FR2748681A1 - Piercing tool for casks - Google Patents

Piercing tool for casks Download PDF

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Publication number
FR2748681A1
FR2748681A1 FR9606087A FR9606087A FR2748681A1 FR 2748681 A1 FR2748681 A1 FR 2748681A1 FR 9606087 A FR9606087 A FR 9606087A FR 9606087 A FR9606087 A FR 9606087A FR 2748681 A1 FR2748681 A1 FR 2748681A1
Authority
FR
France
Prior art keywords
needle
barrel
base
tool
drilling
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.)
Granted
Application number
FR9606087A
Other languages
French (fr)
Other versions
FR2748681B1 (en
Inventor
Bernard Gambier
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.)
Orano Cycle SA
Original Assignee
Compagnie Generale des Matieres Nucleaires SA
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 Compagnie Generale des Matieres Nucleaires SA filed Critical Compagnie Generale des Matieres Nucleaires SA
Priority to FR9606087A priority Critical patent/FR2748681B1/en
Publication of FR2748681A1 publication Critical patent/FR2748681A1/en
Application granted granted Critical
Publication of FR2748681B1 publication Critical patent/FR2748681B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67BAPPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00Hand- or power-operated devices for opening closed containers
    • B67B7/24Hole-piercing devices
    • B67B7/26Hole-piercing devices combined with spouts

Abstract

<P> Drilling tool for a barrel (6) comprising a piercing needle (31) whose wall is traversed by a spring (41) which retracts when the barrel is crossed and then reopens to prevent accidental extraction of the tool. A base (33) is pushed back and establishes the seal against the hole by a seal (39). Conduits (45) for discharging excess gas or for introducing an extinguishing liquid or the like are connected to the needle (31). The tool is applicable to all drums filled with chemical, radioactive or other products and is used with greater ease and in more varied circumstances than previous tools. </P>

Description

FUT DRILLING TOOL
FROM SCRIPT ION
The invention relates to a barrel drilling tool.

 It can be applied in particular to drums containing certain contaminated waste, or to the chemical and petroleum industries, and in general to all areas of activity where drums filled with material liable to deteriorate or react are used chemically in another way over time. The most dangerous phenomena which can appear are then a production of heat likely to cause a fire or a release of gas deforming the barrel before possibly making it burst: we then feel the need to degas the barrel and to inject a product extinguisher or inhibitor of the exothermic reaction. Additionally, you may also want to take samples of the contents of the keg or empty it completely. All these requirements impose the design of an appropriate drilling tool.

 A barrel drilling tool is currently available and includes a drilling tip for the lid of the barrel handled by the operator. This point slides in a cylindrical barrel carried by a flat base placed on the cover. The base also carries three radiating arms provided with pads tight against the circumference of the barrel and which thus hold the tool.

Finally, the piercing point is hollow and connected to inlet or outlet tubes; when it has pierced the cover, communication is established between the inside and the outside of the barrel via the needle and the tubes, which makes it possible to inject or evacuate the desired fluids.

 The main drawback that can be criticized for this system comes from the fixing pads, which impose a large footprint, rather tedious clamping operations and above all restrict the possibilities of using the tool: the barrel must have a diameter determined, is not distorted.

and be clear of surrounding objects; finally, it can only be pierced with the cover, while drilling the bottom or the side wall would often be preferable, for example if draining is necessary.

 The object of the invention is therefore to improve the known tool by replacing the system of fixing pads with a more practical system, which allows the tool to be used in more numerous situations.

 Thus, the invention relates in its most general form to a barrel drilling tool comprising a base to be placed on the barrel, a hollow drilling needle sliding through the base and connected to a pipe, characterized in that it includes a device for fixing the tool to the barrel which consists of a part engaged in the needle and opening to exit the needle when the needle has entered the barrel, and in that the base is linked to the needle by springs recalling the base towards a drilling end of the needle. The wall of the barrel located around the hole is then pinched between the part engaged in the needle and the base, which ensures the maintenance of the tool on the barrel when the hole is finished.

 In the embodiment currently conceived, the part engaged in the needle is a spring, two opposite parts of which exit from the needle by grooves passing through the needle.

The invention will now be described more concretely by commenting on the following figures.
Figure 1 shows the prior design
mentioned above, and
Figures 2 and 3 are representations
purely illustrative of the invention and of a
essential part of it.

