US20020089274A1 - Release mechanism for telescoping slide assembly - Google Patents
Release mechanism for telescoping slide assembly Download PDFInfo
- Publication number
- US20020089274A1 US20020089274A1 US09/820,752 US82075201A US2002089274A1 US 20020089274 A1 US20020089274 A1 US 20020089274A1 US 82075201 A US82075201 A US 82075201A US 2002089274 A1 US2002089274 A1 US 2002089274A1
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- US
- United States
- Prior art keywords
- pivot
- release mechanism
- stop
- locking lugs
- affixed
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/50—Safety devices or the like for drawers
- A47B88/57—Safety devices or the like for drawers preventing complete withdrawal of the drawer
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/40—Sliding drawers; Slides or guides therefor
- A47B88/483—Sliding drawers; Slides or guides therefor with single extensible guides or parts
- A47B88/487—Sliding drawers; Slides or guides therefor with single extensible guides or parts with rollers, ball bearings, wheels, or the like
Definitions
- the present invention relates to the field of slides and more particularly to an improved release mechanism for telescoping slide assembly.
- a slide is widely employed to enable the relative movement of a drawer and a cabinet, a computer desk and a keyboard shelf, or the like.
- a conventional slide comprises an outer member and an inner member.
- outer member is fixedly attached to the wall of cabinet and inner member is fixedly attached to the side of drawer.
- inner member is fixedly attached to the side of drawer.
- a ball bearing mechanism is employed to interconnect above two members in a rolling relation.
- inner member may coaxially move respect to outer member.
- a stop mechanism such as latch is employed to lock the slide in a fully extended position when the slide reaches its maximum extension. At this time, inner and outer members are held in place by the latch.
- the lever is implemented as an elongate steel spring.
- One end of lever is at the extension direction of slide, while the other end is coupled to a latch inside the slide.
- user may depress the outer end of lever to lift a locking pin of latch at the other end by utilizing the well known lever principle.
- a locking of a load supported by slide is made possible through a pivot member at an inner end of slide when the load is pulled to an outer end of slide.
- a release mechanism for telescoping slide including an outer member and an inner member.
- the mechanism comprises a stop member affixed to the outer member for stopping further outward movement of the inner member when reaching a predetermined use position; a connection member having an elongate shape and slidably mounted on the inner member, one access end of the connection member being open at an outer end of the slide, while the other end being formed as at least one rear cam; a pivot member including a pivot pin mounted on the inner member such that the pivot member is pivotal about the pivot pin, the pivot member being maintained either in a locked storage position or operable to pivot to an unlocked position by the activation of the rear cam of the connection member, a front surface, and a rear surface, both the front and the rear surfaces either being blocked by the stop member when the inner member moves to the use position, thus prohibiting a relative movement between the inner and the outer members, or when the pivot member is unlocked by the activated the rear cam the front and the rear surfaces being disengage
- FIG. 1 is an exploded view of a first preferred embodiment of release mechanism mounted on a telescoping slide assembly according to the invention
- FIG. 2 is a perspective view of FIG. 1 illustrating a manual operation of the release mechanism adjacent the front side of drawer;
- FIG. 3A is a side view illustrating the engagement of connection member and pivot member in a locked storage position
- FIG. 3B is a view similar to FIG. 3A where inner member is about to reach a fully extended use position with pivot member about to pass a stop member;
- FIG. 3C is a view similar to FIG. 3A where inner member has reached the use position with pivot member and stop member engaged to stop a relative movement between inner and outer members;
- FIG. 3D is a view similar to FIG. 3A where pivot member is unlocked by the activated rear cam of connection member, resulting in a disengagement of inner and outer members;
- FIG. 4 is a second preferred embodiment of release mechanism mounted on a telescoping slide assembly according to the invention.
- FIG. 5 is a third preferred embodiment of release mechanism mounted on a telescoping slide assembly according to the invention.
