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WO1999058251A1 - Atomiseur rotatif biconique - Google Patents

Atomiseur rotatif biconique Download PDF

Info

Publication number
WO1999058251A1
WO1999058251A1 PCT/US1999/009918 US9909918W WO9958251A1 WO 1999058251 A1 WO1999058251 A1 WO 1999058251A1 US 9909918 W US9909918 W US 9909918W WO 9958251 A1 WO9958251 A1 WO 9958251A1
Authority
WO
WIPO (PCT)
Prior art keywords
dispenser
angled surface
shaft
dispensing tip
opposing
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.)
Ceased
Application number
PCT/US1999/009918
Other languages
English (en)
Inventor
Peter Dudanowicz
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.)
Henkel Loctite Corp
Original Assignee
Henkel Loctite Corp
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 Henkel Loctite Corp filed Critical Henkel Loctite Corp
Priority to AU38858/99A priority Critical patent/AU3885899A/en
Publication of WO1999058251A1 publication Critical patent/WO1999058251A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member characterised by the rotating member
    • B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member characterised by the rotating member with a spraying edge, e.g. like a cup or a bell

Definitions

  • This invention relates to a double angle rotospray dispenser for dispensing a highly viscous material, such as an adhesive.
  • a highly viscous material such as an adhesive
  • most automobile engines are designed with freeze plugs which, in the event water freezes in the engine block, prevent the engine block from cracking by popping out from the engine block when the frozen water expands.
  • the freeze plugs are provided in the engine block by drilling a small hole/bore into the block and inserting a plug member therein.
  • a ring or band of adhesive is dispensed into the hole prior to insertion of the plug. It is imperative, however, that the adhesive be dispensed into the bore in a clean, precise fashion.
  • a problem associated with the use of these types of rotary dispensing tips is that the highly viscous product being dispensed has a tendency of accumulating on the underside of the tip and dispersing randomly within the bore.
  • Another disadvantage relates to a phenomenon known as "bridging" whereby the viscous product is dispensed onto the inner wall of the bore and does not release off the dispenser tip resulting in uneven application of product. Accordingly, it would be desirable to provide a dispensing tip which does not present these known problems -3- during application of the product.
  • the present invention is directed to a double angle rotospray dispenser.
  • the dispenser includes a rotatable shaft having a dispensing tip connected to a free end of the shaft.
  • the dispensing tip includes a first angled surface extending outwardly from the shaft, a second opposing angled surface disposed onto the first angled surface and extending inwardly toward the shaft, and a terminal surface located at a bottom end of the dispensing tip, adjacent to the second opposing angle surface.
  • the present invention is also directed to a process for dispensing a viscous product onto an interior wall of a bore.
  • the process includes: (a) providing a double angle rotospray dispenser in accordance with the present invention, (b) inserting the dispenser into the bore, rotating the dispenser at a predetermined velocity, and (c) depositing the viscous product onto a first angled surface of the dispenser and dispensing the product onto the interior wall of the bore in the form of a thin band.
  • FIG. 1 depicts an elevational view of a known flat-bottom rotary dispensing tip.
  • FIG. 2 depicts a double angle rotospray dispenser of the present invention in an elevational cross-sectional view.
  • FIG. 3 depicts in a cross-sectional view the dispenser of FIG. 2 disposed within a bore, onto the interior wall of which product may be dispensed.
  • the dispenser 10 includes a rotatable shaft 12, which may be hollow or solid, having a dispensing tip 14 located at one end of the rotatable shaft 12. Located at the other end of the rotatable shaft 12 is a drive (not shown) .
  • the dispensing tip 14 is comprised of a first angled surface 16 extending outwardly from a central longitudinal axis of rotation 15 of the shaft 12.
  • the first angled surface 16 is arranged relative to shaft 12 such that a straight line 18 representing a plane of the first angled surface 16 forms an angle ⁇ with central axis 15.
  • Angle ⁇ may range from about 10° to about 40°, such as about 30°. -5-
  • a second opposing angled surface 20 disposed onto the first angled surface 16 is provided, where the second opposing angled surface 18 extends inwardly towards the shaft 12. Together, the first and second angled surfaces form a conical surface.
  • the second angled surface 20 is arranged relative to shaft 12 such that a straight line 22 representing a plane of the second opposing angled surface 20 forms an angle ⁇ ' with central axis 15.
  • Angle ⁇ ' may also range from about 10° to about 40°, such as about 30°. According to one embodiment of the present invention (see FIG.
  • a planar surface 24 substantially parallel to the shaft 12 is interposed between the first angled surface 16 and the second opposing angled surface 18 in order to separate the two angled surfaces.
  • the distance from the first angled surface to the second opposing angled surface, as measured transversely to the central axis 15, can range from about 0.005 inches to about 0.05 inches.
  • the dispensing tip 14 has a terminal surface 26 located at one end of the dispensing tip 14.
  • the terminal surface 26 can be made to have any desired configuration. However, in order to facilitate maximum range of product dispensation within a bore 30, it is desirable for the terminal surface 26 to be either convex or planar so that the dispensing tip 14 can be inserted toward the bottom of the bore 30.
  • Product dispensing means 11 well known in the -6- art, is provided to deposit product onto the first angled surface for dispensing onto an interior wall 28 of bore 30.
  • the ro t atable shaft 12 is connected at one end to rotating or spinning means (not shown), an example of which is a drive, commonly known in the industry.
  • the rotatable shaft 12 is rotated/spun by the drive, thereby causing product to be dispensed from that first surface onto an interior wall 28 of the bore 30 by way of centrifugal force.
  • the dispenser 10 can be made of any rigid material such as, for example, stainless steel, aluminum, or a thermoplastic material. In operation, the dispenser 10 is inserted into a bore 30 and suspended therein with its central axis 15 being coincident with a longitudinal axis of the bore 30.
  • a product to be dispensed inside the bore such as a highly viscous adhesive material, is deposited onto the first conical surface 16 of the dispensing tip 14.
  • the shaft 12 is then rotated at a predetermined velocity causing product -7- to be dispensed onto the interior wall 28 of the bore 30 by way of centrifugal force.
  • the product will be dispensed onto the interior wall 28 in the form of a band.
  • the band width of dispensed product can be varied by either traversing the bore 30 during a single application of product or by making several discreet applications in different axial locations within the bore 30.
  • a double angle rotospray dispenser in accordance with the present invention is provided.
  • the dispenser is inserted within the bore and then caused to rotate at a predetermined viscosity.
  • Product is then dispensed onto the dispensing tip of the dispenser and then applied onto an interior wall of a bore, in the form of a band, by way of centrifugal force .
  • the present invention provides an easily manufactured and superior performing dispenser. It is understood that the invention is not limited to the particular embodiment disclosed, but is intended to include modifications thereto.

