US 4,195,391 AGranted

Jewelry clutch

AssigneeAnson Incorporated

InventorOlof V. Anderson

Life of this patent

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Abstract

This invention relates to a jewelry clutch for securing articles together, the clutch including releasably connected male and female components. The male component comprises a pin and the female component comprises a retainer located in a carrier. The carrier is positioned in a housing for releasably clamping the pin. When joined, the pin cannot be separated from the retainer except by depressing the carrier into the housing.

Claims6

Dependent claims

A jewelry clutch comprising:

an elongated generally circular housing, a first end of said housing being closed and a second end of said housing being turned inwardly to provide an aperture opening into the interior of said housing, the size of said aperture being less than the diameter of the interior of said housing,
an indentation formed in said housing intermediate said first and second ends, said indentation extending around said housing and providing a zone of reduced diameter within the interior of said housing, said area of reduced diameter constituting an inclined cam surface within said housing,
a carrier positioned for sliding movement within the interior of said housing,
said carrier having an axial bore therethrough of a diameter to permit sliding movement of an elongated pin therein, said bore being of a constant diameter over its entire length,
said carrier having an elongated main section of a dimension slightly smaller than said zone of reduced diameter within said housing, said carrier further having a first section extending from said main section toward the first end of said housing and a second section extending from said main section and projecting through said aperture in said housing a distance to permit manual contact with the end of said second section remote from said main section,
said carrier having a transverse passageway extending across the main section thereof at a position generally intermediate the length of the main section of said carrier,
a pair of gripping balls positioned for rolling movement within said transverse passageway, said balls being movable from first positions free of engagement with said inclined cam surface to second positions projecting out of said passageway for engagement with said inclined cam surface when said elongated pin is inserted between said gripping balls,
and a spring compressed within the interior of said housing with one of its ends bearing on the first end of said housing and the opposite end of said spring engaging said carrier,
said spring acting to bias said carrier toward said second end of said housing to thereby force said balls onto said inclined wall when said gripping balls are in said second positions with said pin positioned between said gripping balls whereby said gripping balls exert a force directed inwardly against said pin to thereby firmly secure said pin in engagement with said housing.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

A jewelry clutch comprising:

an elongated generally circular housing, a first end of said housing being closed and a second end of said housing being turned inwardly to provide an aperture opening into the interior of said housing, the size of said aperture being less than the diameter of the interior of said housing,
an indentation formed in said housing intermediate said first and second ends, said indentation extending around said housing and providing a zone of reduced diameter within the interior of said housing, said area of reduced diameter constituting an inclined cam surface within said housing,
a carrier positioned for sliding movement within the interior of said housing,
said carrier having an axial bore therethrough of a diameter to permit sliding movement of an elongated pin therein, said bore being of a constant diameter over its entire length,
said carrier having an elongated main section of a dimension slightly smaller than said zone of reduced diameter within said housing, said carrier further having a first section extending from said main section toward the first end of said housing and a second section extending from said main section and projecting through said aperture in said housing a distance to permit manual contact with the end of said second section remote from said main section,
said carrier having a transverse passageway extending across the main section thereof at a position generally intermediate the length of the main section of said carrier,
a pair of gripping balls positioned for rolling movement within said transverse passageway, said balls being movable from first positions free of engagement with said inclined cam surface to second positions projecting out of said passageway for engagement with said inclined cam surface when said elongated pin is inserted between said gripping balls,
and a spring compressed within the interior of said housing with one of its ends bearing on the first end of said housing and the opposite end of said spring engaging said carrier,
said spring acting to bias said carrier toward said second end of said housing to thereby force said balls onto said inclined wall when said gripping balls are in said second positions with said pin positioned between said gripping balls whereby said gripping balls exert a force directed inwardly against said pin to thereby firmly secure said pin in engagement with said housing.

6 more elements