- FIGS. 1 to 3 there is shown a telescoping slide assembly incorporating a release mechanism constructed in accordance with the invention.
- Slide comprises an outer member 20 and an inner member 30 .
- This embodiment is implemented in a drawer and a cabinet combination wherein two pair of slides are employed to effectuate a relative sliding movement therebetween.
- Outer member 20 is affixed to the wall of cabinet.
- Inner member 30 is affixed to either side of drawer.
- Inner member 30 is slidably received in outer member 20 .
- a ball bearing mechanism e.g., ball bearings 40
- inner member 30 may coaxially move respect to outer member 20 .
- the release mechanism of the invention may be activated so as to effect a locking of drawer when drawer is pulled to the fully extended use position.
- Stop member 50 is affixed to outer member 20 for stopping further outward movement of inner member 30 when reaching a predetermined use position.
- Connection member 60 has an elongate shape and is mounted on inner wall of inner member 30 . Connection member 60 may slide back and forth lengthwise on inner member 30 .
- One end 61 of connection member 60 is open at an outer end of slide for ease of access by hand, while the other end is formed as at least one rear cam 62 .
- Pivot member 70 comprises a pivot pin 72 mounted on inner wall of inner member 30 such that pivot member 70 may pivot about pin 72 . Pivot member 70 is maintained in a locked storage position as shown in FIG. 3A.
- Pivot member 70 is also possible of pivoting to an unlocked position by the activation of rear cam 62 of connection member 60 (FIG. 3D). Pivot member 70 further comprises a front surface 71 a and a rear surface 71 b which are blocked by stop member 50 when inner member 30 moves to a use position (FIG. 3C). Thus a relative movement between inner member 30 and outer member 20 is prohibited. To the contrary, when pivot member 70 is unlocked by the activated rear cam 62 , the front and rear surfaces 71 a and 71 b are disengaged from stop member 50 , thus unlocking inner member 30 and stop member 50 (FIG. 3D). Then user may push drawer into cabinet or remove drawer from cabinet.
- Elastic member 80 is mounted on inner member 30 and biased to maintain pivot member 70 in any of above positions. It is apparent of being possible for the provision of a single front surface 71 a on pivot member 70 in another implementation. Likewise, inner member 30 is blocked by the front surface 71 a from further movement when reaching the predetermined use position. Alternatively, when pivot member 70 is unlocked by the activated rear cam 62 , the front surface 71 a is disengaged from stop member 50 , thus unlocking inner member 30 and stop member 50 (FIG. 3D). Then user may remove drawer from cabinet.
- stop member 50 is an independent member mounted on outer member 20 , i.e., on the inner wall of outer member 20 facing pivot member 70 .
- Stop member 50 comprises a pair of spaced front first locking lugs 51 a and a pair of spaced rear second locking lugs 51 b .
- Such locking lugs 51 a and 51 b are corresponding to surfaces 71 a and 71 b of pivot member 70 respectively.
- surfaces 71 a and 71 b of pivot member 70 are situated between and stopped by locking lugs 51 a and 51 b of stop member 50 , thus stopping a further movement of inner member 30 .
- surfaces 71 a and 71 b are perpendicular to locking lugs 51 a and 51 b respectively.
- surfaces 71 a and 71 b and locking lugs 51 a and 51 b are perpendicular to the sliding direction of inner member 30 , thereby ensuring a sliding secure relationship between inner member 30 and outer member 20 .
- locking lugs 51 a and 51 b are formed by punching on inner wall 21 of outer member 20 .
- the projecting direction of each of locking lugs 51 a and 51 b is toward pivot member 70 . It is unnecessary to additionally manufacture an independent stop member 50 as shown in FIG. 1. Thus, the number of components is further reduced.
- connection member 60 is an elongate thin member 60 which may be formed by punching on a suitable metal.
- an enlargement 63 is mounted on outer end 61 of connection member 60 .
- enlargement 63 is formed of plastic material and is clung to threadedly secure to the outer end 61 .
- the provision of enlargement 63 may facilitate user to push or pull connection member 60 .
- a plurality of hooks 32 a and 32 b are provided on inner wall 31 of inner member 30 .
- the same number of tabs (e.g., 64 a and 64 b ) are provided on a side of connection member 60 .
- connection member 60 may slide on inner wall 31 of inner member 30 back and forth. Then fixedly attach both ends of elastic member 80 to inner member 30 and connection member 60 respectively for ensuring a sliding secure relationship between connection member 60 and inner member 30 .
- elastic member 80 is formed of flexible metal wire and has one end affixed to inner member 30 and the other end affixed to connection member 60 .
- a slide travel limitation mechanism is provided. As shown, an elongate opening 34 is provided near the outer end of inner member 30 and a locking pin 65 is provided on connection member 60 . Locking pin 65 is slidably received in opening 34 .
- connection member 60 As such, a uniform elastic force provided by elastic member 80 is exerted on connection member 60 when outer member 20 is pulled outwardly. Also, connection member 60 is prevented from further moving when outer member 30 has reached the use position because the confinement of locking pin 65 in opening 34 . This can avoid any potential irregularity.
- a front cam 66 is provided on the inner end of connection member 60 adjacent rear cam 62 for transmitting the elastic force of elastic member 80 to pivot member 70 through connection member 60 . Front cam 66 is urged against the front surface 71 a of pivot member 70 for pushing pivot member 70 to the locked (i.e., storage) position (FIG. 3A).
- connection member 60 is an elongate thin member, it is preferred to suitably increase the thickness of pivot member 70 for avoiding front cam 66 from interfering the engagement of the front surface 71 a and second locking lug 51 b of stop member 50 . This may also increase the area of the front surface 71 a .
- elastic member 80 may be implemented as a helical spring in the second embodiment (FIG. 4) rather than a metal wire.
- Connection member 60 is implemented as a steel wire assembly 67 rather than a thin elongate member.
- the steel wire assembly 67 comprises an outer end 61 for ease of access by hand and an enlargement 63 .
- the steel wire assembly 67 comprises a projected rear cam 62 a formed by punching thereon near the inner end and an upward bent inner end 68 .
- Elastic member 80 is also reconfigured to have its central portion affixed to inner member 30 and two ends 81 a and 81 b biased against pivot member 70 for maintaining pivot member 70 at a locked storage position and the upward bent inner end 68 for maintaining the steel wire assembly in a ready position (i.e., pivot member 70 is not activated) respectively.
- slide may comprise inner member 30 , outer member 20 and intermediate member.
- inner member 30 may comprise inner member 30 , outer member 20 and intermediate member.
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- Drawers Of Furniture (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
Description
- 1. Field of Invention
- The present invention relates to the field of slides and more particularly to an improved release mechanism for telescoping slide assembly.
- 2. Related Art
- Conventionally, a slide is widely employed to enable the relative movement of a drawer and a cabinet, a computer desk and a keyboard shelf, or the like. A conventional slide comprises an outer member and an inner member. For example in the drawer and cabinet configuration, outer member is fixedly attached to the wall of cabinet and inner member is fixedly attached to the side of drawer. Typically, a ball bearing mechanism is employed to interconnect above two members in a rolling relation. Hence, inner member may coaxially move respect to outer member. Thus drawer is permitted to remove to its maximum extension or retract into the cabinet. Conventionally, a stop mechanism such as latch is employed to lock the slide in a fully extended position when the slide reaches its maximum extension. At this time, inner and outer members are held in place by the latch. Hence, drawer supported by inner member is held in this place. Further, it is possible to detach drawer from cabinet by manually manipulating the latch if desired. One such latch based locking mechanism for slide is disclosed in U.S. Pat. Nos. 5,405,195 and 5,961,193. Each of both disclosed a release mechanism situated on the front of slide controllable to manipulate the rear of slide. It comprises a lever for unlocking a number of slides in a locked position. The lever is implemented as an elongate steel spring. One end of lever is at the extension direction of slide, while the other end is coupled to a latch inside the slide. Hence, user may depress the outer end of lever to lift a locking pin of latch at the other end by utilizing the well known lever principle. Thus the locked slide is disengaged from lever, resulting in an unlocking of slide. However, the previous design suffered from several disadvantages. For example, user may unintentionally press the outer end of lever to activate the unlocking of slide due to the open, manual pressing design. Also, it is complex in structure. Such previous design is primarily suitable to slides installed under a load (e.g., drawer), not for slides affixed to the sides of load. Moreover, such previous design is too bulky to install in many current cabinets.
- It is therefore an object of the present invention to provide a release mechanism which is activated by pulling or pushing. A locking of a load supported by slide is made possible through a pivot member at an inner end of slide when the load is pulled to an outer end of slide. Alternatively, unlock the release mechanism for removing the load from a cabinet or pushing the load completely into the cabinet.
- It is another object of the present invention to provide a simple and compact release mechanism for telescoping slide assembly.
- The advantages of the present invention are realized by providing a release mechanism for telescoping slide including an outer member and an inner member. The mechanism comprises a stop member affixed to the outer member for stopping further outward movement of the inner member when reaching a predetermined use position; a connection member having an elongate shape and slidably mounted on the inner member, one access end of the connection member being open at an outer end of the slide, while the other end being formed as at least one rear cam; a pivot member including a pivot pin mounted on the inner member such that the pivot member is pivotal about the pivot pin, the pivot member being maintained either in a locked storage position or operable to pivot to an unlocked position by the activation of the rear cam of the connection member, a front surface, and a rear surface, both the front and the rear surfaces either being blocked by the stop member when the inner member moves to the use position, thus prohibiting a relative movement between the inner and the outer members, or when the pivot member is unlocked by the activated the rear cam the front and the rear surfaces being disengaged from the stop member, thus unlocking the inner member and the stop member; and an elastic member mounted on the inner member and biased to maintain the pivot member in the use, the locked storage, or the unlocked position.
- Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
- The present invention will become fully understood from the detailed description given hereinbelow illustration only, and thus are not limitative of the present invention, and wherein:
- FIG. 1 is an exploded view of a first preferred embodiment of release mechanism mounted on a telescoping slide assembly according to the invention;
- FIG. 2 is a perspective view of FIG. 1 illustrating a manual operation of the release mechanism adjacent the front side of drawer;
- FIG. 3A is a side view illustrating the engagement of connection member and pivot member in a locked storage position;
- FIG. 3B is a view similar to FIG. 3A where inner member is about to reach a fully extended use position with pivot member about to pass a stop member;
- FIG. 3C is a view similar to FIG. 3A where inner member has reached the use position with pivot member and stop member engaged to stop a relative movement between inner and outer members;
- FIG. 3D is a view similar to FIG. 3A where pivot member is unlocked by the activated rear cam of connection member, resulting in a disengagement of inner and outer members;
- FIG. 4 is a second preferred embodiment of release mechanism mounted on a telescoping slide assembly according to the invention; and
- FIG. 5 is a third preferred embodiment of release mechanism mounted on a telescoping slide assembly according to the invention.
- Referring to FIGS.1 to 3, there is shown a telescoping slide assembly incorporating a release mechanism constructed in accordance with the invention. Slide comprises an
outer member 20 and aninner member 30. This embodiment is implemented in a drawer and a cabinet combination wherein two pair of slides are employed to effectuate a relative sliding movement therebetween.Outer member 20 is affixed to the wall of cabinet.Inner member 30 is affixed to either side of drawer.Inner member 30 is slidably received inouter member 20. Typically, a ball bearing mechanism (e.g., ball bearings 40) is employed to interconnect inner andouter members inner member 30 may coaxially move respect toouter member 20. When drawer is pulled out to its maximum extension, slide is also extended to a fully extended use position. Alternatively, user may retract the drawer into cabinet. Hence, the release mechanism of the invention may be activated so as to effect a locking of drawer when drawer is pulled to the fully extended use position. Alternatively, unlockinner member 30 andouter member 20 for removing drawer from cabinet or pushing drawer completely into the cabinet. The components of the release mechanism are as follows: -
Stop member 50 is affixed toouter member 20 for stopping further outward movement ofinner member 30 when reaching a predetermined use position.Connection member 60 has an elongate shape and is mounted on inner wall ofinner member 30.Connection member 60 may slide back and forth lengthwise oninner member 30. Oneend 61 ofconnection member 60 is open at an outer end of slide for ease of access by hand, while the other end is formed as at least onerear cam 62.Pivot member 70 comprises apivot pin 72 mounted on inner wall ofinner member 30 such thatpivot member 70 may pivot aboutpin 72.Pivot member 70 is maintained in a locked storage position as shown in FIG. 3A.Pivot member 70 is also possible of pivoting to an unlocked position by the activation ofrear cam 62 of connection member 60 (FIG. 3D).Pivot member 70 further comprises afront surface 71 a and arear surface 71 b which are blocked bystop member 50 wheninner member 30 moves to a use position (FIG. 3C). Thus a relative movement betweeninner member 30 andouter member 20 is prohibited. To the contrary, whenpivot member 70 is unlocked by the activatedrear cam 62, the front andrear surfaces stop member 50, thus unlockinginner member 30 and stop member 50 (FIG. 3D). Then user may push drawer into cabinet or remove drawer from cabinet.Elastic member 80 is mounted oninner member 30 and biased to maintainpivot member 70 in any of above positions. It is apparent of being possible for the provision of a singlefront surface 71 a onpivot member 70 in another implementation. Likewise,inner member 30 is blocked by thefront surface 71 a from further movement when reaching the predetermined use position. Alternatively, whenpivot member 70 is unlocked by the activatedrear cam 62, thefront surface 71 a is disengaged fromstop member 50, thus unlockinginner member 30 and stop member 50 (FIG. 3D). Then user may remove drawer from cabinet. - In the embodiment, stop
member 50 is an independent member mounted onouter member 20, i.e., on the inner wall ofouter member 20 facingpivot member 70.Stop member 50 comprises a pair of spaced front first locking lugs 51 a and a pair of spaced rear second locking lugs 51 b. Such locking lugs 51 a and 51 b are corresponding tosurfaces pivot member 70 respectively. Wheninner member 30 is about to reach the fully extended use position (FIG. 3B),pivot member 70 is approaching lockinglug 51 b. Then pivotmember 70passes locking lug 51 b to reach the use position (FIG. 3C). At this time, surfaces 71 a and 71 b ofpivot member 70 are situated between and stopped by lockinglugs stop member 50, thus stopping a further movement ofinner member 30. Preferably, in the position shown in FIG. 3A or FIG. 3C, surfaces 71 a and 71 b are perpendicular to lockinglugs inner member 30, thereby ensuring a sliding secure relationship betweeninner member 30 andouter member 20. - In another implementation of
stop member 50, locking lugs 51 a and 51 b are formed by punching oninner wall 21 ofouter member 20. The projecting direction of each of locking lugs 51 a and 51 b is towardpivot member 70. It is unnecessary to additionally manufacture anindependent stop member 50 as shown in FIG. 1. Thus, the number of components is further reduced. - In the first embodiment,
