US4905335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic rings, bracelets and necklaces
Assignee: Individual
•
Filing: 1988-09-26
•
Granted: 1990-03-06
•
Expires: 2008-09-26
Abstract
Abstract A device in the form of a ring for wearing on a finger, a bracelet for wearing on a wrist or a necklace for wearing on the neck bears a magnetic pick-up for engaging ferromagnetic objects. It may include other tools such as screwdriver blades, line cutters, prying claws and the like for convenience in having certain useful tools at hand when needed without encumbering the hands of the user.
Inventors
- 👤 Pentti J. Tervola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:36
CPC Classifications
A; A44; A44C; A44C9/00; A44C9/0053; A44C5/00; A44C5/0007; A44C5/0046; B; B25; B25F; B25F1/00; A44D; A44D2203/00; Y; Y10; Y10S; Y10S7/00; Y10S7/901
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
52 words
A body-part-encircling band to be worn on the body part, said body part selected from the group consisting of finger, arm and neck, said band constructed from an elongate piece of magnetic material bent into a band shape with the ends turned up substantially radially for engaging ferromagnetic materials at said ends.
Claim 2
Dependent Claim
52 words
A body-part-encircling band to be worn on the body part, said body part selected from the group consisting of finger, arm and neck, said band constructed from an elongate piece of magnetic material bent into a band shape with the ends turned up substantially radially for engaging ferromagnetic materials at said ends.
Claim 3
Dependent Claim
37 words
The band according to claim 1, including at least one screwdriver means for engaging the head of a screw, said screwdriver means securely connected to said band to provide for turning said screw by turning said band.
Claim 4
Dependent Claim
46 words
The band according to claim 1, further including one-piece cord cutter means for cutting cord, thread, or line, said cutter means securely connected to said band and having a tapered slot with at least one sharp internal edge tapering to a knife edge at said slot.
Claim 5
Dependent Claim
46 words
The band according to claim 2, further including one-piece cord cutter means for cutting cord, thread, or line, said cutter means securely connected to said band and having a tapered slot with at least one sharp internal edge tapering to a knife edge at said slot.
Claim 6
Dependent Claim
16 words
The band according to claim 1, further including a glass cutter securely connected to said band.
Claim 7
Dependent Claim
16 words
The band according to claim 2, further including a glass cutter securely connected to said band.
Claim 8
Dependent Claim
16 words
The band according to claim 3, further including a glass cutter securely connected to said band.
Claim 9
Dependent Claim
17 words
The band according to claim 1, further including a one-piece container opener securely connected to said band.
Claim 10
Dependent Claim
17 words
The band according to claim 2, further including a one-piece container opener securely connected to said band.
Claim 11
Dependent Claim
17 words
The band according to claim 3, further including a one-piece container opener securely connected to said band.
Claim 12
Dependent Claim
17 words
The band according to claim 4, further including a one-piece container opener securely connected to said band.
Claim 13
Dependent Claim
17 words
The band according to claim 5, further including a one-piece container opener securely connected to said band.
Claim 14
Dependent Claim
17 words
The band according to claim 6, further including a one-piece container opener securely connected to said band.
Claim 15
Dependent Claim
17 words
The band according to claim 7, further including a one-piece container opener securely connected to said band.
Claim 16
Dependent Claim
16 words
The band according to claim 4, further including a glass cutter securely attached to said band.
Claim 17
Dependent Claim
17 words
The band according to claim 15, further including a one-piece container opener securely connected to said band.
Claim 18
Dependent Claim
99 words
A body-part-encircling band to be worn on a body part, said body part selected from the group consisting of finger, arm and neck, said band including: (a) at least one screwdriver means for engaging the head of a screw, said screwdriver means securely connected to said band to provide for turning said screw by turning said band; (b) magnet means securely connected to said band for magnetically engaging ferromagnetic materials; and (c) a plurality of individual magnets arranged on said band in a coded sequence and polarity for functioning as a magnet key for unlocking a magnetically actuated lock.
