WO1999006184A1 - Three in one cryogenic wrench - Google Patents

Three in one cryogenic wrench Download PDF

Info

Publication number
WO1999006184A1
WO1999006184A1 PCT/US1997/018479 US9718479W WO9906184A1 WO 1999006184 A1 WO1999006184 A1 WO 1999006184A1 US 9718479 W US9718479 W US 9718479W WO 9906184 A1 WO9906184 A1 WO 9906184A1
Authority
WO
WIPO (PCT)
Prior art keywords
cryogenic
wrench
head
handle
trailers
Prior art date
Application number
PCT/US1997/018479
Other languages
French (fr)
Inventor
Michael R. Whitman
Original Assignee
Whitman Michael R
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 Whitman Michael R filed Critical Whitman Michael R
Priority to AU51461/98A priority Critical patent/AU5146198A/en
Publication of WO1999006184A1 publication Critical patent/WO1999006184A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/02Spanners; Wrenches with rigid jaws
    • B25B13/08Spanners; Wrenches with rigid jaws of open jaw type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/48Spanners; Wrenches for special purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/48Spanners; Wrenches for special purposes
    • B25B13/50Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes

Definitions

  • the present invention relates to wrenches and more particularly to wrenches suited for use ' with cryogenic trailers .
  • each fitting is often found on trailers containing common cryogenic liquids such as oxygen, nitrogen, and argon. While each fitting is designed with a four tang construction, the diameters, thicknesses, and widths vary. Heretofore, it has been necessary to use a different wrench with each particular fitting because a wrench designed for use with one fitting would not work with the other two fittings.
  • U.S. Patent No. 921,290 issued on May 11, 1909 to Shelburne discloses a ratchet wrench in which the rotary nut engaging member is open at one edge, thereby allowing insertion of the nut from the side or the edge.
  • the ratchet wrench also allows the ratchets to be quickly and easily reversed.
  • U.S. Patent No. 3,447,405 issued on Jun . 3, 1969 to Lennon et al . discloses a fitting wrench having a handle with a head positioned at least at one end thereof.
  • the head includes a set of jaws which open laterally of the wrench handle to provide substantially parallel jaw faces.
  • U.S. Patent No. 4,715,252 issued on Dec. 29, 1987 to Pella discloses a valve wrench for safely rotating the wheel of a large valve.
  • the wrench includes an elongated handle, and a wheel grip.
  • the wheel grip further includes a rim grip, and a spoke grip which extends downwardly and inwardly so as to grasp the spoke of the valve wheel .
  • Johnstun discloses a unidirectional gas valve shutoff tool designed for closing a gas valve having a valve stem with a rectangular profile.
  • the tool has a head and a handle extending from the head to accommodate the application of leverage to the head.
  • a rectangular receptacle is formed in one face of the head and has two diametrically opposed corners for engaging corresponding corners of the valve stem in order for the tool to rotate the gas valve .
  • the head is angularly offset in order to provide an ergonomically acceptable configuration for the tool.
  • French Patent No. 1-, 519,120 issued on Mar. 1968 discloses a key for the attachment of the nut of a valve assembly onto a butane gas bottle used with heating installations and domestic kitchens.
  • Great Britain Patent No. 2,298 issued on Jan.
  • the key is formed of a cylindrical shape with an internal diameter of approximately the same size as the external diameter of the cap, with two segmental shaped apertures formed in the top of the cylinder to fit over two projections on the cap, and with the front of the cylindrical portion of the key having a greater depth than the back where the handle is attached.
  • a three in one cryogenic wrench for engaging the fitting on the couplings of cryogenic trailers .
  • the three in one cryogenic wrench includes a handle and a head integrally formed from the handle.
  • the head contains a central aperture and terminates in an open end so as to define a pair of jaws.
  • Each jaw contains a recess on its interior surface.
  • the head also contains a third recess which is positioned directly opposite of the open end.
  • the three in one cryogenic wrench is carefully designed such that it is capable of engaging the three couplings most commonly found on cryogenic trailers .
  • the three in one cryogenic wrench is constructed from non-striking materials in order prevent accidental sparking.
  • Fig. 1 is a perspective view of a cryogenic wrench in accordance with the present invention.
  • Fig. 2 is a top plan view of the cryogenic wrench. Similar reference characters denote corresponding features consistently throughout the attached drawings .
  • a three in one cryogenic wrench is shown and generally indicated by the numeral 10.
  • the three in one cryogenic wrench is particularly suited for engaging the fitting found on the couplings of cryogenic trailers.
  • the three in one cryogenic wrench 10 includes a handle 12 having a blunt end 26, and a head 14 integrally formed on the opposite end of the handle 12.
  • the head 14 contains a central aperture and terminates in an open end which is generally indicated by the numeral 20.
  • the head 14 is designed such that a pair of jaws 16 is defined in conjunction with the open end 20.
  • Each jaw 16 contains a recess 18 on its interior surface. As seen in Fig. 2, the recesses 18 on the jaws 16 are positioned directly opposite of one another.
  • the handle 12 also contains a recess 18 which is positioned directly opposite of the open end 20.
  • the recesses 18 may be equally sized and dimensioned.
  • the handle 12 includes opposing surfaces 22 (only one shown) , and opposing sides 24.
  • the opposing surfaces 22 are sloped toward each other along the length of the handle 12 away from head 14, and the opposite sides are tapered other along the length of the handle away from head 14.
  • the sloped opposing surfaces 22 and tapered opposing sides 24 converge at the blunt end 26, providing the same with reduced thickness and width in comparison to the portion of the handle adjacent to the head 14.
  • the taper serves to alleviate some of the problems encountered during removal of fittings on the trailer. For example, the space available to maneuver a wrench is often restrictive. Thus, by tapering the handle 12 of the three in one cryogenic wrench, the travel distance is increased and the risk of accidentally striking any adjacent fittings is minimized.
  • the three in one cryogenic wrench 10 is carefully designed such that it is capable of engaging the three different couplings most commonly found on cryogenic trailers. These couplings are often found on oxygen, nitrogen, and argon trailers.
  • the three in one cryogenic wrench 10 is constructed from non-striking materials in order to prevent accidental sparking. Suitable non-striking materials include aluminum and aluminum containing alloys of the type well known in the art.
  • the length of the handle 12 may be increased to provide benefits to the operator. For example, extending the length of the handle 12 provides a certain mechanical advantage in the application of torque to the fitting, and eliminates the need to use a brass hammer on the fitting. Furthermore the operator's hand is placed further away from the fitting in order to minimize the potential effects of an accidental discharge when the hoses are uncoupled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

