WO2008073133A1 - Jewelry clasp - Google Patents
Jewelry clasp Download PDFInfo
- Publication number
- WO2008073133A1 WO2008073133A1 PCT/US2007/004988 US2007004988W WO2008073133A1 WO 2008073133 A1 WO2008073133 A1 WO 2008073133A1 US 2007004988 W US2007004988 W US 2007004988W WO 2008073133 A1 WO2008073133 A1 WO 2008073133A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- jewelry
- clasp
- parts
- screw threads
- coupling means
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
- A44C5/18—Fasteners for straps, chains or the like
- A44C5/185—Attachment of fasteners to straps or chains
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
- A44C5/18—Fasteners for straps, chains or the like
- A44C5/20—Fasteners for straps, chains or the like for open straps, chains or the like
- A44C5/2076—Fasteners for straps, chains or the like for open straps, chains or the like with the two ends of the strap or chain abutting each other or sliding in the main plane or a plane parallel to the main plane of these two ends
- A44C5/208—Fasteners for straps, chains or the like for open straps, chains or the like with the two ends of the strap or chain abutting each other or sliding in the main plane or a plane parallel to the main plane of these two ends being screwed to each other
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44D—INDEXING SCHEME RELATING TO BUTTONS, PINS, BUCKLES OR SLIDE FASTENERS, AND TO JEWELLERY, BRACELETS OR OTHER PERSONAL ADORNMENTS
- A44D2203/00—Fastening by use of magnets
-
- 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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/32—Buckles, buttons, clasps, etc. having magnetic fastener
Definitions
- the present invention relates to clasps for jewelry and more particularly to a safety clasp that includes magnet coupling means and mechanical coupling means in the form of
- Clasps for jewelry such as bracelets and necklaces are well known in the art.
- those clasps have the mechanical closure members that are externally mounted, those members may detract from the appearance of the clasp. Further, such a member may catch on the clothing or skin of the wearer.
- a jewelry clasp including first and second parts.
- the parts may be attached by magnetic coupling means and mechanical coupling means.
- the mechanical coupling means include first and second interengaging screw threads.
- the first part includes a recess defined by an internal surface.
- the internal surface has the first interengaging screw threads thereon.
- the second part includes an external surface.
- the external surface has the second interengaging screw threads thereon.
- One of the first and second parts is at least partially received within the other of the first and second parts.
- the clasp is designed for use with jewelry having first and second ends. It includes means for connecting the first part to the first end of the jewelry and means for connecting the second part to the second end of the jewelry.
- the first part includes first and second portions.
- the first portion of the first part has a substantially tubular shape.
- the second portion of the first part has a substantially cylindrical shape.
- the second portion of the first part is received within the first portion of the first part.
- the second portion of the first part is movably received within the first portion of the first part.
- the magnetic coupling means includes magnet means associated with the first portion of the first part and the second part.
- jewelry having first and second ends.
- the jewelry has a clasp including first and second parts.
- the first part is attached to the first end.
- the second part is attached to the second end.
- Magnetic means are provided for coupling the first and the second parts means.
- Mechanical means are provided for coupling the first and the second parts.
- the mechanical coupling means includes first and second interengaging screw threads.
- the first part includes a recess defined by an internal surface.
- the internal surface has the first interengaging screw threads thereon.
- the second part includes an external surface.
- the external surface has the second interengaging screw threads thereon.
- One of the first and second parts is at least partially received within the other of the first and second parts.
- Means are provided for connecting the first part to the first end of the jewelry. Means are also provided for connecting the second part to the second end of the jewelry.
- the first part includes first and second portions.
- the first portion of the first part has a substantially tubular shape.
- the second portion of the first part has a substantially cylindrical shape.
- the second portion of the first part is received within the first portion of the first part.
- the second portion of the first part is movably received within the first portion of the first part.
- the magnetic coupling means includes magnet means associated with the first portion of the first part and the second part.
- the second portion of the first part is rotatably and axially movably received with the first portion of the first part.
