US20180058790A1 - Rifle with noise damper - Google Patents

Rifle with noise damper Download PDF

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Publication number
US20180058790A1
US20180058790A1 US15/789,287 US201715789287A US2018058790A1 US 20180058790 A1 US20180058790 A1 US 20180058790A1 US 201715789287 A US201715789287 A US 201715789287A US 2018058790 A1 US2018058790 A1 US 2018058790A1
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United States
Prior art keywords
rifle
over
barrel
noise damper
molded
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.)
Abandoned
Application number
US15/789,287
Inventor
Francisco Casas Salva
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Gamo Outdoor SL
Original Assignee
Gamo Outdoor SL
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Publication date
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Application filed by Gamo Outdoor SL filed Critical Gamo Outdoor SL
Priority to US15/789,287 priority Critical patent/US20180058790A1/en
Publication of US20180058790A1 publication Critical patent/US20180058790A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/30—Silencers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/02—Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/32—Muzzle attachments or glands
    • F41A21/325—Mountings for muzzle attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/02—Foresights
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • a rifle comprising a barrel, a bore within the barrel, and a noise damper, wherein the noise damper is over-molded or over-injected on the barrel so that the barrel and noise damper form a single part.
  • European Patent No 1247057, of 2000, in the name of the company HECKLER & KOCH GMBH is known, which discloses a coupling device to secure a silencer on the barrel of a portable firearm that comprises a fastening for securing the silencer on the barrel of the portable firearm, where the silencer essentially has the form of a tube, with a coupling bracket fitted to the rear end of the silencer, and a barrel mouth that adjusts to the coupling bracket, on which the coupling bracket can be secured, and the barrel mouth presents a non-round configuration, where a supplementary part is installed on the coupling bracket on the side opposite the first and which can rotate with a contra-form complementary to the non-round configuration, so that the supplementary part can be secured to the barrel mouth only in one angular position.
  • the silencer, together with the coupling bracket, is positioned so that it can rotate with respect to the supplementary part, and a blocking device is planned for inclusion, which will immobilize the silencer, together with the coupling bracket on the supplementary part, at a chosen angular position, without it being able to rotate.
  • European Patent No 1117970 of 2000 discloses a coupling device for securing a silencer onto the barrel of a portable firearm including a fastening for securing the silencer onto the barrel of the portable firearm with a retention projection, which is positioned on the silencer, and which presents an orifice that centers a contra-projection, which is positioned on the barrel and which presents centered adjustment surfaces that adjust in the orifice, and a pin that can be dismounted for securing the retention projection on the contra-projection, so that the orifice and the adjustment surfaces are positioned centrally in a consecutive fashion in a seating zone, and with which at least one expansion space is provided between the two axial ends of the seating zone.
  • European Patent 0772758 dated 1995 is also known, in the name of Mr, Bernard Louvat, which discloses a silencer for a clay-pigeon or sports shotgun. It comprises a tubular body that adapts over the barrel(s) of the firearm and has a ring-shaped decompression chamber behind the tubular body, together with a series of internal transversal baffles held in place by separation parts, and includes orifices that allow the lead shot to pass through and wad evacuation.
  • the silencer is adaptable to all calibers of clay-pigeon and sports shotguns and rifles, single or double-barrel, side-by-side or over/under, together with gauge 12 or 14 garden rifles.
  • This invention is a considerable advance in the sporting and fire rifles sector because it increases the performance of the firearm and reduces noise.
  • the prior art typically requires mechanisms to couple the noise damper to the barrel.
  • the coupling must provide stability (no movement) as well as firing reliability. In other words, it has to fit and, at the same time, remain calibrated with the front and rear sights centered. This is a problem, since centering is required each time the noise damper is coupled to the barrel.
  • centering of the sights is not necessary in the exemplary rifle disclosed herein in that the front and rear sights are always centered because the front sight is fixed to the noise damper, which is over-molded or over-injected onto the barrel.
  • the noise damper also has an improved noise damper insulating mechanism.
  • a series of loose parts are employed in noise dampers, which are then generally wrapped in cotton or similar materials.
  • the exemplary rifle disclosed herein includes a noise damper comprising at least two parts that define an acoustic labyrinth, which is an evident saving from the economic point of view, since the acoustic labyrinth is very easy to install and manufacture. This feature also offers a significant technical improvement, because when the parts are coupled inside the barrel, they correctly center the exit pathway for the bullet or pellet.
  • An exemplary embodiment described herein provides an sporting or fire rifle comprising a barrel, a bore within the barrel, and a noise damper, wherein the noise damper is over-molded or over-injected on the barrel so that the barrel and noise dampener form a single, integral part.
  • FIG. 1 is a side view of an sporting or fire rifle according to the exemplary embodiment of this invention
  • FIG. 2 is a cross-sectional view taken through line II-II of FIG. 1 .
  • FIG. 3 is a cross-sectional view taken through line III-III of FIG. 2 .
  • FIG. 4 illustrates two parts of the noise damper of the rifle of FIGS. 1 through 3 .
  • FIG. 1 illustrates an sporting or fire rifle comprising a barrel 1 with a bore therein, a sight 6 , and a noise damper 3 that has been over-molded or over-injected on the barrel 1 .
  • FIG. 2 illustrates the barrel 1 , the noise damper 3 , two parts 4 and 5 of the noise damper 3 , and a cover 10 .
  • FIG. 3 shows the barrel 1 , the noise damper 3 , the cover 10 , the sight 6 and an over-molded or over-injected housing 7 that encloses the parts 4 and 5 .
  • FIG. 4 shows the parts 4 and 5 , each comprising partitions 8 and neckings 9 .
  • the noise damper 3 is over-molded or over-injected on the barrel 1 .
  • the noise damper 3 and the barrel 1 form a single, integral part.
  • the two parts 4 and 5 of the noise damper 3 within the housing 7 define an insulating mechanism of the noise damper 3 by defining an acoustic labyrinth that ends with the cover 10 and provides damping of the firing noise.
  • the partitions 8 and the neckings 9 on the partitions 8 define a space or passage between the two parts 4 and 5 as an extension of the bore within the barrel 1 .
  • the sight 6 can be fixed onto the noise damper 3 , as illustrated in FIG. 1 .