A three in one cryogenic wrench (10) for engaging the fitting on the couplings of cryogenic trailers is disclosed. The three in one cryogenic wrench includes a handle (12) and a head (14) integrally formed from the handle. The head has an open end (20) which defines a pair of jaws (16). Three recesses (18) are disposed within the head, one in the interior surface of each jaw and one directly opposite of the open end. The three in one cryogenic wrench is carefully designed such that it is capable of engaging the three types of couplings most commonly found on cryogenic trailers. The three in one cryogenic wrench may also be constructed from non-striking materials in order to prevent accidental sparking.

Description

THREE IN ONE CRYOGENIC WRENCH
BACKGROUND OF THE INVENTION
1. FIELD OF THE INVENTION
The present invention relates to wrenches and more particularly to wrenches suited for use' with cryogenic trailers .
2. DESCRIPTION OF THE RELATED ART
It is well known that certain dangers are inherent in the storage and dispensing of cryogenic materials due to the extreme temperatures involved. For example, the temperature of most cryogenic liquids is often below 350° Fahrenheit. It is common practice to utilize brass hammers for striking the tangs on the trailer fittings when adjusting the associated hose. This practice places the operator in a very compromising position because of the proximity to the cryogenic liquid. Furthermore, the action of striking the fitting can sometimes create sparks which result in catastrophic consequences for the operator and the surroundings.
There are currently three common types of fittings used on cryogenic trailers. Each fitting is often found on trailers containing common cryogenic liquids such as oxygen, nitrogen, and argon. While each fitting is designed with a four tang construction, the diameters, thicknesses, and widths vary. Heretofore, it has been necessary to use a different wrench with each particular fitting because a wrench designed for use with one fitting would not work with the other two fittings.
While the literature discloses various wrenches and similar devices none are particularly suited for use with multiple cryogenic fittings. For example, U.S. Patent No. 150,301 issued on Apr. 28, 1874 to Delfer discloses a wrench adapted for use as a wagon-wrench and other situations where adjustability of the jaws is not required.
U.S. Patent No. 921,290 issued on May 11, 1909 to Shelburne discloses a ratchet wrench in which the rotary nut engaging member is open at one edge, thereby allowing insertion of the nut from the side or the edge. The ratchet wrench also allows the ratchets to be quickly and easily reversed.
U.S. Patent No. 3,447,405 issued on Jun . 3, 1969 to Lennon et al . discloses a fitting wrench having a handle with a head positioned at least at one end thereof. The head includes a set of jaws which open laterally of the wrench handle to provide substantially parallel jaw faces.
U.S. Patent No. 4,715,252 issued on Dec. 29, 1987 to Pella discloses a valve wrench for safely rotating the wheel of a large valve. The wrench includes an elongated handle, and a wheel grip. The wheel grip further includes a rim grip, and a spoke grip which extends downwardly and inwardly so as to grasp the spoke of the valve wheel . U.S. Patent No. 5,440,956 issued on Aug. 15, 1995 to
Johnstun discloses a unidirectional gas valve shutoff tool designed for closing a gas valve having a valve stem with a rectangular profile. The tool has a head and a handle extending from the head to accommodate the application of leverage to the head. A rectangular receptacle is formed in one face of the head and has two diametrically opposed corners for engaging corresponding corners of the valve stem in order for the tool to rotate the gas valve . The head is angularly offset in order to provide an ergonomically acceptable configuration for the tool. French Patent No. 1-, 519,120 issued on Mar. 1968 discloses a key for the attachment of the nut of a valve assembly onto a butane gas bottle used with heating installations and domestic kitchens. Great Britain Patent No. 2,298 issued on Jan. 1897 discloses an improved key for opening the caps of petrol and similar tins. The key is formed of a cylindrical shape with an internal diameter of approximately the same size as the external diameter of the cap, with two segmental shaped apertures formed in the top of the cylinder to fit over two projections on the cap, and with the front of the cylindrical portion of the key having a greater depth than the back where the handle is attached. U.K. Patent Application No. 2,018,179 published on
Oct. 1979 discloses a spanner made of fiber-reinforced resin in which carbon or boron fiber reinforcement is used to provide strength and reduced weight while providing a spark-proof spanner. None of the above inventions and patents, taken either singularly or in combination, is seen to describe the instant invention as claimed. Thus a cryogenic wrench solving the aforementioned problems is desired. SUMMARY OF THE INVENTION