Landscapes

  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Atomiseur rotatif biconique (10), comprenant un arbre rotatif (12) et une pointe distributrice (14), reliée à l'extrémité libre de l'arbre rotatif (12). La pointe distributrice (14) comprend une première surface oblique (16) dirigée vers l'extérieur depuis l'axe (15) de l'arbre ; une seconde surface oblique (20) opposée, reliée à la première surface (16) et dirigée vers l'intérieur en direction de l'axe (15) de l'arbre ; et une surface terminale (26), située à l'extrémité inférieure de la pointe distributrice (14) et adjacente à la seconde surface oblique (20).
PCT/US1999/009918 1998-05-08 1999-05-07 Atomiseur rotatif biconique Ceased WO1999058251A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU38858/99A AU3885899A (en) 1998-05-08 1999-05-07 Double angle rotospray dispenser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8487498P 1998-05-08 1998-05-08
US60/084,874 1998-05-08

Publications (1)

Publication Number Publication Date
WO1999058251A1 true WO1999058251A1 (fr) 1999-11-18

Family

ID=22187758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/009918 Ceased WO1999058251A1 (fr) 1998-05-08 1999-05-07 Atomiseur rotatif biconique

Country Status (2)

Country Link
AU (1) AU3885899A (fr)
WO (1) WO1999058251A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621966A (en) * 1949-02-16 1952-12-16 Jehlicka Josef Atomizing device
US2901177A (en) * 1956-08-30 1959-08-25 Edward O Norris Spraying apparatus
US3233655A (en) * 1964-05-07 1966-02-08 Stratford Eng Corp Liquid atomization apparatus
US3468614A (en) * 1966-03-15 1969-09-23 Goran Alfred Nilsson Method and apparatus for bringing gases,liquids and/or pulverized solid bodies into intimate contact with each other
US3478962A (en) * 1966-10-04 1969-11-18 Bosch Hausgeraete Gmbh Electrostatic painting apparatus
US3850373A (en) * 1972-07-12 1974-11-26 Grolitsch Erhard Atomizing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621966A (en) * 1949-02-16 1952-12-16 Jehlicka Josef Atomizing device
US2901177A (en) * 1956-08-30 1959-08-25 Edward O Norris Spraying apparatus
US3233655A (en) * 1964-05-07 1966-02-08 Stratford Eng Corp Liquid atomization apparatus
US3468614A (en) * 1966-03-15 1969-09-23 Goran Alfred Nilsson Method and apparatus for bringing gases,liquids and/or pulverized solid bodies into intimate contact with each other
US3478962A (en) * 1966-10-04 1969-11-18 Bosch Hausgeraete Gmbh Electrostatic painting apparatus
US3850373A (en) * 1972-07-12 1974-11-26 Grolitsch Erhard Atomizing device

Also Published As

Publication number Publication date
AU3885899A (en) 1999-11-29

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