GB2339453A - Extrusion device - Google Patents

Extrusion device Download PDF

Info

Publication number
GB2339453A
GB2339453A GB9814987A GB9814987A GB2339453A GB 2339453 A GB2339453 A GB 2339453A GB 9814987 A GB9814987 A GB 9814987A GB 9814987 A GB9814987 A GB 9814987A GB 2339453 A GB2339453 A GB 2339453A
Authority
GB
United Kingdom
Prior art keywords
cartridge
housing
body member
drive shaft
spindle
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.)
Withdrawn
Application number
GB9814987A
Other versions
GB9814987D0 (en
Inventor
Denis Robert Hill
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9814987A priority Critical patent/GB2339453A/en
Publication of GB9814987D0 publication Critical patent/GB9814987D0/en
Publication of GB2339453A publication Critical patent/GB2339453A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B05C17/0116—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like characterised by the piston driving means
    • B05C17/0133—Nut and bolt advancing mechanism, e.g. threaded piston rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B05C17/0103—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like with electrically actuated piston or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)

Description

2339453 EXTRUSION DEVICE This invention relates to an extr usion device.
In particular it is concerned with utilising a existing form of disposable cartridge.
Such cartridges are used for a wide range of building and do-it-yourself products. The cartridge is equipped with a nozzle whose end is cut off and the cartridge is placed in a skeletal carrier equipped with a displaceable piston which can be displaced along the frame by way of a trigger. The piston is inserted into the cartridge at the opposite end to the nozzle and by pointing the nozzle at a location which is to receive the contents of the cartridge the trigger is then manually displaced to cause the piston to drive the contents of the cartridge out by way of the nozzle.
This manually operated extrusion device is readily used for both amateur and professional users. However as with many manually operated devices if used for an extended period it can give rise to manual or other discomfort.
According to the present invention there is provided an extrusion device comprising: a body member; a cartridge holder for demountable connection to the body member; a crown and pinion gear assembly rotatably mounted on the body member by way of a housing; a drive shaft with a longitudinal axis; the drive shaft extending through a threaded boss co-axial with the drive shaft, the boss being coupled to the crown gear; the pinion gear being attached to a spindle extending outwith the housing; the spindle having at a location outside the housing a section adapted for coupling to an electrically powered motor.
Typically the section of the spindle is adapted for coupling to an electrically powered motor of a drill (battery or mains powered).
2 In a first preferred version of the present invention the drill is caused to engage with the housing, or an extension thereof, by a framing means to hold the drill in a fixed engagement with the housing or the extension thereof.
By making use of a readily available powered drill the presently proposed extrusion device enables extrusion An exemplary embodiment of the invention will now be described with reference to the accompanying drawing of which the sole figure is an exploded perspective view of a extruding device.
Device 11 comprises a frame 12 in which a disposable cartridge 13 with a nozzle N is located is readily inserted into (or removed from) the frame 12 by way of aperture 14 in a base annulus 15 forming an end of the frame 12. The annulus 15 contains a pair of keyhole slots 16, 17 which enable the frame 12 to be readily secured to or removed from pins 18,19 on body member 20.
The body member 20 serves as a closure for housing 21 which includes a crown wheel 22 meshing with a pinion 23. The crown wheel 22 includes an integral boss 24 having a bore 25 with a thread complementing thread 26 in drive shaft 27. The shaft 27 has a longitudinal axis A and at ends 27A, 27B of, respectively, pistons P1, P2.
The shaft 27 extends through a bearing (not shown) on the reverse side of housing 21 to that visible in the drawing so that the crown wheel 22, boss 24 and shaft 27 can rotate separately from the housing 21.
The housing 21 includes a boss 28 through which extends a rotatable spindle 29. The spindle 29 has secured on its inner end pinion 23 and has its outer end in the form of a stem 29A with a hexagonal cross section. This cross section complements that of a nut forming the output end drive of a powered screw driver or drill. In the present case the unit is powered by way of a battery powered drill which can be used to rotate the spindle 29 in either direction of rotation.
3 To make use of the device 11 the frame 12 is removed from the assembled device and a cartridge 13 is placed in the frame 12 as shown in the drawing. The nozzle N is then opened. The drive shaft 27 is then driven by hand or by spindle 29 in a sense to cause piston P1 to be drawn back into the vicinity of body member 20. The frame 12 with its cartridge 13 in place is then presented to the body member 20 so that piston P1 enters the opposite end of the cartridge 13 to that incorporating the nozzle N. The frame 12 is then engaged with the rest of the device 11 by way of keyhole slots 16, 17 coupled to, respectively, pins 18, 19.
The spindle 29 is then engaged with an output shaft of a battery powered drill. The nozzle N is then presented to the location where the contents of the cartridge 13 is to be extruded and the battery powered drill operated in a sense to cause the piston P1 with cartridge 13 to be driven towards the nozzle end of the cartridge 13 so as to displace the contents of the cartridge 13 through the nozzle N. Once sufficient material has been extruded the drill is switched off to terminate any further extrusion of material. If required the drill can be driven for a short period in the reverse direction so that the piston Pl is drawn away from the nozzle end of the cartridge so as to cause the positive withdrawal of material in the cartridge from the vicinity of the nozzle N.
The device 11 is shown with a piston P2 at the opposite end of the shaft 27 to piston P1. This enable the device 11 to be used in a double ended way. A second frame and cartridge similar in form and function to frame 12 and cartridge 13 can be mounted on the opposite side of the housing 20 as the cartridge 13 is emptied and piston P1 reaches its furthest limit of travel from body member 20. The device 11 can then be reversed and the contents of the new cartridge extruded with little delay.
4