Accordingly, it is a principal object of the invention to provide a wrench capable of engaging the fittings of cryogenic trailers.
It is another object of the invention to provide a wrench capable of engaging a variety of different fittings of cryogenic trailers.
It is an object of the invention to provide improved elements and arrangements thereof in a three in one cryogenic wrench for the purposes described which is inexpensive, dependable and fully effective in accomplishing its intended purposes. In accordance with the objects of the invention, a three in one cryogenic wrench is provided for engaging the fitting on the couplings of cryogenic trailers . The three in one cryogenic wrench includes a handle and a head integrally formed from the handle. The head contains a central aperture and terminates in an open end so as to define a pair of jaws. Each jaw contains a recess on its interior surface. The head also contains a third recess which is positioned directly opposite of the open end. The three in one cryogenic wrench is carefully designed such that it is capable of engaging the three couplings most commonly found on cryogenic trailers . In preferred embodiments of the invention, the three in one cryogenic wrench is constructed from non-striking materials in order prevent accidental sparking.
These and other objects of the present invention will become readily apparent upon further review of the following specification and drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view of a cryogenic wrench in accordance with the present invention.
Fig. 2 is a top plan view of the cryogenic wrench. Similar reference characters denote corresponding features consistently throughout the attached drawings .
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Figs. 1 and 2 of the drawings, a three in one cryogenic wrench is shown and generally indicated by the numeral 10. The three in one cryogenic wrench is particularly suited for engaging the fitting found on the couplings of cryogenic trailers. As seen in Figs. 1 and 2, the three in one cryogenic wrench 10 includes a handle 12 having a blunt end 26, and a head 14 integrally formed on the opposite end of the handle 12. The head 14 contains a central aperture and terminates in an open end which is generally indicated by the numeral 20.
The head 14 is designed such that a pair of jaws 16 is defined in conjunction with the open end 20. Each jaw 16 contains a recess 18 on its interior surface. As seen in Fig. 2, the recesses 18 on the jaws 16 are positioned directly opposite of one another. The head
14 also contains a recess 18 which is positioned directly opposite of the open end 20. In preferred embodiments of the invention, the recesses 18 may be equally sized and dimensioned. Referring particularly to Fig. 2, the handle 12 includes opposing surfaces 22 (only one shown) , and opposing sides 24. The opposing surfaces 22 are sloped toward each other along the length of the handle 12 away from head 14, and the opposite sides are tapered other along the length of the handle away from head 14. The sloped opposing surfaces 22 and tapered opposing sides 24 converge at the blunt end 26, providing the same with reduced thickness and width in comparison to the portion of the handle adjacent to the head 14. The taper serves to alleviate some of the problems encountered during removal of fittings on the trailer. For example, the space available to maneuver a wrench is often restrictive. Thus, by tapering the handle 12 of the three in one cryogenic wrench, the travel distance is increased and the risk of accidentally striking any adjacent fittings is minimized.
The three in one cryogenic wrench 10 is carefully designed such that it is capable of engaging the three different couplings most commonly found on cryogenic trailers. These couplings are often found on oxygen, nitrogen, and argon trailers. In preferred embodiments of the invention, the three in one cryogenic wrench 10 is constructed from non-striking materials in order to prevent accidental sparking. Suitable non-striking materials include aluminum and aluminum containing alloys of the type well known in the art. Furthermore, the length of the handle 12 may be increased to provide benefits to the operator. For example, extending the length of the handle 12 provides a certain mechanical advantage in the application of torque to the fitting, and eliminates the need to use a brass hammer on the fitting. Furthermore the operator's hand is placed further away from the fitting in order to minimize the potential effects of an accidental discharge when the hoses are uncoupled.
It is to be understood that the present invention is not limited to the embodiment described above, but encompasses any and all embodiments within the scope of the following claims:

Claims

. CLAIMS
1. A three in one cryogenic wrench for engaging the fitting on the couplings of cryogenic trailers, said wrench comprising: a handle having opposed ends ; and a head integrally formed at one end of said handle, said head containing a central aperture and terminating in an open end, thereby defining a pair of jaws, each of said jaws containing a recess therein, and said head further containing a recess opposite of said open end.
2. A three in one cryogenic wrench as recited in claim 1 wherein the other end of said handle has a width and thickness smaller than the width and thickness of said one end.
3. A three in one cryogenic wrench as recited in claim 1 wherein each of said recesses is equally sized and dimensioned.
4. A three in one cryogenic wrench as recited in claim 1 wherein said wrench is constructed from a non- striking material.
5. A three in one cryogenic wrench as recited in claim 4 wherein said non-striking material is selected from the group consisting of aluminum and aluminum containing alloys.
6. A three in one cryogenic wrench for engaging the fitting on the couplings of cryogenic trailers, said wrench comprising: a handle formed of a non-striking material and having a first end and a second end, said first end of said handle having a width and thickness smaller than the width and thickness of said second end; and a head integrally formed at said second end of said handle, said head being formed of a non-striking material, said head containing a central aperture and terminating in an open end, thereby defining a pair of jaws, each of said jaws containing a recess therein, and said head further containing a recess opposite of said open end.
7. A three in one cryogenic wrench as recited in claim 6 wherein each of said recesses is equally sized and dimensioned.
8. A three in one cryogenic wrench as recited in claim 6 wherein said non-striking material is selected from the group consisting of aluminum and aluminum containing alloys.
PCT/US1997/018479 1997-07-30 1997-11-06 Three in one cryogenic wrench WO1999006184A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU51461/98A AU5146198A (en) 1997-07-30 1997-11-06 Three in one cryogenic wrench

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90300897A 1997-07-30 1997-07-30
US08/903,008 1997-07-30

Publications (1)

Publication Number Publication Date
WO1999006184A1 true WO1999006184A1 (en) 1999-02-11

Family

ID=25416778

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/018479 WO1999006184A1 (en) 1997-07-30 1997-11-06 Three in one cryogenic wrench

Country Status (2)

Country Link
AU (1) AU5146198A (en)
WO (1) WO1999006184A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2920330A1 (en) * 2007-09-03 2009-03-06 Facom Soc Par Actions Simplifi IMPROVED MONOBLOC MANUAL TIGHTENING TOOL FOR DRIVING A FIXING ELEMENT
WO2010011190A1 (en) * 2008-07-25 2010-01-28 Keng Nye Kao Dispensing material for applications
CN102950556A (en) * 2012-11-16 2013-03-06 辽宁省电力有限公司营口供电公司 Wrench special for fastening steel pipe pole base screw
CN106193798A (en) * 2015-04-02 2016-12-07 拖拉机供应公司 Post for fence straightener

