Electric heating – Metal heating – For bonding with pressure
Reexamination Certificate
2006-08-29
2006-08-29
Shaw, Clifford C. (Department: 1725)
Electric heating
Metal heating
For bonding with pressure
C100S289000
Reexamination Certificate
active
07098419
ABSTRACT:
The invention concerns a device comprising a screw (10) with pitch (P1) driven by a motor (M), a nut (12) co-operating with the screw (10) and designed to be driven in translation in the direction of the screw axis, said nut being integral in translation with a member (14), guide means (22L,24L) defining a linear guiding to lock the rotation of the nut in a first phase of displacement, second guide means (22H,24H) defining a helical guiding having a reverse pitch (P2) relative to the pitch of the screw to enable the transverse pitch and hence the translational speed of the nut to be decreased in said second phase of displacement. The inventive device can be used to produce a relative displacement between the members (16and28) of a clamping tool.
REFERENCES:
patent: 3606801 (1971-09-01), Williams
patent: 4235258 (1980-11-01), Uno et al.
patent: 6204468 (2001-03-01), Habert
patent: 200 02 630 (2000-06-01), None
patent: 1 057 569 (2000-12-01), None
patent: 2 261 081 (1993-05-01), None
International Search Report of PCT/FR02/00444, dated Jun. 28, 2002.
International Preliminary Examination Report of PCT/FR02/00444, dated Oct. 16, 2002.
Loriot Jean-Marc
Salesse Christian
Christie Parker & Hale LLP
Shaw Clifford C.
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