US PATENT SUBCLASS 402 / 54
.~.~ Wedge type securing means

Current as of: June, 1999
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402 /   HD   BINDER DEVICE RELEASABLY ENGAGING APERTURE OR NOTCH OF SHEET

46  DF  OPPOSED SHEET RETAINERS INVOLVING RELATIVE RECTILINEAR TRAVEL {4}
48  DF  .~ Telescopic retainers with means to telescopically drive and/or secure {4}
54.~.~ Wedge type securing means

DEFINITION

Classification: 402/54

(under subclass 48) Device wherein the means to telescopically drive or secure the first sheet retainer relative to the second sheet retainer includes a cam element which element applies force to at least one of the sheet retainers either by direct contact therewith or through an intermediate member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

52+, for a similar device wherein the cam element or such intermediate member selectively engages at least one of a series of notches in one of the sheet retainers.

64+, for a sheet retainer including a keeper secured thereto by means including a cam element.