 The tool of FIG. 1 comprises a hollow needle 1 sliding in a cylindrical barrel 2 from which it leaves however from the rear where it carries a handle 3 by which it can be inserted. It is then a percussion drilling tool, although a drilling tool by rotation of the needle is also known. The rear part of the needle 1 extracted from the barrel 2 carries an intake tube 4 terminated by a connector 5 which can be connected to a fire extinguisher to inject, through the intake tube 4 and the needle 1, a extinguisher product in a barrel 6 after its cover 7 has been pierced by needle 1 of the tool. The barrel 2 is fixed on the upper face of a circular base 8, the lower face of which carries a swelling gasket 9 placed on the cover 7. In addition, three pad systems 10 are located around the base 8, to which they are connected by three arms 11 arranged radially around it. The arms 11 are extendable and consist of a section 12 fixed to the base 8 and of a section 13 superimposed on the previous one and which can slide on it while being tightened to the desired extension position of the arm 11 by a bolt 14 engaged through a longitudinal slot 15 passing through the section 13 and a similar slot 16 passing through the section 12.

The section 13 carries a rib 17 to which a handle 18 is articulated; a stirrup 19 is fixed to it, and it carries the pad 20 of the system 10 by means of a tongue 21 suspended from the stirrup 19 by a joint with small clearance 22. When the length of the arm 11 is chosen, the tightening of the tool consists in tilting the handle 18 to push the shoe 20 towards the circular wall 23 of the barrel 7 until it touches it: the tongue 21 then turns on the stirrup 19 to the extent permitted by the travel of the joint 22, after which the system jams and immobilizes the tool in the position of
re drilling.

 Finally, an evacuation tube 24 terminated by a filter 25 is connected to the barrel 2, which it passes through, so that the gases under overpressure in the barrel 6 evacuate it as soon as the drilling is carried out and pass into the tube d discharge 24, where the filter 25 rids them of their dangerous particles before it flows into the atmosphere. The seal between the needle 1 and the barrel 2 must be ensured by a seal 26, which automatically inflates upon insertion.

 We now pass to the commentary on the invention and to FIG. 2. We find a hollow needle, here bearing the reference 31, but which is here integral with a cylindrical body 32 in which a base 33, which must be placed on the cover 7 of barrel 6, slide. For this, the body 32 is provided with a lower lip 34 surrounding the base 33, two rods 35 located around the needle 31 and which extend in parallel holes 36 in the base 33, and springs 37 threaded around the rods 35 and compressed between the body 32 and the base 33 to push the latter towards the drilling end 38 of the needle 31. The base 33 carries as before a seal 39 on its underside for lean on the cover 7 by establishing a seal, but the attachment of the needle 31 to the body 32 which replaces the sliding guide barrel 2 makes it possible to omit the seal 26.

 An essential element of the invention appears mainly in FIG. 3 and consists of a spring system 40 intended to secure the tool to the barrel 6 in place of the shoe systems 10, which are omitted. The essential element of the spring system 40 is therefore a V-shaped spring 41, generally placed in the needle 31 but having two oblique branches 42 crossing axial and opposite grooves 43 cutting the wall of the needle 31. The branches 42 s 'extend rearward of needle 31 at an acute angle. They are joined at the front by turns 44 in which a pin 29, the ends of which are fixed to the wall of the needle 31, is threaded. We see that this arrangement allows the branches 42 to exit the needle 31 in normal circumstances but to close to enter the wall of the needle 31 when the latter pierces the cover 7, thus retracting the spring 41; but then the branches 42 open again to rest at their ends under the cover 7 and prevent the tool from being torn off. The base 33 has moved back as a function of the thickness of the cover 7 by compressing the springs 37 and pressing the seal 39 on the cover 7, which suffices to preserve the seal.

 The tool finally comprises a pipe 45 disposed on the body 32 and connected to the needle 31, similar to that of the previous tool but arranged a little differently: there is, after a connection 46 screwed to the body 32, a branch in T 47, one of the branches of which leads to an intake tube 48 similar to the tube 4 and terminated by a connector 49 for connecting a fire extinguisher, and the other branch of which is a discharge tube 50 similar to the discharge tube 24 and ending like it with a very high efficiency filter 51. The connector 49 is provided with a valve (not shown) which prevents the outflow of fluid towards the outside of the barrel 6. In order to avoid fouling the filter 51 with extinguishing agent, there is also a valve 52 on the evacuation tube 50, and this valve is closed when a product injection is undertaken.

