Clamp for ring parts

Details Clamp for ring parts Clamp for ring parts

2005-06-14

2005-06-14

Watson, Robert C. (Department: 3723)

Metal working

Means to assemble or disassemble

Including means to relatively position plural work parts

C081S007000, C029S251000

Reexamination Certificate

active

06904654

ABSTRACT:
This invention relates to a jewelry clamping device particularly adapted for holding a ring shank and crown in place during ring manufacture or repair. The device comprises a generally C-shaped frame having a base plate and a top plate. A nest mounted on the base plate has an upper surface formed with at least one groove positioned to engage and hold the crown. A vertically adjustable shaft is connected to the top plate in alignment with the position of the crown. The lower end of the shaft is adapted to engage and hold a ring shank in alignment with the crown. The device is particularly useful for holding the shank and crown in place during soldering.

REFERENCES:
patent: 1442986 (1923-01-01), Toy
patent: 2962796 (1960-12-01), Bick
patent: 3727905 (1973-04-01), Haven
patent: 3960307 (1976-06-01), Doyel
patent: 4077284 (1978-03-01), Twichell
patent: 4105344 (1978-08-01), Rousom
patent: 4329890 (1982-05-01), Ferstenberg
patent: 5535506 (1996-07-01), Chalfin
Professional Jewelers Magazine, vol. 5, No. 2, on p. # 96 an article entitled, “Modified Tweezers”, Feb. 2002 edition.

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