Abstract

A rifle barrel having a sound suppressor and a rifle comprising such a barrel. Material disposed over the rifle barrel and extending longitudinally and distally from a proximal end of the rifle barrel defines a housing, The housing surrounds at least a majority of the sound suppressing element, which is connected to the rifle barrel solely by containment within the housing. The sound suppressing comprises an acoustic labyrinth formed by a plurality of components disposed together along a longitudinal plane coextensive with an axis of the rifle barrel.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This application is a continuation application of U.S. patent application. Ser. No. 14/844,232, filed Sep. 3, 2015, which is a divisional application of U.S. patent application Ser. No. 14/259,809 filed Apr. 23, 2014 and issued as U.S. Pat. No. 9,157,692 on Oct. 13, 2015, which is a divisional application of U.S. patent application Ser. No. 13/564,868, filed Aug. 2, 2012 and issued as U.S. Pat. No. 9,109,851 on Aug. 18, 2015, which is a continuation of U.S. application Ser. No. 12/522,659, filed Nov. 9, 2009 and issued as U.S. Pat. No. 8,261,651 on Sep. 11, 2012, which is a National Stage of International Application No. PCT/IB2007/054413, filed Oct. 31, 2007, which claims the benefit of Spanish Patent Application No, U 200700101, filed Jan. 12, 2007, the disclosures of all of the foregoing of which are incorporated herein by reference.
    • BACKGROUND
  • A rifle comprising a barrel, a bore within the barrel, and a noise damper, wherein the noise damper is over-molded or over-injected on the barrel so that the barrel and noise damper form a single part.
  • Various silencers and mechanisms to couple the silencer to the barrel of a carbine or pistol are known in the state of the art.
  • For example, European Patent No 1247057, of 2000, in the name of the company HECKLER & KOCH GMBH is known, which discloses a coupling device to secure a silencer on the barrel of a portable firearm that comprises a fastening for securing the silencer on the barrel of the portable firearm, where the silencer essentially has the form of a tube, with a coupling bracket fitted to the rear end of the silencer, and a barrel mouth that adjusts to the coupling bracket, on which the coupling bracket can be secured, and the barrel mouth presents a non-round configuration, where a supplementary part is installed on the coupling bracket on the side opposite the first and which can rotate with a contra-form complementary to the non-round configuration, so that the supplementary part can be secured to the barrel mouth only in one angular position. The silencer, together with the coupling bracket, is positioned so that it can rotate with respect to the supplementary part, and a blocking device is planned for inclusion, which will immobilize the silencer, together with the coupling bracket on the supplementary part, at a chosen angular position, without it being able to rotate.
  • The same company also owns European Patent No 1117970 of 2000, which discloses a coupling device for securing a silencer onto the barrel of a portable firearm including a fastening for securing the silencer onto the barrel of the portable firearm with a retention projection, which is positioned on the silencer, and which presents an orifice that centers a contra-projection, which is positioned on the barrel and which presents centered adjustment surfaces that adjust in the orifice, and a pin that can be dismounted for securing the retention projection on the contra-projection, so that the orifice and the adjustment surfaces are positioned centrally in a consecutive fashion in a seating zone, and with which at least one expansion space is provided between the two axial ends of the seating zone.
  • Lastly, European Patent 0772758 dated 1995 is also known, in the name of Mr, Bernard Louvat, which discloses a silencer for a clay-pigeon or sports shotgun. It comprises a tubular body that adapts over the barrel(s) of the firearm and has a ring-shaped decompression chamber behind the tubular body, together with a series of internal transversal baffles held in place by separation parts, and includes orifices that allow the lead shot to pass through and wad evacuation. The silencer is adaptable to all calibers of clay-pigeon and sports shotguns and rifles, single or double-barrel, side-by-side or over/under, together with gauge 12 or 14 garden rifles.
