Adjustable ring structure

Jewelry – Body member encircling ornament – Ring

Patent

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Details

63 155, A44C 902

Patent

active

047530871

ABSTRACT:
Adjustable ring structure is provided in accordance with the teachings of the present invention wherein a ring shank is hinged to define first and second arcuate elements having an aperture therebetween. According to one preferred embodiment, a ring top having first and second slider members is disposed within the opening with the first and second slider members slideably mounted within interior groove portions in each of the first and second arcuate elements. First and second arms are provided for connecting the ring top to corresponding locations on the first and second arcuate elements adjacent to the opening to allow the ring top to be displaced to expand and contract the ring shank while an overall round configuration is maintained. In a second preferred embodiment, a minor ring segment having a pair of externally groove sidewalls is provided in conjunction with a linkage pivotably connecting the minor ring segment to the first and second arcuate elements at a location thereon proximate to the opening to allow the minor ring segment to be displaced toward and away from the opening to expand and contract the ring shank. An ornamental ring top configured to fit over the minor ring segment and at least portions of the first and second arcuate elements is provided with a pair of internally grooved sidewalls positioned to spatially cooperate with the pair of externally grooved sidewalls in the minor ring segment to define a pair of closed channels.

REFERENCES:
patent: 263920 (1882-09-01), La Grange
patent: 297446 (1884-04-01), Prahl
patent: 672366 (1901-04-01), Herzog
patent: 738700 (1903-09-01), Roitman et al.
patent: 899296 (1908-09-01), Elliot
patent: 1859189 (1932-05-01), Wheeler
patent: 2430508 (1947-11-01), Holl
patent: 3901045 (1975-08-01), Ballester

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