GB2576926A - Unblocking device - Google Patents

Unblocking device Download PDF

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Publication number
GB2576926A
GB2576926A GB1814560.7A GB201814560A GB2576926A GB 2576926 A GB2576926 A GB 2576926A GB 201814560 A GB201814560 A GB 201814560A GB 2576926 A GB2576926 A GB 2576926A
Authority
GB
United Kingdom
Prior art keywords
outlet
cartridge
end region
holes
body portion
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Withdrawn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
GB1814560.7A
Other versions
GB201814560D0 (en
Inventor
Lumley Graham
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.)
Knot Bothered Ltd
Original Assignee
Knot Bothered Ltd
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 Knot Bothered Ltd filed Critical Knot Bothered Ltd
Priority to GB1814560.7A priority Critical patent/GB2576926A/en
Publication of GB201814560D0 publication Critical patent/GB201814560D0/en
Publication of GB2576926A publication Critical patent/GB2576926A/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Withdrawn legal-status Critical Current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
    • B05C17/0052—Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B05B15/522—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings
    • B05B15/5223—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings the cleaning element, e.g. a needle, and the discharge opening being movable relative to each other in a direction substantially parallel to the flow of liquid or other fluent material through said opening
    • 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
    • B05C17/0143—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 comprising means for cutting or cleaning the cartridge nozzle tip

Landscapes

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

Abstract

The present application describes a device (100 figure 1a) for unblocking the outlet of a tube cartridge. The device comprises an elongate body portion (102 figure 1a) having at least one inlet 122 located between a first end region (106 figure 1a) and a second end region (110 figure 1a). The at least one outlet 116 is proximal the second end region. There is a bore 114 extending from the least one inlet to the at least one outlet. The inlets may be oriented perpendicularly to the longitudinal axis of the body portion and space along that axis in diametrically opposed pairs. The second end portion may comprise a point 112.

Description

(71) Applicant(s):
Knot Bothered Limited
24-28 St.Leonards Road, WINDSOR, Berkshire, SL4 3BB, United Kingdom (72) Inventor(s):
Graham Lumley (56) Documents Cited:
GB 0377285 A
CH 000261322 A
DE 102007060382 A1
FR 002354254 A
AT 000180894 B
DE 003826887 A1
FR 002500518 A
US 20110091590 A1 (58) Field of Search:
INT CL B05C, B08B, B65D Other: EPODOC, WPI, Internet (74) Agent and/or Address for Service:
Tandem Patents Limited
Grange Farm, Wetherby Road, Little Ribston, Wetherby, Yorkshire, LS22 4EP, United Kingdom (54) Title of the Invention: Unblocking device
Abstract Title: Cartridge unblocking device (57) The present application describes a device (100 figure 1a) for unblocking the outlet of a tube cartridge. The device comprises an elongate body portion (102 figure 1a) having at least one inlet 122 located between a first end region (106 figure 1a) and a second end region (110 figure 1a). The at least one outlet 116 is proximal the second end region. There is a bore 114 extending from the least one inlet to the at least one outlet. The inlets may be oriented perpendicularly to the longitudinal axis of the body portion and space along that axis in diametrically opposed pairs. The second end portion may comprise a point 112.
1/1
104
Fig. 1a
UNBLOCKING DEVICE
The present invention relates to a device for unblocking the outlet of a tube cartridge used in a cartridge gun.
Conventional tube cartridges generally include a cylindrical body containing a compound, such as adhesive, sealant, caulk, or the like. The cartridge typically has a threaded neck region including an outlet at one end for receiving a nozzle, and a moveable base portion at the other end for engagement with a piston member of a cartridge gun in which the cartridge is mounted to force compound from the nozzle when required in use.
Tube cartridges are frequently stored between jobs and the compound in the nozzle and/or around the outlet of the cartridge tends to harden over time which ultimately blocks the nozzle and cartridge outlet and renders the cartridge useless even though useable compound remains therein. The partially used cartridge is therefore discarded and replaced with a new, unused cartridge.
It is an aim of certain embodiments of the present invention to provide a device for efficiently unblocking the outlet of a tube cartridge to thereby extend the working life of each cartridge and to reduce material waste and cost.
According to a first aspect of the present invention there is provided a device for unblocking the outlet of a tube cartridge, comprising:
an elongate body portion having at least one inlet located between a first end region and a second end region, at least one outlet proximal the second end region, and a bore extending from the at least one inlet to the at least one outlet.
Optionally, the at least one inlet comprises a plurality of spaced apart holes each extending into the bore.
Optionally, at least two of the holes are longitudinally spaced apart with respect to a longitudinal axis of the body portion.
Optionally, an axis of a first one of the holes is oriented substantially perpendicularly to an axis of a second one of the holes.
Optionally, the plurality of spaced apart holes comprises at least two pairs of diametrically opposed holes, each pair of diametrically opposed holes being longitudinally spaced from an adjacent pair of diametrically opposed holes.
Optionally, the axes of a first pair of said diametrically opposed holes extend in a first direction and the axes of an adjacent second pair of said diametrically opposed holes extend in a second direction.
Optionally, the first direction is substantially perpendicular to the second direction.
Optionally, the device further comprises a head portion disposed at the second end region of the body portion and extending outwardly therefrom to provide an abutment surface for abutting a neck region of a cartridge when the device is inserted therein in use.
Optionally, the head portion comprises the at least one outlet.
Optionally, the bore defines the at least one outlet.
Optionally, the head portion has a width of around 12mm.
Optionally, the bore and at least one outlet each have a width of at least 5mm.
Optionally, the at least one inlet has a width of at least 5mm.
Optionally, the body portion has a width of around 7mm.
Optionally, the first end region is substantially tapered.
Optionally, the first end region terminates at a point.
Optionally, the device has a substantially circular cross section.
Description of the Drawings
Certain embodiments of the present invention will now be described with reference to the accompanying drawings in which:
Figure 1a illustrates a side view of a device according to certain embodiments of the present invention;
Figure 1 b illustrates a first cross section through the device of Figure 1 a; and
Figure 1c illustrates a second cross section through the device of Figure 1a.
Detailed Description
As illustrated in Figures 1a to 1c, a device 100 according to certain embodiments of the present invention includes an elongate body portion 102 having a head portion 104 at a first end region 106 and a substantially tapered portion 108 at a second end region 110 which terminates at a point 112. The device has a length of around 38mm.
The body portion 102 is substantially cylindrical and includes a central bore 114 which extends through the head portion 104 to provide an outlet region 116 therein. As such, the body portion 102 is substantially hollow. The body portion 102 has an outer diameter of around 7mm and an inner diameter of around 6mm, resulting in a wall thickness of around 0.5mm. The outer diameter allows the device to be inserted into the correspondingly shaped and sized outlet of a conventional tube cartridge. Aptly, the body portion is sized and shaped to engage closely with the cartridge outlet such that a seal is provided therebetween to prevent compound passing between the device and the cartridge.
The head portion 104 is substantially circular in cross section and is coaxially arranged on the body portion 102. The head portion 104 has an outer diameter of around 12mm to extend radially outwards with respect to the body portion 102 and provide a substantially flat under surface 118. The upper surface 120 of the head portion 104 is also substantially flat and includes the outlet region 116 which has a diameter of around 6mm. The head portion 104 has a thickness of around 2mm. The head portion 104 is configured to allow a cartridge nozzle to be screwed on the cartridge and over the head portion when the device is located in the outlet of the cartridge as described further below. The shoulder region of the head portion may also be configured to engage with the base region of a nozzle to thereby prevent the device moving upwardly within the nozzle and also to provide a seal between the device and the cartridge and/or nozzle.
The tapered portion 108 has a length of around 3mm along the longitudinal axis 118 of the device and a taper angle of around 45 degrees. The pointed second end region 110 aids insertion of the device into the cartridge and through hardened compound located at the outlet of the cartridge. The second end region is also not at risk of becoming blocked during insertion in view the second end being closed.
The body portion 102 further includes a plurality of inlet regions 122 in the form of holes located in the side of the body portion and extending into the central bore 114. Each hole is substantially circular and has a diameter of around 5mm. The axis of each hole is oriented substantially perpendicularly to the longitudinal axis 118 of the device. The inlet regions 122 comprise four pairs of diametrically opposed holes, wherein each pair of diametrically opposed holes is longitudinally spaced from an adjacent pair of diametrically opposed holes. The axes of two of the four pairs of diametrically opposed holes extend in a first direction and the axes of the other two pairs extend in a second direction. Aptly, the first direction is substantially perpendicular to the second direction. The pairs of holes are longitudinally staggered in terms of axis direction such that a first pair 124 of diametrically opposed holes disposed proximal the second end region of the body portion extends in the first direction, a second pair 126 of diametrically opposed holes extends in the second direction, a third pair 128 of diametrically opposed holes extends in the first direction, and a fourth pair 130 of diametrically opposed holes extends in the second direction. Adjacent pairs of holes are longitudinally spaced apart by around 10mm.
This arrangement of inlet regions 122 allows at least one hole to reach flowable compound in the cartridge when the device is located in the outlet thereof.
In use, any nozzle already fitted to a blocked compound cartridge is removed. Any surplus compound located at the outlet of the cartridge is then removed by wiping or cutting. The pointed end region 110 of the device 100 is then inserted into the outlet of the cartridge and the device is pushed into the cartridge and through any hardened compound blocking the cartridge outlet by applying a force to the head portion 104 until the flat under surface 118 of the head portion abuts with the neck region of the cartridge surrounding the outlet thereof. A new nozzle is then fitted to the neck region of the cartridge and over the head portion of the device. A user can then load the cartridge into a cartridge gun and actuate the piston member of the cartridge gun to force flowable compound through the device and out of the new nozzle.
Optionally, a closure such as plug or the like may be used to close the outlet region 116 of the device when the cartridge is not in use to thereby prevent compound left in the device hardening between applications. Alternatively, the device may be removed from the cartridge between separate uses of the same cartridge.
Optionally, the head portion 104 may comprise a nozzle or be configured to allow a nozzle to be attached thereto. The upper surface of the nozzle may be domed or tapered or the like to engage with the inner surface of a nozzle.
Optionally, the outer surface of the body portion 102 of the device may comprise a screw thread to aid insertion of the device into the outlet of a cartridge and through hardened compound at the cartridge outlet. The upper surface 120 of the head portion 104 may include a drive element, such as a projection or recess, for engagement with a suitable tool to drive the device into the cartridge outlet.
Optionally, the second end region 110 of the body portion 102 may comprise one or more further inlet regions. For example, the second end region may be substantially open and may not terminate at a point.
The device 100 is aptly an integral one-piece device made from a relatively stiff material, such as stainless steel, aluminium or a plastics material. Depending on the material used, the device may be manufactured by machining, moulding, or the like. At least the body portion of the device may be made from a collapsible/crushable material such that when the movable base of the cartridge tube is urged towards the cartridge outlet by the piston of the cartridge gun, the second end region of the body portion is crushed by the moveable base to thereby allow further movement of the base towards the cartridge outlet and in turn to expel further compound from the cartridge. Alternatively, the device may be made from a resilient material to allow the same to withstand a pushing force from the moveable cartridge base such that the device is pushed out of the cartridge outlet by the moveable base for reuse with a new cartridge tube.
The size and shape of the device and/or number of inlet regions may be configured to suit a particular cartridge/compound, and aptly a plurality of differently configured devices may be provided to allow a user to select a particular device which is best suited for a particular cartridge/compound. For example, at least the body portion 102 of the device may be non-circular in cross section, such as square or triangular, and may taper along its entire length. The inlet apertures 122 may be holes of any shape, elongate slots, or the like, to suit a compound viscosity, for example.
Certain embodiments of the present invention therefore provide a device for efficiently unblocking the outlet of a tube cartridge to thereby extend the working life of each cartridge and to reduce material waste and cost. The device is not limited to use with a tube cartridge and may be used with a squeezable tube of compound or other compound dispensers having an outlet which is susceptible to blocking.

Claims (17)

Claims
1. A device for unblocking the outlet of a tube cartridge, comprising:
an elongate body portion having at least one inlet located between a first end region and a second end region, at least one outlet proximal the second end region, and a bore extending from the at least one inlet to the at least one outlet.
2. The device according to claim 1, wherein the at least one inlet comprises a plurality of spaced apart holes each extending into the bore.
3. The device according to claim 2, wherein at least two of the holes are longitudinally spaced apart with respect to a longitudinal axis of the body portion.
4. The device according to claim 2 or 3, wherein an axis of a first one of the holes is oriented substantially perpendicularly to an axis of a second one of the holes.
5. The device according to any one of claims 2 to 4, wherein the plurality of spaced apart holes comprises at least two pairs of diametrically opposed holes, each pair of diametrically opposed holes being longitudinally spaced from an adjacent pair of diametrically opposed holes.
6. The device according to claim 5, wherein the axes of a first pair of said diametrically opposed holes extend in a first direction and the axes of an adjacent second pair of said diametrically opposed holes extend in a second direction.
7. The device according to claim 6, wherein the first direction is substantially perpendicular to the second direction.
8. The device according to any preceding claim, further comprising a head portion disposed at the second end region of the body portion and extending outwardly therefrom to provide an abutment surface for abutting a neck region of a cartridge when the device is inserted therein in use.
9. The device according to claim 8, wherein the head portion comprises the at least one outlet.
10. The device according to claim 9, wherein the bore defines the at least one outlet.
11. The device according to any of claims 8 to 10, wherein the head portion has a width of around 12mm.
12. The device according to any preceding claim, wherein the bore and at least one outlet each have a width of at least 5mm.
13. The device according to any preceding claim, wherein the at least one inlet has a width of at least 5mm.
14. The device according to any preceding claim, wherein the body portion has a width of around 7mm.
15. The device according to any preceding claim, wherein the first end region is substantially tapered.
16. The device according to claim 15, wherein the first end region terminates at a point.
17. The device according to any preceding claim, having a substantially circular cross section.
Intellectual
Property
Office
Application No: GB1814560.7
Examiner: Mr Rhys J. Williams
GB1814560.7A 2018-09-07 2018-09-07 Unblocking device Withdrawn GB2576926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1814560.7A GB2576926A (en) 2018-09-07 2018-09-07 Unblocking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1814560.7A GB2576926A (en) 2018-09-07 2018-09-07 Unblocking device

Publications (2)

Publication Number Publication Date
GB201814560D0 GB201814560D0 (en) 2018-10-24
GB2576926A true GB2576926A (en) 2020-03-11

Family

ID=63921215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1814560.7A Withdrawn GB2576926A (en) 2018-09-07 2018-09-07 Unblocking device

Country Status (1)

Country Link
GB (1) GB2576926A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB377285A (en) * 1931-04-24 1932-07-25 Hellmuth Lange An improved delivery device for use with cartons, boxes and like containers containing pulverulent, granular or like loose materials
CH261322A (en) * 1948-02-11 1949-05-15 Aebi Max Pouring device intended to be inserted into containers, especially for liquid canned food.
AT180894B (en) * 1953-02-04 1955-01-25 Rudolf Sen Maczejka Removal device for containers made of elastic or plastic material, especially tubes
FR2354254A1 (en) * 1976-06-10 1978-01-06 Raab Friedrich Milk storage and dispensing container - has recess clipping pouring spout with sharp point inserted in container
FR2500518A1 (en) * 1981-02-20 1982-08-27 Lincrusta Cartridge for applying mastic type products - has independent injection tube with pad around base fixed to top of cartridge
DE3826887A1 (en) * 1988-08-08 1990-02-15 Niedecker Herbert Tubular package of flexible material for pasty substances
DE102007060382A1 (en) * 2007-12-12 2009-06-18 Henkel Ag & Co. Kgaa Tubular bag opening device for use at bag gun, has receptacle provided for cutting corner of tubular bag to avoid blockage of nozzle, where receptacle and cutting unit are provided at round base
US20110091590A1 (en) * 2009-02-12 2011-04-21 Mcmahon Michael J Method and device for dispensing sealant within a gap

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB377285A (en) * 1931-04-24 1932-07-25 Hellmuth Lange An improved delivery device for use with cartons, boxes and like containers containing pulverulent, granular or like loose materials
CH261322A (en) * 1948-02-11 1949-05-15 Aebi Max Pouring device intended to be inserted into containers, especially for liquid canned food.
AT180894B (en) * 1953-02-04 1955-01-25 Rudolf Sen Maczejka Removal device for containers made of elastic or plastic material, especially tubes
FR2354254A1 (en) * 1976-06-10 1978-01-06 Raab Friedrich Milk storage and dispensing container - has recess clipping pouring spout with sharp point inserted in container
FR2500518A1 (en) * 1981-02-20 1982-08-27 Lincrusta Cartridge for applying mastic type products - has independent injection tube with pad around base fixed to top of cartridge
DE3826887A1 (en) * 1988-08-08 1990-02-15 Niedecker Herbert Tubular package of flexible material for pasty substances
DE102007060382A1 (en) * 2007-12-12 2009-06-18 Henkel Ag & Co. Kgaa Tubular bag opening device for use at bag gun, has receptacle provided for cutting corner of tubular bag to avoid blockage of nozzle, where receptacle and cutting unit are provided at round base
US20110091590A1 (en) * 2009-02-12 2011-04-21 Mcmahon Michael J Method and device for dispensing sealant within a gap

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Publication number Publication date
GB201814560D0 (en) 2018-10-24

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