Claims (4)

1 An extrusion device comprising:
a body member; a cartridge holder for demountable connection to the body member, the holder being adapted to receive a cartridge of material for extrusion and to align a longitudinal axis of the cartridge with a longitudinal axis of the body member; a crown and pinion gear assembly rotatably mounted on the body member by way of a housing; a drive shaft having an end adapted for contacting a piston located in a cartridge located by means of the cartridge holder; the drive shaft extending C through a threaded boss co-axial with the drive shaft, the boss being coupled to the crown gear; the drive shaft being adapted for displacement by way of the boss along the longitudinal axis of the body member; the pinion gear being attached to a spindle extending outwith the housing; the spindle having at a location outside the housing a section adapted for coupling to an electrically powered motor.
2 An extrusion device as claimed in Claim I wherein the section of the spindle is adapted for coupling to a electrical mains or battery powered motor of a portable device such as a drill or screwdriver.
3 An extrusion device as claimed in any preceding claim wherein the portable device is caused to engage with the housing, or an extension thereof, by a framing means to hold the device in a fixed relationship with the housing or the extension thereof.
4 An extrusion device as hereinbefore described with reference to, and as illustrated in, the accompanying drawings.
GB9814987A 1998-07-11 1998-07-11 Extrusion device Withdrawn GB2339453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9814987A GB2339453A (en) 1998-07-11 1998-07-11 Extrusion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9814987A GB2339453A (en) 1998-07-11 1998-07-11 Extrusion device

Publications (2)

Publication Number Publication Date
GB9814987D0 GB9814987D0 (en) 1998-09-09
GB2339453A true GB2339453A (en) 2000-01-26

Family

ID=10835292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9814987A Withdrawn GB2339453A (en) 1998-07-11 1998-07-11 Extrusion device

Country Status (1)

Country Link
GB (1) GB2339453A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002055406A2 (en) * 2001-01-12 2002-07-18 Dentsply International Inc. Dispensing syringe
EP1893525A2 (en) * 2005-06-24 2008-03-05 Cepia, LLC Dispensing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635378A (en) * 1969-11-24 1972-01-18 Damon Dehart Applicating devices
US4306671A (en) * 1980-03-31 1981-12-22 Fisher Arnold J Portable motor driven dispenser
US5027984A (en) * 1989-09-12 1991-07-02 Vermont American Corporation Caulking gun attachment for use with a high RPM power driver and capable of being driven either directly at full speed or indirectly at a lower speed via a gear reducer
US5762239A (en) * 1996-06-14 1998-06-09 Cossette; Andre Hand held scellant applicator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635378A (en) * 1969-11-24 1972-01-18 Damon Dehart Applicating devices
US4306671A (en) * 1980-03-31 1981-12-22 Fisher Arnold J Portable motor driven dispenser
US5027984A (en) * 1989-09-12 1991-07-02 Vermont American Corporation Caulking gun attachment for use with a high RPM power driver and capable of being driven either directly at full speed or indirectly at a lower speed via a gear reducer
US5762239A (en) * 1996-06-14 1998-06-09 Cossette; Andre Hand held scellant applicator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002055406A2 (en) * 2001-01-12 2002-07-18 Dentsply International Inc. Dispensing syringe
WO2002055406A3 (en) * 2001-01-12 2003-01-23 Dentsply Int Inc Dispensing syringe
US6571992B2 (en) 2001-01-12 2003-06-03 Dentsply Research & Development Corp. Dispensing syringe
EP1893525A2 (en) * 2005-06-24 2008-03-05 Cepia, LLC Dispensing device
EP1893525A4 (en) * 2005-06-24 2008-09-17 Cepia Llc Dispensing device

Also Published As

Publication number Publication date
GB9814987D0 (en) 1998-09-09

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)