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE17417E (en) * 1929-08-27 Benjamin b
US2394808A (en) * 1944-02-09 1946-02-12 Rohr Aircraft Corp Wrench
US2603999A (en) * 1951-09-07 1952-07-22 Julius H Boutte Tool handle grip
US2685219A (en) * 1952-03-31 1954-08-03 Diebold Fritz Open-end wrench jaws having thrust and pull surfaces of different curvature
GB1220923A (en) * 1967-05-08 1971-01-27 Jacob Lionel Davies Improvements in or relating to spanners
US3850057A (en) * 1973-11-23 1974-11-26 Johnson P Combination torqueing and ratcheting wrench
US4440047A (en) * 1981-12-31 1984-04-03 Robbins Christopher B Uni-directional drive wrench
US5131312A (en) * 1989-09-18 1992-07-21 Macor Richard J Surface conforming, torque enhancing wrench
US5440956A (en) * 1994-01-14 1995-08-15 Johnstun; A. James Unidirectional gas valve shutoff tool and method
US5524511A (en) * 1994-06-13 1996-06-11 Takas Tool Company, Inc. Locknut tool

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE17417E (en) * 1929-08-27 Benjamin b
US2394808A (en) * 1944-02-09 1946-02-12 Rohr Aircraft Corp Wrench
US2603999A (en) * 1951-09-07 1952-07-22 Julius H Boutte Tool handle grip
US2685219A (en) * 1952-03-31 1954-08-03 Diebold Fritz Open-end wrench jaws having thrust and pull surfaces of different curvature
GB1220923A (en) * 1967-05-08 1971-01-27 Jacob Lionel Davies Improvements in or relating to spanners
US3850057A (en) * 1973-11-23 1974-11-26 Johnson P Combination torqueing and ratcheting wrench
US4440047A (en) * 1981-12-31 1984-04-03 Robbins Christopher B Uni-directional drive wrench
US5131312A (en) * 1989-09-18 1992-07-21 Macor Richard J Surface conforming, torque enhancing wrench
US5440956A (en) * 1994-01-14 1995-08-15 Johnstun; A. James Unidirectional gas valve shutoff tool and method
US5524511A (en) * 1994-06-13 1996-06-11 Takas Tool Company, Inc. Locknut tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2920330A1 (en) * 2007-09-03 2009-03-06 Facom Soc Par Actions Simplifi IMPROVED MONOBLOC MANUAL TIGHTENING TOOL FOR DRIVING A FIXING ELEMENT
WO2009030852A1 (en) * 2007-09-03 2009-03-12 Facom One-piece manual tightening tool for driving a fastener
US8613240B2 (en) 2007-09-03 2013-12-24 Stanley Works (Europe) Improver one-piece manual tightening tool for driving a fastener
WO2010011190A1 (en) * 2008-07-25 2010-01-28 Keng Nye Kao Dispensing material for applications
CN102950556A (en) * 2012-11-16 2013-03-06 辽宁省电力有限公司营口供电公司 Wrench special for fastening steel pipe pole base screw
CN106193798A (en) * 2015-04-02 2016-12-07 拖拉机供应公司 Post for fence straightener
US10233668B2 (en) 2015-04-02 2019-03-19 Tractor Supply Company Fence post straightener

Also Published As

Publication number Publication date
AU5146198A (en) 1999-02-22

Similar Documents

Publication Publication Date Title
US5259281A (en) Combination hand tool
US4715252A (en) Valve wrench
US4290465A (en) Hand instrument
AU2020267258B2 (en) Pipe wrench
EP1908557A2 (en) Wrench
US2585641A (en) Finger-supported tool for locating and turning small nuts, boltheads, etc.
US6076435A (en) Tool for multiple purposes
US5862721A (en) Faucet handle tool
US5819610A (en) Combination hand tool
US6240809B1 (en) Modified ratchet devices
US20140290446A1 (en) Wrench
US4691599A (en) Lug wrench extension handle
US5743158A (en) Hand wrenching tool for removing torque limited fasteners
US5680800A (en) Socket drive extension grip
WO1999006184A1 (en) Three in one cryogenic wrench
US20190184541A1 (en) Tool handle extenders
US5332240A (en) Drill chuck key tool
US1596602A (en) Combination tool
US5549022A (en) Closed end box line wrench
US20010035076A1 (en) Slide lock wrench
US2015613A (en) Tool
US5595097A (en) Two-sided, multi-angled wrench
US20230100705A1 (en) Center Drive Wrench
US6955183B2 (en) Pressure tank valve socket
US6481317B1 (en) Adjustable crowfoot device

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN YU

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
NENP Non-entry into the national phase

Ref country code: KR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA