Joints and connections – Rotarily connected – differentially translatable members,... – Externally threaded actuator
Reexamination Certificate
2004-07-07
2009-02-10
Ferguson, Michael P (Department: 3679)
Joints and connections
Rotarily connected, differentially translatable members,...
Externally threaded actuator
C403S022000, C403S043000, C403S167000, C403S168000, C403S408100
Reexamination Certificate
active
07488135
ABSTRACT:
A fastening device permitting two separate members to be fixed together with a relative interval between them including a bolt with a male screw portion formed at a front end side of a cylindrical shaft portion thereof and a spacer having a female screw portion engaging a male screw portion and screw-fastens with a screw of a first member side and rotates while receiving a rotation torque from the bolt and moves up to a position in which it comes into a contact with a second member. The root diameter of a male screw portion is smaller than the diameter of a cylindrical shaft portion while the inside diameter of the female screw portion is larger than the diameter of the cylindrical shaft portion. Consequently, the cylindrical shaft portion can be passed through the female screw portion even if the diameter of the cylindrical shaft portion is not reduced in diameter by cutting processing.
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Aoyama Seisakusho Co., Ltd.
Ferguson Michael P
Steptoe & Johnson LLP
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