    • BRIEF DESCRIPTION OF THE INVENTION
  • This invention is a considerable advance in the sporting and fire rifles sector because it increases the performance of the firearm and reduces noise.
  • Economic advantages of the invention arise from a noise damper that is over-molded or over-injected on the barrel of an sporting or fire rifle so that the barrel and noise damper are a single integral assembly.
  • In view of the noise damper being manufactured by over-molding or over the invention also offers significant economic advantages in terms of the production of barrels with noise dampers, since barrels and their noise dampers are usually two independent parts.
  • As discussed above, the prior art typically requires mechanisms to couple the noise damper to the barrel. The coupling must provide stability (no movement) as well as firing reliability. In other words, it has to fit and, at the same time, remain calibrated with the front and rear sights centered. This is a problem, since centering is required each time the noise damper is coupled to the barrel. In contrast, centering of the sights is not necessary in the exemplary rifle disclosed herein in that the front and rear sights are always centered because the front sight is fixed to the noise damper, which is over-molded or over-injected onto the barrel.
  • The noise damper also has an improved noise damper insulating mechanism. Traditionally, a series of loose parts are employed in noise dampers, which are then generally wrapped in cotton or similar materials. The exemplary rifle disclosed herein includes a noise damper comprising at least two parts that define an acoustic labyrinth, which is an evident saving from the economic point of view, since the acoustic labyrinth is very easy to install and manufacture. This feature also offers a significant technical improvement, because when the parts are coupled inside the barrel, they correctly center the exit pathway for the bullet or pellet.
  • An exemplary embodiment described herein provides an sporting or fire rifle comprising a barrel, a bore within the barrel, and a noise damper, wherein the noise damper is over-molded or over-injected on the barrel so that the barrel and noise dampener form a single, integral part.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • In order to facilitate the description, the present description is accompanied by four sheets of drawings that show an exemplary embodiment, which is cited as a non-limiting example of the scope of the present invention:
  • FIG. 1 is a side view of an sporting or fire rifle according to the exemplary embodiment of this invention,
  • FIG. 2 is a cross-sectional view taken through line II-II of FIG. 1.
  • FIG. 3 is a cross-sectional view taken through line III-III of FIG. 2.
  • FIG. 4 illustrates two parts of the noise damper of the rifle of FIGS. 1 through 3.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • FIG. 1 illustrates an sporting or fire rifle comprising a barrel 1 with a bore therein, a sight 6, and a noise damper 3 that has been over-molded or over-injected on the barrel 1.
  • FIG. 2 illustrates the barrel 1, the noise damper 3, two parts 4 and 5 of the noise damper 3, and a cover 10.
  • FIG. 3 shows the barrel 1, the noise damper 3, the cover 10, the sight 6 and an over-molded or over-injected housing 7 that encloses the parts 4 and 5.
  • Finally, FIG. 4 shows the parts 4 and 5, each comprising partitions 8 and neckings 9. In an exemplary embodiment, as shown in FIG. 1, the noise damper 3 is over-molded or over-injected on the barrel 1.
  • In this way, the noise damper 3 and the barrel 1 form a single, integral part.
  • As can be seen in the section of FIG. 2, the two parts 4 and 5 of the noise damper 3 within the housing 7 define an insulating mechanism of the noise damper 3 by defining an acoustic labyrinth that ends with the cover 10 and provides damping of the firing noise.
  • Upon assembling the parts 4 and 5, the partitions 8 and the neckings 9 on the partitions 8 define a space or passage between the two parts 4 and 5 as an extension of the bore within the barrel 1.
  • In an exemplary embodiment, the sight 6 can be fixed onto the noise damper 3, as illustrated in FIG. 1.
  • This disclosure describes a new spotting or fire rifle with a noise damper. The examples described here do not limit the present invention, which may have various applications and/or adaptations, all of which are within the scope of the following claims.

Claims (24)

What is claimed:
1. A rifle comprising a noise damper, the noise damper comprising an over-molded or over-injected structure having a barrel portion extending longitudinally from a proximal end of a barrel of the rifle and a housing portion extending longitudinally and distally from a muzzle end of the rifle barrel and a noise damper insert disposed within the housing portion of the structure, the noise damper coupled to the rifle barrel by a coupling that permits no movement between the noise damper housing portion and the rifle barrel, wherein the coupling structurally consists of the over-molded or over-injected structure disposed over the rifle barrel and extending to form the housing portion such that the over-molded or over-injected structure and the rifle barrel form a single, integral assembly.
2. The rifle of claim 1, further comprising a front sight fixed to the housing portion, the front sight configured to be always centered with a rear sight because of the noise damper over-molded or over-injected over the rifle barrel.
3. The rifle of claim 1, further comprising a cover on a distal end of the housing portion.
4. The rifle of claim 1, wherein the noise damper insert is disposed adjacent the muzzle end of the rifle barrel.
5. The rifle of claim 1, wherein the housing portion entirely surrounds the noise damper insert.
6. The rifle of claim 1, wherein noise damper insert has a plurality of partitions that at least partly define an acoustic labyrinth.
7. The rifle of claim 1, further comprising a cover on a distal end of the housing portion.
8. The rifle claim 1, further comprising a sight affixed to the housing portion.
9. The rifle of claim 8, wherein the sight is a front sight.
10. The rifle of claim 1, wherein a portion of the noise damper over-molded or over-injected over the rifle barrel is in direct contact with the rifle barrel.
11. The rifle of claim 1, wherein a portion of the noise damper over-molded or over-injected onto to rifle barrel is in direct contact with the rifle barrel.
12. The rifle of claim 1, wherein the noise damper insert comprises a plurality of parts assembled together.
13. The rifle of claim 12, wherein the plurality of parts defines a longitudinal central passage therebetween that comprises a longitudinal extension of a bore of the rifle barrel.
14. The rifle of claim 1, wherein the over-molded or over-injected structure has a relatively larger outside diameter in the housing portion and tapers to a relatively smaller outside diameter in the barrel portion.
15. The rifle of claim 14, wherein the over-molded or over-injected structure has a relatively thicker cross sectional thickness adjacent the muzzle end of the barrel and tapers to respective relatively thinner cross sectional thicknesses proximally and distally therefrom.
16. A rifle having a noise damper, the rifle comprising a product formed by a process comprising the steps of:
coupling a noise damper on a rifle barrel using a coupling that permits no movement between the noise damper and the rifle barrel, wherein the coupling structurally consists of an over-molded or over-injected structure having a barrel portion extending longitudinally from a proximal end of the rifle barrel and a housing portion extending longitudinally and distally from a muzzle end of the rifle barrel such that the over-molded or over-injected structure and the rifle barrel form an integral assembly, and
inserting a noise damper insert inside the housing portion such that the housing portion houses and radially surrounds at least a majority of the noise damper insert.
17. The rifle of claim 16, wherein the housing portion entirely surrounds the noise damper insert.
18. The rifle of claim 16, wherein a portion of the over-molded or over-injected material is in direct contact with the rifle barrel.
19. The rifle of claim 16, wherein the noise damper insert comprises a plurality of parts assembled together.
20. The rifle of claim 19, wherein the plurality of parts consists of two parts.
21. The rifle of claim 16, further comprising a front sight fixed to the housing portion, the front sight configured to be always centered with a rear sight because of the noise damper over-molded or over-injected over the rifle barrel.
22. The rifle of claim 16, wherein the noise damper insert has a plurality of partitions that at least partly define an acoustic labyrinth.
23. The rifle of claim 16, wherein the over-molded or over-injected structure has a relatively larger outside diameter in the housing portion and tapers to a relatively smaller outside diameter in the barrel portion.
24. The rifle of claim 23, wherein the over-molded or over-injected structure has a relatively thicker cross sectional thickness adjacent the muzzle end of the barrel and tapers to respective relatively thinner cross sectional thicknesses proximally and distally therefrom.
US15/789,287 2007-01-12 2017-10-20 Rifle with noise damper Abandoned US20180058790A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/789,287 US20180058790A1 (en) 2007-01-12 2017-10-20 Rifle with noise damper

