US4170118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earring
Assignee: INTIMATE JEWELS Inc
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Filing: 1978-05-22
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Granted: 1979-10-09
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Expires: 1998-05-22
Abstract
Abstract An improvement in post-type earrings, which are earrings connected to a human ear by a rigid slender short rod or post. One end of the post is attached to an ornament. The post is rectilinear and cylindrical and extends from attachment to the ornament. In service, the other end of the post is pushed through an opening in a person's ear, and a suitable element is attached to the other end of the post to secure the earring on the ear. In the present invention, at least a portion of the outer surface of the post has a helical threading. The element used to secure the post on the ear is a clutch having a terminal first central opening about which are radially arrayed a plurality of spaced apart springy fingers. The fingers extend to terminal attachment to a disc-shaped base portion of the clutch having a second central opening. The clutch is engageable by the post by extending the post axially through the openings in the clutch, until the tips of the springy fingers pass over the convolutions of the threading and are held in the threading. The fingers cannot be moved reversely in an axial direction because in this direction they catch on the flanks of the threads. To disengage the clutch from the post, the clutch must be rotated about the post, so that in effect the clutch is pushed on axially and screwed off by rotary motion.
Inventors
- 👤 Alvin Block
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:36
CPC Classifications
A; A44; A44C; A44C7/00; A44C7/003; Y; Y10; Y10S; Y10S411/00; Y10S411/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
428 words
An earring for pierced ears which comprises an ornament in a setting, a rectilinear cylindrical post extending from said ornament setting, at least a portion of the outer surface of said post having a helical threading, and a clutch, said clutch having a central disc-shaped base portion having a circular central opening and a circular perimeter, and a plurality of spaced-apart springy fingers, said springy fingers extending radially from truncated terminal tips defining a circular opening, to a curved attachment to the circular outer perimeter of said base portion, said curved attachments forming, in combination, the circular outer perimeter of said base portion, so that said clutch is substantially conical, said clutch being engageable by said post by extending said post axially through the central opening in said base portion and then through the opening defined by the terminal tips of said fingers, whereby the tips of said fingers pass over the convolutions of the threading, and so that said clutch cannot be disengaged from said post by reverse axial movement but may be disengaged from said post only by rotating said clutch, the circular central opening and the circular perimeter of the base portion of said clutch being concentric, and the circular opening defined by the truncated terminal tips of said fingers being coaxial with the circular central opening of the base portion of said clutch, so that, when said post is extending axially through the circular central opening in said base portion and then through the circular opening defined by the truncated terminal tips of said fingers, the helical threading on the outer surface of said post is coaxially aligned with the circular opening defined by the truncated terminal tips of said fingers, a portion of said helical threading then being continguous with the truncated terminal tips of said fingers so that said truncated terminal tips engage said portion of said helical threading, adjacent fingers of said plurality of springy fingers being spaced apart so that radial slots are defined between adjacent fingers, each slot having side walls which diverge continuously away from each other in direction from the opening defined by the truncated terminal tips of the fingers to the circular outer perimeter of the base portion, said side walls of each slot being in substantial engagement with each other at the opening defined by the tips to thereby securely engage the post about substantially its entire periphery, said side walls of each slot being spaced further apart of each other at the circular outer perimeter to thereby increase the resiliency of the fingers thereat.
Claim 2
Dependent Claim
428 words
An earring for pierced ears which comprises an ornament in a setting, a rectilinear cylindrical post extending from said ornament setting, at least a portion of the outer surface of said post having a helical threading, and a clutch, said clutch having a central disc-shaped base portion having a circular central opening and a circular perimeter, and a plurality of spaced-apart springy fingers, said springy fingers extending radially from truncated terminal tips defining a circular opening, to a curved attachment to the circular outer perimeter of said base portion, said curved attachments forming, in combination, the circular outer perimeter of said base portion, so that said clutch is substantially conical, said clutch being engageable by said post by extending said post axially through the central opening in said base portion and then through the opening defined by the terminal tips of said fingers, whereby the tips of said fingers pass over the convolutions of the threading, and so that said clutch cannot be disengaged from said post by reverse axial movement but may be disengaged from said post only by rotating said clutch, the circular central opening and the circular perimeter of the base portion of said clutch being concentric, and the circular opening defined by the truncated terminal tips of said fingers being coaxial with the circular central opening of the base portion of said clutch, so that, when said post is extending axially through the circular central opening in said base portion and then through the circular opening defined by the truncated terminal tips of said fingers, the helical threading on the outer surface of said post is coaxially aligned with the circular opening defined by the truncated terminal tips of said fingers, a portion of said helical threading then being continguous with the truncated terminal tips of said fingers so that said truncated terminal tips engage said portion of said helical threading, adjacent fingers of said plurality of springy fingers being spaced apart so that radial slots are defined between adjacent fingers, each slot having side walls which diverge continuously away from each other in direction from the opening defined by the truncated terminal tips of the fingers to the circular outer perimeter of the base portion, said side walls of each slot being in substantial engagement with each other at the opening defined by the tips to thereby securely engage the post about substantially its entire periphery, said side walls of each slot being spaced further apart of each other at the circular outer perimeter to thereby increase the resiliency of the fingers thereat.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-08 | 1983-04-09 | 1983-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-08 | 1987-04-09 | 1987-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-08 | 1991-04-09 | 1991-10-09 | $7700.00 | Window Closed / Lapsed |