(under subclass 74) Device wherein the immobilizing structure comprises a threaded element(s) adjustably mounted on the holder (or the holder support) so that an end of said element can frictionably engage the holder support (or the holder).
(1) Note. While the reaction to the force applied by the set screw may involve considerable surface area contact of a binding nature between the holder and holder support, the application of binding force is by means of the set screw.
SEE OR SEARCH THIS CLASS, SUBCLASS:
74, for patents to a holder with position lock means utilizing a detent or interlocking elements.
