Ratchet assembly device for fitting a back cover and/or a...

Horology: time measuring systems or devices – Chronological – With significant casing or mounting support structure

Reexamination Certificate

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Details

C368S316000

Reexamination Certificate

active

11083753

ABSTRACT:
An elastic assembly joined to at least one side face of one of the members to be assembled is engaged by elastic deformation with a ratchet fastening element fixedly connected to the other member to be assembled. These elastic assemblies are constituted by an elongated element. The assembly side face to which it is joined has an elongated receptacle for the reception thereof, this forming in the assembly side face a opening through which a side portion of its wall projects to lie within the trajectory of the ratchet fastening element so as to allow coupling of this ratchet fastening element, at least one of the faces of the latter being configured to hold the elongated element under elastic strain and being orientated to resolve the force exerted upon it into a component which tends to hold the assembled members in place.

REFERENCES:
patent: 2737010 (1956-03-01), Piquerez
patent: 2858663 (1958-11-01), Schwarz
patent: 3855786 (1974-12-01), Yamamoto
patent: 4068466 (1978-01-01), Tissot
patent: 4198811 (1980-04-01), Ratajski
patent: 4362401 (1982-12-01), Mitamura et al.
patent: 5455808 (1995-10-01), Grupp et al.
patent: 215 994 (1941-07-01), None
patent: 217 009 (1941-09-01), None
patent: 258 894 (1948-12-01), None
patent: 423 637 (1967-05-01), None
patent: 447 046 (1968-03-01), None
patent: 512 769 (1971-10-01), None
patent: 556 567 (1974-06-01), None
patent: 1387021 (1963-06-01), None

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