connection member 60 is an elongatethin member 60 which may be formed by punching on a suitable metal. As shown in FIG. 1, anenlargement 63 is mounted onouter end 61 ofconnection member 60. Preferably,enlargement 63 is formed of plastic material and is clung to threadedly secure to theouter end 61. The provision ofenlargement 63 may facilitate user to push or pullconnection member 60. Further, a plurality ofhooks inner wall 31 ofinner member 30. Furthermore, the same number of tabs (e.g., 64 a and 64 b) are provided on a side ofconnection member 60.Tabs hooks connection member 60 oninner member 30. Thusconnection member 60 may slide oninner wall 31 ofinner member 30 back and forth. Then fixedly attach both ends ofelastic member 80 toinner member 30 andconnection member 60 respectively for ensuring a sliding secure relationship betweenconnection member 60 andinner member 30. In the embodiment,elastic member 80 is formed of flexible metal wire and has one end affixed toinner member 30 and the other end affixed toconnection member 60. A slide travel limitation mechanism is provided. As shown, anelongate opening 34 is provided near the outer end ofinner member 30 and alocking pin 65 is provided onconnection member 60. Lockingpin 65 is slidably received inopening 34. As such, a uniform elastic force provided byelastic member 80 is exerted onconnection member 60 whenouter member 20 is pulled outwardly. Also,connection member 60 is prevented from further moving whenouter member 30 has reached the use position because the confinement of lockingpin 65 inopening 34. This can avoid any potential irregularity. Afront cam 66 is provided on the inner end ofconnection member 60 adjacentrear cam 62 for transmitting the elastic force ofelastic member 80 to pivotmember 70 throughconnection member 60.Front cam 66 is urged against thefront surface 71 a ofpivot member 70 for pushingpivot member 70 to the locked (i.e., storage) position (FIG. 3A). Sinceconnection member 60 is an elongate thin member, it is preferred to suitably increase the thickness ofpivot member 70 for avoidingfront cam 66 from interfering the engagement of thefront surface 71 a andsecond locking lug 51 b ofstop member 50. This may also increase the area of thefront surface 71 a. Moreover,elastic member 80 may be implemented as a helical spring in the second embodiment (FIG. 4) rather than a metal wire. - Referring to FIG. 5, a third embodiment of the invention is shown.
Connection member 60 is implemented as asteel wire assembly 67 rather than a thin elongate member. Likewise, thesteel wire assembly 67 comprises anouter end 61 for ease of access by hand and anenlargement 63. Additionally, thesteel wire assembly 67 comprises a projectedrear cam 62 a formed by punching thereon near the inner end and an upward bentinner end 68.Elastic member 80 is also reconfigured to have its central portion affixed toinner member 30 and two ends 81 a and 81 b biased againstpivot member 70 for maintainingpivot member 70 at a locked storage position and the upward bentinner end 68 for maintaining the steel wire assembly in a ready position (i.e.,pivot member 70 is not activated) respectively. - The invention being thus described, it will be obvious that the same may be varied in many ways. For example, slide may comprise
inner member 30,outer member 20 and intermediate member. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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TW090200189U TW489618U (en) | 2001-01-05 | 2001-01-05 | Front-pulling type latch mechanism for rail |
TW90200189 | 2001-01-05 | ||
TW90200189U | 2001-01-05 |
Publications (2)
Publication Number | Publication Date |
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US6412891B1 US6412891B1 (en) | 2002-07-02 |
US20020089274A1 true US20020089274A1 (en) | 2002-07-11 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/820,752 Expired - Lifetime US6412891B1 (en) | 2001-01-05 | 2001-03-30 | Release mechanism for telescoping slide assembly |
Country Status (4)
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US (1) | US6412891B1 (en) |
JP (1) | JP3079443U (en) |
DE (1) | DE20106081U1 (en) |
TW (1) | TW489618U (en) |
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- 2001-04-06 DE DE20106081U patent/DE20106081U1/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
DE20106081U1 (en) | 2001-06-28 |
TW489618U (en) | 2002-06-01 |
JP3079443U (en) | 2001-08-17 |
US6412891B1 (en) | 2002-07-02 |
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