- the present invention relates to a jewelry clasp as described in detail in the following specification and recited in the annexed claims, taken together with the accompanying drawings, in which like numerals refer to like parts and in which:
- Figure 1 is an environmental view showing a bracelet with the clasp of the present invention on the wrist of a wearer
- Figure 2 is an enlarged isometric view of the clasp in the engaged state
- Figure 3 is a view similar to Figure 2 but showing the clasp in the disengaged state
- Figure 4 is an exploded isometric view of one of the clasp parts
- Figure 5 is an exploded isometric view of the other of the clasp parts
- Figure 6 is a cross-sectional view of the clasp with the parts in the engaged state
- Figure 7 is a view similar to Figure 6 showing the magnetic coupling means engaged and the mechanical coupling means disengaged;
- Figure 8 is a view similar to Figure 6 showing the clasp parts in the disengaged state.
- FIGS 1 and 2 show the clasp of the present invention, generally designated A, as it would appear connected to an article of jewelry, such as a bracelet 10.
- the clasp has two main parts, 12 and 14.
- Each of the parts 12, 14 includes a means for connecting that part to a different end 16, 18 of bracelet 10.
- each of the connecting means includes an axially extending stem 20, 22, protruding from parts 12, 14, respectively.
- each stem 20, 22 is a fixed ring 24, 26, respectively.
- a movable ring 28, 30 is permanently attached to each of the fixed rings 24, 26, respectively.
- a conventional spring-loaded hook-type connector 32 is attached to end 16 of bracelet 10 so as to removably engage ring 28.
- a similar connector 34 extends from ring 30 and is adapted to engage ring 36 on the end 18 of bracelet 10.
- Part 12 of the clasp includes a tubular member 38.
- Member 38 has a bore with an internal surface 40 having internal screw threads 42.
- Member 38 is freely received over and axially movable a limited distance relative to a substantially cylindrical inner magnet member 44, which forms the other element of part 12.
- Part 44 has a hemispherical end, from which stem 20 extends, and a planar end.
- member 38 cannot move off member 44 in either direction. It cannot move towards the right, as seen in Figures 6, 7and 8, because ring 28 is larger than the inner diameter of the bore of member 38. It cannot move towards the left, as seen in those figures, due to an inwardly extending stop member 46 proximate the non-threaded end (left as seen in the figures) of member 38, through which magnet member 44 cannot pass.
- the other part 14 of clasp A is a second magnetic member with external screw threads 48.
- Part 14 has a hemispherical end (right, as seen in the figures) from which stem 22 extends and a planar end (left, as seen in the figures) that faces the planar end of member 44.
- the exterior surface of part 14 has screw threads 48. Those screw threads are designed to engage the internal screw threads 42 on member 38 when member 38 is rotated relative to part 14.
- part 14 is magnetically attracted to member 44 to draw parts 12 and 14 toward each other, with the planar surfaces of member 44 and part 14 facing each other, as shown in Figure 8.
- member 44 is adjacent part 14, as shown in Figure 7
- tubular member 38 is moved toward part 14, such that internal screw threads 42 of member 38 begin to engage exterior screw threads 48 on part 14.
- Tubular member 38 is then rotated clockwise relative to part 14 to completely interengage the screw threads.
- the clasp is closed and appears as shown in Figure 6.
- Tubular part 38 is rotated counter-clockwise relative to part 14 until the screw threads are disengaged. Then member 38 is moved along member 44, away from part 14, and member 44 is pulled apart from part 14 with a force sufficient to overcome the magnetic attraction between member 44 and part 14.
- the present invention relates to a jewelry clasp that includes first and second parts, magnetic coupling means and mechanical coupling means.
- the mechanical coupling means takes the form of first and second interengaging screw threads.
- the first part includes a recess defined by an internal surface having the first interengaging screw threads.
- the second part has an external surface carrying the second interengaging screw threads
Landscapes
- Adornments (AREA)
Abstract
The jewelry clasp includes first and second parts, magnetic means for coupling the parts and mechanical means for coupling the parts. The mechanical coupling means takes the form of first and second interengaging screw threads. The first part includes a recess defined by an internal surface having the first interengaging screw threads. The second part has an external surface carrying the second interengaging screw threads.
Description
JEWELRY CLASP
BACKGROUND OF THE INVENTION FIELD OF THE INVENTION
The present invention relates to clasps for jewelry and more particularly to a safety clasp that includes magnet coupling means and mechanical coupling means in the form of
interengaging screw threads.
DESCRIPTION OF PRIOR ART INCLUDING INFORMATION DISCLOSED UNDER 37 CFR 1.97 AND 1.98
Clasps for jewelry such as bracelets and necklaces are well known in the art.