Claim 19
Dependent Claim
99 words
A body-part-encircling band to be worn on a body part, said body part selected from the group consisting of finger, arm and neck, said band including: (a) at least one screwdriver means for engaging the head of a screw, said screwdriver means securely connected to said band to provide for turning said screw by turning said band; (b) magnet means securely connected to said band for magnetically engaging ferromagnetic materials; and (c) a plurality of individual magnets arranged on said band in a coded sequence and polarity for functioning as a magnet key for unlocking a magnetically actuated lock.
Claim 20
Dependent Claim
124 words
A body-part-encircling band to be worn on a body part, said body part selected from the group consisting of finger, arm and neck, said band including: (a) at least one screwdriver means for engaging the head of a screw, said screwdriver means securely connected to said band to provide for turning said screw by turning said band; (b) one-piece cord cutter means for cutting cord, thread or line, said cutter means securely connected to said band and having a tapered slot with at least one sharp internal edge tapering to a knife edge at said slot; and (c) a plurality of individual mangets on said band in a coded sequence and polarity for functioning as a magnetic key for unlocking a magnetically actuated lock.
Claim 21
Dependent Claim
124 words
A body-part-encircling band to be worn on a body part, said body part selected from the group consisting of finger, arm and neck, said band including: (a) at least one screwdriver means for engaging the head of a screw, said screwdriver means securely connected to said band to provide for turning said screw by turning said band; (b) one-piece cord cutter means for cutting cord, thread or line, said cutter means securely connected to said band and having a tapered slot with at least one sharp internal edge tapering to a knife edge at said slot; and (c) a plurality of individual mangets on said band in a coded sequence and polarity for functioning as a magnetic key for unlocking a magnetically actuated lock.
Claim 22
Dependent Claim
95 words
A body-part-encircling band to be worn on a body part, said body part selected from the group consisting of finger, arm and neck, said band including: (a) at least one screwdriver means for engaging the head of a screw, said screwdriver means securely connected to said band to provide for turning said screw by turning said band; (b) a glass cutter securely connected to said band; and (c) a plurality of individual magnets arranged on said band in a coded sequence and polarity for functioning as a magnet key for unlocking a magnetically actuated lock.
Claim 23
Dependent Claim
95 words
A body-part-encircling band to be worn on a body part, said body part selected from the group consisting of finger, arm and neck, said band including: (a) at least one screwdriver means for engaging the head of a screw, said screwdriver means securely connected to said band to provide for turning said screw by turning said band; (b) a glass cutter securely connected to said band; and (c) a plurality of individual magnets arranged on said band in a coded sequence and polarity for functioning as a magnet key for unlocking a magnetically actuated lock.
Claim 24
Dependent Claim
96 words
A body-part-encircling band to be worn on a body part, said body part selected from the group consisting of finger, arm and neck, said band including: (a) at least one screwdriver means for engaging the head of a screw, said screwdriver means securely connected to said band to provide for turning said screw by turning said band; (b) a one-piece container opener securely connected to said band; and (c) a plurality of individual magnets arranged on said band in a coded sequence and polarity for functioning as a magnet key for unlocking a magnetically actuated lock.
Claim 25
Dependent Claim
96 words
A body-part-encircling band to be worn on a body part, said body part selected from the group consisting of finger, arm and neck, said band including: (a) at least one screwdriver means for engaging the head of a screw, said screwdriver means securely connected to said band to provide for turning said screw by turning said band; (b) a one-piece container opener securely connected to said band; and (c) a plurality of individual magnets arranged on said band in a coded sequence and polarity for functioning as a magnet key for unlocking a magnetically actuated lock.
References Cited (Backward Citations)
US2735321A
Cited
US2176052A
Cited
US2585641A
Cited
US4174620A
Cited
US4332178A
Cited
SU1237408A1
Cited
US4667544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |