pressure of the paint overcomes.
  • the valve head 26 of .the nozzle needle is raised from its seat, and the paint standing under the extremely high pressure is dischargedthrough .the small opening which opens into the atmosphere and at the same time is atomized into the finest particles.
  • a toothed rack-bar 28 is employed, which engages inthe toothed ring 29 of a sleeve 3l surrounding the upper lend of thecylinder.
  • a iiywheel 32 On the shaft 3 of the motor 2 is also mounted a iiywheel 32 which tends to relieve the motor from-the extreme variations in load as the piston I2 reciprocates in opposite directions and to ensure smooth running thereof.
  • the paint' container I9 is not built on the hand appliance, but arranged at another suitable place and connected by a flexible pipe with the' paint supply chamber I1.
  • the appliance described is made in the form of a pistol, the motor being arranged inthe handle afnd theA pump in the barrel of the pistol.

Landscapes

  • Nozzles (AREA)
US2294A 1932-04-07 1935-01-17 Method for applying coating liquids such as paints, varnishes, or the like Expired - Lifetime US2013640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB155173D DE607001C (de) 1932-04-07 1932-04-07 Verfahren und Vorrichtung zur Zerstaeubung von Farben, Lacken o. dgl.

Publications (1)

Publication Number Publication Date
US2013640A true US2013640A (en) 1935-09-03

Family

ID=32474780

Family Applications (1)

Application Number Title Priority Date Filing Date
US2294A Expired - Lifetime US2013640A (en) 1932-04-07 1935-01-17 Method for applying coating liquids such as paints, varnishes, or the like

Country Status (7)

Country Link
US (1) US2013640A (enrdf_load_stackoverflow)
BE (1) BE404422A (enrdf_load_stackoverflow)
CH (1) CH177678A (enrdf_load_stackoverflow)
DE (1) DE607001C (enrdf_load_stackoverflow)
FR (1) FR777467A (enrdf_load_stackoverflow)
GB (1) GB419141A (enrdf_load_stackoverflow)
NL (1) NL39412C (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070064A (en) * 1958-10-29 1962-12-25 Glenn Chemical Company Inc Apparatus for spraying liquid material on articles
US4450615A (en) * 1982-06-07 1984-05-29 Pickios Anthony G Method of fabricating a hand calculator
CN103862556A (zh) * 2012-12-10 2014-06-18 信宜市朝健陶瓷有限公司 一种沉孔成型模具
CN110976122A (zh) * 2020-01-02 2020-04-10 三门宣教机械设备有限公司 一种单人手持可以直接调换喷漆色彩的喷涂手枪
CN112742649A (zh) * 2021-01-26 2021-05-04 黄冈职业技术学院 一种工业设计产品用修补处理装置
CN118371370A (zh) * 2024-06-27 2024-07-23 德州欧文斯新型建材有限责任公司 一种防止喷头堵塞的金属彩石瓦喷漆设备

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740881C (de) * 1939-07-23 1943-10-29 Schnellpressenfabrik A G Heide Vorrichtung zum Zerstaeuben einer das Abschmutzen frisch bedruckter Bogen verhindernden Fluessigkeit mittels einer Spritzduese ohne Verwendung von Druckluft
DE741914C (de) * 1941-03-22 1944-11-18 Siemens Ag Einrichtung zur Daempfung von Eigenschwingungen eines Siebkreises auf der Gleichstromseite eines Gleichrichters
DE1272783B (de) * 1955-02-04 1968-07-11 Ransburg Electro Coating Corp Vorrichtung zum elektrostatischen UEberziehen eines Gegenstandes
EP0474635A4 (en) * 1989-03-09 1992-03-25 Grant, Michael John Plant spraying apparatus and method
CN109092586A (zh) * 2018-08-30 2018-12-28 余富斌 一种地质灾害后的防疫越野喷药设备
CN109629805B (zh) * 2018-11-26 2024-04-12 广东机电职业技术学院 一种室内装修用涂料刷墙装置
CN120250889A (zh) * 2025-06-05 2025-07-04 山东华宇工学院 一种可调节的室内设计用墙壁喷涂机

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070064A (en) * 1958-10-29 1962-12-25 Glenn Chemical Company Inc Apparatus for spraying liquid material on articles
US4450615A (en) * 1982-06-07 1984-05-29 Pickios Anthony G Method of fabricating a hand calculator
CN103862556A (zh) * 2012-12-10 2014-06-18 信宜市朝健陶瓷有限公司 一种沉孔成型模具
CN110976122A (zh) * 2020-01-02 2020-04-10 三门宣教机械设备有限公司 一种单人手持可以直接调换喷漆色彩的喷涂手枪
CN112742649A (zh) * 2021-01-26 2021-05-04 黄冈职业技术学院 一种工业设计产品用修补处理装置
CN118371370A (zh) * 2024-06-27 2024-07-23 德州欧文斯新型建材有限责任公司 一种防止喷头堵塞的金属彩石瓦喷漆设备

Also Published As

Publication number Publication date
BE404422A (enrdf_load_stackoverflow) 1934-08-31
CH177678A (de) 1935-06-15
GB419141A (en) 1934-11-07
FR777467A (fr) 1935-02-20
DE607001C (de) 1935-10-05
NL39412C (enrdf_load_stackoverflow) 1936-11-16

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