Many clasps have a single coupling means, which, if accidentally disengaged, results in
the jewelry falling off the wearer and possibly being lost. Since jewelry often has high
monetary and/or sentimental value, the possibility of lost due to the accidental opening of the clasp is to be avoided.
Accordingly, it is known to utilize as second coupling means, in conjunction with the first coupling means, so as to substantially reduce the possibility that the clasp will accidentally disengage. For example, it is known to use a magnetic coupling means
and a mechanical coupling means, such as is disclosed in US Patent No. 5,349,725 to
Levy and US Patent No. 5,197,168 to Levy, where the magnetic coupling draws the parts
of the clasp together and a plate-like mechanical closure member, attached to the exterior
of one of the parts, engages a complementarily shaped portion on the exterior of the other part. However, because those clasps have the mechanical closure members that are
externally mounted, those members may detract from the appearance of the clasp. Further, such a member may catch on the clothing or skin of the wearer.
To avoid the problems inherent in the use of an external mechanical closure member, it is known to use an internal mechanical coupling means in conjunction with the magnetic coupling means, as disclosed in US Patent No. 4,231,137 to Fujimoto and US Patent No. 3,129,477 to Mizuno. The clasps disclosed in the Fujimoto and Mizuno patents utilize a mechanical coupling means in the form of a "bayonet-type" closure, where a portion of one part is inserted into a recess in the other part and then rotated. However, the bayonet-type of mechanical coupling does not provide the safety necessary for many jewelry applications.
It is, therefore, a prime object of the present invention to provide a jewelry clasp with a mechanical coupling means that, when used in conjunction with magnetic coupling means provides a high degree of protection against accidental disengagement of the clasp parts.
It is another object of the present invention to provide a jewelry clasp with a screw-type mechanical coupling means.
It is another object of the present invention to provide a jewelry clasp with a screw-type mechanical coupling means including interengaging screw threads.
It is another object of the present invention to provide a jewelry clasp having an aesthetically pleasing appearance.
It is another object of the present invention to provide a jewelry clasp with a screw-type mechanical coupling means formed of a small number of relatively inexpensive and easily assembled parts that cooperate to provide a long useful life.
BRIEF SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, a jewelry clasp is provided including first and second parts. The parts may be attached by magnetic coupling means and mechanical coupling means. The mechanical coupling means include first and second interengaging screw threads.
The first part includes a recess defined by an internal surface. The internal surface has the first interengaging screw threads thereon. The second part includes an external surface. The external surface has the second interengaging screw threads thereon.
One of the first and second parts is at least partially received within the other of the first and second parts.
The clasp is designed for use with jewelry having first and second ends. It includes means for connecting the first part to the first end of the jewelry and means for connecting the second part to the second end of the jewelry.
The first part includes first and second portions. The first portion of the first part has a substantially tubular shape. The second portion of the first part has a substantially cylindrical shape. The second portion of the first part is received within the first portion of the first part. Preferably, the second portion of the first part is movably received within the first portion of the first part.
The magnetic coupling means includes magnet means associated with the first portion of the first part and the second part.
The second portion of the first part is rotatably and axially movably received with the first portion of the first part.
In accordance with another aspect of the present invention, jewelry is provided having first and second ends. The jewelry has a clasp including first and second parts. The first part is attached to the first end. The second part is attached to the second end. Magnetic means are provided for coupling the first and the second parts means. Mechanical means are provided for coupling the first and the second parts. The mechanical coupling means includes first and second interengaging screw threads.
The first part includes a recess defined by an internal surface. The internal surface has the first interengaging screw threads thereon. The second part includes an external surface. The external surface has the second interengaging screw threads thereon.
One of the first and second parts is at least partially received within the other of the first and second parts.
Means are provided for connecting the first part to the first end of the jewelry. Means are also provided for connecting the second part to the second end of the jewelry.
The first part includes first and second portions. The first portion of the first part has a substantially tubular shape. The second portion of the first part has a substantially cylindrical shape. The second portion of the first part is received within the first portion of the first part. Preferably, the second portion of the first part is movably received within the first portion of the first part.
The magnetic coupling means includes magnet means associated with the first portion of the first part and the second part.