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
ESU200700101 2007-01-12
ES200700101U ES1065590Y (en) 2007-01-12 2007-01-12 FIRE OR SPORTS GUN WITH SILENCER
PCT/IB2007/054413 WO2008084345A1 (en) 2007-01-12 2007-10-31 Fire arm or sports gun with silencer
US52265909A 2009-11-09 2009-11-09
US13/564,868 US9109851B2 (en) 2007-01-12 2012-08-02 Process of manufacturing a rifle to have an integral sound suppressor
US14/259,809 US9157692B2 (en) 2007-01-12 2014-04-23 Rifle with a noise damper
US14/844,232 US20150377576A1 (en) 2007-01-12 2015-09-03 Rifle with noise damper
US15/789,287 US20180058790A1 (en) 2007-01-12 2017-10-20 Rifle with noise damper

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US14/844,232 Continuation US20150377576A1 (en) 2007-01-12 2015-09-03 Rifle with noise damper

Publications (1)

Publication Number Publication Date
US20180058790A1 true US20180058790A1 (en) 2018-03-01

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ID=38512312

Family Applications (5)

Application Number Title Priority Date Filing Date
US12/522,659 Active 2028-02-18 US8261651B2 (en) 2007-01-12 2007-10-31 Air or fire rifle with noise dampener
US13/564,868 Active US9109851B2 (en) 2007-01-12 2012-08-02 Process of manufacturing a rifle to have an integral sound suppressor
US14/259,809 Active US9157692B2 (en) 2007-01-12 2014-04-23 Rifle with a noise damper
US14/844,232 Abandoned US20150377576A1 (en) 2007-01-12 2015-09-03 Rifle with noise damper
US15/789,287 Abandoned US20180058790A1 (en) 2007-01-12 2017-10-20 Rifle with noise damper

Family Applications Before (4)

Application Number Title Priority Date Filing Date
US12/522,659 Active 2028-02-18 US8261651B2 (en) 2007-01-12 2007-10-31 Air or fire rifle with noise dampener
US13/564,868 Active US9109851B2 (en) 2007-01-12 2012-08-02 Process of manufacturing a rifle to have an integral sound suppressor
US14/259,809 Active US9157692B2 (en) 2007-01-12 2014-04-23 Rifle with a noise damper
US14/844,232 Abandoned US20150377576A1 (en) 2007-01-12 2015-09-03 Rifle with noise damper

Country Status (10)

Country Link
US (5) US8261651B2 (en)
EP (1) EP2112452B1 (en)
CN (2) CN104913684A (en)
AT (1) ATE465384T1 (en)
DE (1) DE602007006059C5 (en)
ES (2) ES1065590Y (en)
HK (1) HK1133919A1 (en)
MX (1) MX2009007214A (en)
RU (1) RU2438086C2 (en)
WO (1) WO2008084345A1 (en)

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US9109851B2 (en) 2015-08-18
US20100058922A1 (en) 2010-03-11
DE602007006059D1 (en) 2010-06-02
EP2112452A1 (en) 2009-10-28
ES1065590U (en) 2007-10-01
CN104913684A (en) 2015-09-16
US20150159971A1 (en) 2015-06-11
EP2112452B1 (en) 2010-04-21
RU2009123590A (en) 2011-02-20
WO2008084345A1 (en) 2008-07-17
US8261651B2 (en) 2012-09-11
DE602007006059C5 (en) 2016-02-18
US20150377576A1 (en) 2015-12-31
RU2438086C2 (en) 2011-12-27
US20130180149A1 (en) 2013-07-18
ES2345012T3 (en) 2010-09-13
MX2009007214A (en) 2009-07-10
ATE465384T1 (en) 2010-05-15
CN101663556A (en) 2010-03-03
ES1065590Y (en) 2008-01-01
HK1133919A1 (en) 2010-04-09
US9157692B2 (en) 2015-10-13

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