 Unlike the previous system, it is impossible to remove the tool without cutting the barrel 6, but this is not a problem since the tool must generally remain on the drilled barrel anyway. We immediately see the small footprint of this new tool because of the removal of the shoe systems 10 and also the replacement of the barrel 2 by the cylindrical body 32 fixed to the needle 31 and in which the base 33 slides. The new tool can be placed in difficulty on the side wall 23 of the barrel 6 to pierce it, and it can even be placed under the bottom of a barrel 6 slightly raised in order to empty it. A simple pressure on the rear of the cylindrical body 32 makes it possible to fix it.

Claims (4)

 1. Barrel drilling tool comprising a base (33) to be placed on the barrel (6), a hollow drilling needle (31) sliding through the base and connected to a pipe (45), characterized in that it comprises a device for fixing the tool to the barrel which consists of a part (41) engaged in the needle and opening to exit the needle when the needle has entered the barrel, and in that the 'base is linked to the needle by springs (37) recalling the base to a drilling end (38) of the needle.
 2. drilling tool according to claim 1, characterized in that the needle (31) is integral with a cylindrical body (32) in which the base (33) slides, the springs (37) being located between the base and body.
 3. drilling tool according to any one of claims 1 or 2, characterized in that the part (41) engaged in the needle (31) is a spring of which two opposite parts (42) exit the needle by grooves (43) passing through the needle.
 4. Drilling tool according to claim 3, characterized in that the spring is a coil spring (44) retained in a pin (29) engaged through the needle and the coils.
FR9606087A 1996-05-15 1996-05-15 Fut drilling tool Expired - Fee Related FR2748681B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9606087A FR2748681B1 (en) 1996-05-15 1996-05-15 Fut drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9606087A FR2748681B1 (en) 1996-05-15 1996-05-15 Fut drilling tool

Publications (2)

Publication Number Publication Date
FR2748681A1 true FR2748681A1 (en) 1997-11-21
FR2748681B1 FR2748681B1 (en) 1998-06-26

Family

ID=9492178

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9606087A Expired - Fee Related FR2748681B1 (en) 1996-05-15 1996-05-15 Fut drilling tool

Country Status (1)

Country Link
FR (1) FR2748681B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1487735A1 (en) * 2002-02-27 2004-12-22 International Dispensing Corporation Self-sealing dispensing tap for flexible packages

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191312224A (en) * 1912-09-24 1913-12-24 Frederick James Storey Improvements in Taps, Cocks and the like, having Tapping Means.
US1662043A (en) * 1927-04-30 1928-03-06 Owen Fred Miller Detachable spout for fluid receptacles
US2585801A (en) * 1949-10-03 1952-02-12 Lieuwen Pete Liquid dispenser
US2975938A (en) * 1958-12-31 1961-03-21 William J Ruano Can spout
US3100586A (en) * 1960-03-14 1963-08-13 John R Haynes Valved opener for sealed containers
WO1994018110A1 (en) * 1993-02-05 1994-08-18 Roy Steinar Johnsen Insertable non-drip dispensing tube

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191312224A (en) * 1912-09-24 1913-12-24 Frederick James Storey Improvements in Taps, Cocks and the like, having Tapping Means.
US1662043A (en) * 1927-04-30 1928-03-06 Owen Fred Miller Detachable spout for fluid receptacles
US2585801A (en) * 1949-10-03 1952-02-12 Lieuwen Pete Liquid dispenser
US2975938A (en) * 1958-12-31 1961-03-21 William J Ruano Can spout
US3100586A (en) * 1960-03-14 1963-08-13 John R Haynes Valved opener for sealed containers
WO1994018110A1 (en) * 1993-02-05 1994-08-18 Roy Steinar Johnsen Insertable non-drip dispensing tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1487735A1 (en) * 2002-02-27 2004-12-22 International Dispensing Corporation Self-sealing dispensing tap for flexible packages
EP1487735A4 (en) * 2002-02-27 2005-08-10 Int Dispensing Corp Self-sealing dispensing tap for flexible packages

Also Published As

Publication number Publication date
FR2748681B1 (en) 1998-06-26

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Effective date: 20060131