The second portion of the first part is rotatably and axially movably received with the first portion of the first part.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF DRAWINGS
To these and to such other objects that may hereinafter appears, the present invention relates to a jewelry clasp as described in detail in the following specification and recited in the annexed claims, taken together with the accompanying drawings, in which like numerals refer to like parts and in which:
Figure 1 is an environmental view showing a bracelet with the clasp of the present invention on the wrist of a wearer;
Figure 2 is an enlarged isometric view of the clasp in the engaged state;
Figure 3 is a view similar to Figure 2 but showing the clasp in the disengaged state;
Figure 4 is an exploded isometric view of one of the clasp parts;
Figure 5 is an exploded isometric view of the other of the clasp parts;
Figure 6 is a cross-sectional view of the clasp with the parts in the engaged state;
Figure 7 is a view similar to Figure 6 showing the magnetic coupling means engaged and the mechanical coupling means disengaged; and
Figure 8 is a view similar to Figure 6 showing the clasp parts in the disengaged state.
DETAILED DESCRIPTION OF THE INVENTION
Figures 1 and 2 show the clasp of the present invention, generally designated A, as it would appear connected to an article of jewelry, such as a bracelet 10. The clasp has two main parts, 12 and 14. Each of the parts 12, 14 includes a means for connecting
that part to a different end 16, 18 of bracelet 10. As shown, each of the connecting means includes an axially extending stem 20, 22, protruding from parts 12, 14, respectively.
Attached to the end of each stem 20, 22 is a fixed ring 24, 26, respectively. A movable ring 28, 30 is permanently attached to each of the fixed rings 24, 26, respectively. A conventional spring-loaded hook-type connector 32 is attached to end 16 of bracelet 10 so as to removably engage ring 28. A similar connector 34 extends from ring 30 and is adapted to engage ring 36 on the end 18 of bracelet 10.
The parts of clasp A are illustrated in Figures 3, 4 and 5. Part 12 of the clasp includes a tubular member 38. Member 38 has a bore with an internal surface 40 having internal screw threads 42. Member 38 is freely received over and axially movable a limited distance relative to a substantially cylindrical inner magnet member 44, which forms the other element of part 12. Part 44 has a hemispherical end, from which stem 20 extends, and a planar end.
However, member 38 cannot move off member 44 in either direction. It cannot move towards the right, as seen in Figures 6, 7and 8, because ring 28 is larger than the inner diameter of the bore of member 38. It cannot move towards the left, as seen in those figures, due to an inwardly extending stop member 46 proximate the non-threaded end (left as seen in the figures) of member 38, through which magnet member 44 cannot pass.
The other part 14 of clasp A is a second magnetic member with external screw threads 48. Part 14 has a hemispherical end (right, as seen in the figures) from which stem 22 extends and a planar end (left, as seen in the figures) that faces the planar end of member 44. The exterior surface of part 14 has screw threads 48. Those screw threads are
designed to engage the internal screw threads 42 on member 38 when member 38 is rotated relative to part 14.
In order to close the clasp, part 14 is magnetically attracted to member 44 to draw parts 12 and 14 toward each other, with the planar surfaces of member 44 and part 14 facing each other, as shown in Figure 8. When member 44 is adjacent part 14, as shown in Figure 7, tubular member 38 is moved toward part 14, such that internal screw threads 42 of member 38 begin to engage exterior screw threads 48 on part 14. Tubular member 38 is then rotated clockwise relative to part 14 to completely interengage the screw threads. When the screw threads are completely engaged, the clasp is closed and appears as shown in Figure 6.
To disengage the clasp, the opposite operations are preformed. Tubular part 38 is rotated counter-clockwise relative to part 14 until the screw threads are disengaged. Then member 38 is moved along member 44, away from part 14, and member 44 is pulled apart from part 14 with a force sufficient to overcome the magnetic attraction between member 44 and part 14.
It will now be appreciated that the present invention relates to a jewelry clasp that includes first and second parts, magnetic coupling means and mechanical coupling means. The mechanical coupling means takes the form of first and second interengaging screw threads. The first part includes a recess defined by an internal surface having the first interengaging screw threads. The second part has an external surface carrying the second interengaging screw threads
While only a single preferred embodiment of the present invention has been disclosed for purposes of illustration, it is obvious that many modifications and variations
could be made thereto. It is intended to cover all of those modifications and variations
which fall within the scope of the present invention, as defined by the following claims.
Claims
1. A jewelry clasp comprising first and second parts, magnetic coupling means and mechanical coupling means, said mechanical coupling means comprising first and second interengaging screw threads.
2. The clasp of claim 1 wherein said first part comprises a recess defined by an internal surface having said first interengaging screw threads and said second part comprises an external surface having said second interengaging screw threads.
3. The clasp of claim 1 wherein and of said first and second parts is at least partially received within the other of said first and second parts.
4. The clasp of claim 1 for use with jewelry having first and second ends, further comprising means for connecting said first part to said first end of the jewelry and means for connecting said second part to said second end of the jewelry.
5. The clasp of claim 1 wherein said first part comprises first and second portions.
6. The clasp of claim 5 wherein said first portion of said first part has a substantially tubular shape.
7. The clasp of claim 5 wherein said second portion of said first part has a substantially cylindrical shape.
8. The clasp of claim 6 wherein said first portion of said first part has a substantially tubular shape.
9. The clasp of claim 8 wherein said second portion of said first part is received within said first portion of said first part.
10. The clasp of claim 8 wherein said second portion of said first part is movably received within said first portion of said first part.
11. The clasp of claim 5 wherein said magnetic coupling means comprises magnet means associated with one of said first portion of said first part and said second part.
12. The clasp of claim 5 wherein said magnetic coupling means comprises magnet means associated with said first portion of said first part and said second part.
13. The clasp of claim 8 wherein said second portion of said first part is rotatably and axially movably received with said first portion of "said first part.
14. Jewelry having first and second ends including clasp comprising first and second parts, said first part being attached to the first end and said second part being attached to the second end, magnetic means for coupling said first and said second parts means and mechanical means for coupling said first and said second parts, said mechanical coupling means comprising first and second interengaging screw threads.
15. The jewelry of claim 14 wherein said first part comprises a recess defined by an internal surface having said first interengaging screw threads and said second part comprises an external surface having said second interengaging screw threads.
16. The jewelry of claim 14 wherein and of said first and second parts is at least partially received within the other of said first and second parts.
17. The jewelry of claim 14 comprising means for connecting said first part to said first end of the jewelry and means for connecting said second part to said second end of the jewelry.
18. The jewelry of claim 14 wherein said first part comprises first and second portions.
19. The jewelry of claim 14 wherein said first portion of said first part has a substantially tubular shape.
20. The jewelry of claim 19 wherein said second portion of said first part has a substantially cylindrical shape.
21. The jewelry of claim 20 wherein said first portion of said first part has a substantially tubular shape.
22. The jewelry of claim 20 wherein said second portion of said first part is received within said first portion of said first part.
23. The jewelry of claim 21 wherein said second portion of said first part is movably received within said first portion of said first part.
24. The jewelry of claim 18 wherein said magnetic coupling means comprises magnet means associated with one of said first portion of said first part and said second part.
25. The jewelry of claim 18 wherein said magnetic coupling means comprises magnet means associated with said first portion of said first part and said second part.
26. The jewelry of claim 21 wherein said second portion of said first part is rotatably and axially movably received with said first portion of said first part.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/639,606 US20080141502A1 (en) | 2006-12-14 | 2006-12-14 | Jewelry clasp |
US11/639,606 | 2006-12-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008073133A1 true WO2008073133A1 (en) | 2008-06-19 |
Family
ID=39512021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/004988 WO2008073133A1 (en) | 2006-12-14 | 2007-02-27 | Jewelry clasp |
Country Status (2)
Country | Link |
---|---|
US (1) | US20080141502A1 (en) |
WO (1) | WO2008073133A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102525049A (en) * | 2012-03-20 | 2012-07-04 | 赵威 | Magnetic thread bead chain jewelry lock catch |
CN106377022A (en) * | 2016-11-08 | 2017-02-08 | 苏州东吴黄金文化发展有限公司 | Bracelet |
CN107467819A (en) * | 2017-09-08 | 2017-12-15 | 东莞市联洲知识产权运营管理有限公司 | A kind of watchband of Intelligent bracelet adjustable in length |
CN107467816A (en) * | 2017-09-08 | 2017-12-15 | 东莞市联洲知识产权运营管理有限公司 | A kind of light Intelligent bracelet replaceable with body |
EP3287034A1 (en) * | 2016-08-24 | 2018-02-28 | Kilian Müller | Wristwatch or chain clasp |
CN108700099A (en) * | 2015-12-31 | 2018-10-23 | 凯奇莱奇有限责任公司 | mechanical magnetic connector structure |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8402612B2 (en) * | 2007-04-03 | 2013-03-26 | The Dual Magnetic Interlocking Pin System, Llc | Dual magnetic interlocking pin system |
DE102008019063B4 (en) * | 2008-04-15 | 2011-04-14 | Fidlock Gmbh | Mechanical-magnetic connection construction |
US20130305782A1 (en) * | 2012-05-18 | 2013-11-21 | Arlene Theresa Butler | Jewelry system and method of using the same |
CA2802416A1 (en) * | 2013-01-16 | 2014-07-16 | Luc Levesque | Improved drawstring connector and methods of use |
US20160113359A1 (en) * | 2014-10-28 | 2016-04-28 | Pur Noisetier Inc. | Clasp device for necklace |
DE102016115716A1 (en) | 2016-08-24 | 2018-03-01 | Kilian Müller | BRACELET OR CHAIN LOCK |
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US5317789A (en) * | 1990-06-12 | 1994-06-07 | Davida Levy | Magnetic jewelry closures with safety features |
US5392497A (en) * | 1990-05-16 | 1995-02-28 | Defner; Jesus E. G. | Magnetic clasp |
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US2615227A (en) * | 1949-11-18 | 1952-10-28 | Hornik Frederick | Magnetic clasp coupling for jewelry |
US2648884A (en) * | 1949-12-02 | 1953-08-18 | Parker Pen Co | Magnetic clasp |
US3111736A (en) * | 1961-12-07 | 1963-11-26 | Monarch Tool & Machinery Co | Separable two-part magnetic connector |
US3129477A (en) * | 1962-06-21 | 1964-04-21 | New Kyoei Inc | Magnetic clasp |
US3621690A (en) * | 1970-04-15 | 1971-11-23 | George E Whitcomb | Key retainer |
JPS557938U (en) * | 1978-06-29 | 1980-01-19 | ||
US5099659A (en) * | 1989-09-12 | 1992-03-31 | Idylls Ltd. | Magnetic jewelry clasp |
US5349725A (en) * | 1990-06-12 | 1994-09-27 | Davida Enterprises, Inc. | Jewelry closure having a magnetic clasp with safety features |
US5197168A (en) * | 1990-06-12 | 1993-03-30 | Davida Levy | Magnetic jewelry closures with wire safety clasp |
US5664298A (en) * | 1996-04-30 | 1997-09-09 | Nessar-Ivanovic; Lori J. | Jewelry clasp |
US6481065B2 (en) * | 2001-02-15 | 2002-11-19 | Jolita Cogdill | Jewelry closure |
US7073232B1 (en) * | 2002-07-22 | 2006-07-11 | Fuhrman Esther C | Magnetic jewelry clasp with safety catch |
-
2006
- 2006-12-14 US US11/639,606 patent/US20080141502A1/en not_active Abandoned
-
2007
- 2007-02-27 WO PCT/US2007/004988 patent/WO2008073133A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5392497A (en) * | 1990-05-16 | 1995-02-28 | Defner; Jesus E. G. | Magnetic clasp |
US5317789A (en) * | 1990-06-12 | 1994-06-07 | Davida Levy | Magnetic jewelry closures with safety features |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102525049A (en) * | 2012-03-20 | 2012-07-04 | 赵威 | Magnetic thread bead chain jewelry lock catch |
CN108700099A (en) * | 2015-12-31 | 2018-10-23 | 凯奇莱奇有限责任公司 | mechanical magnetic connector structure |
CN108700099B (en) * | 2015-12-31 | 2020-04-03 | 凯奇莱奇有限责任公司 | Mechanical magnetic connector structure |
EP3287034A1 (en) * | 2016-08-24 | 2018-02-28 | Kilian Müller | Wristwatch or chain clasp |
CN106377022A (en) * | 2016-11-08 | 2017-02-08 | 苏州东吴黄金文化发展有限公司 | Bracelet |
CN107467819A (en) * | 2017-09-08 | 2017-12-15 | 东莞市联洲知识产权运营管理有限公司 | A kind of watchband of Intelligent bracelet adjustable in length |
CN107467816A (en) * | 2017-09-08 | 2017-12-15 | 东莞市联洲知识产权运营管理有限公司 | A kind of light Intelligent bracelet replaceable with body |
Also Published As
Publication number | Publication date |
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US20080141502A1 (en) | 2008-06-19 |
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