US PATENT SUBCLASS 24 / 573.1
.~ With third, detached member completing interlock

Current as of: June, 1999
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24 /   HD   BUCKLES, BUTTONS, CLASPS, ETC.

572  DF  SEPARABLE-FASTENER OR REQUIRED COMPONENT THEREOF {5}
573.1.~ With third, detached member completing interlock {4}
573.2  DF  .~.~> And linking cavities in adjacent parallel panels
573.3  DF  .~.~> Third member includes independently engaged hooks for linking spaced cavities {1}
573.5  DF  .~.~> Third member includes relatively movable, separate components {1}
573.7  DF  .~.~> Third member consists of unitary elongated element

DEFINITION

Classification: 24/573.1

With third, detached member completing interlock:

(under subclass 572) Separable-fastener* provided with a third, dissociable member which is not directly attached to the two other mating interlocking members and which concurrently engages both of them when they are in their final fastening position to complete the interlocking connection.

(1) Note. This interlocking member may either be totally separate from or linked with the structure-to-be-secured*.

(2) Note. A separable-fastener* which includes three separate members and has at least one member which is capable of completing a useful interlocking connection between a section of the structure-to-be-secured* to which it is mounted and either another section thereof or a support therefor by selectively interlocking with either of the remaining two dissociable members without requiring (a) all three members to be interengaged to complete interlock or (b) their connections to be done in a specific sequence with each other is not considered proper for this and the indented subclasses and is found below in subclasses 605, 630+, or 697.

SEE OR SEARCH THIS CLASS, SUBCLASS:

287, for a detachable fastener connecting two freight containers.

289+, for trim molding fasteners.

305+, and 379.1, for a separable-fastener* member having two distinct and diversely shaped interlocking faces which are each intended to engage a different, separate, dissociable mating member and independently interlock therewith (i.e., there separate interlocking operations have no effect on each other and they can be engaged in any sequence) to complete a useful connection utilizing all three of the dissociable members. 453, for a fastener which includes three separate components and has two of these components both formed from the material of the structure-to-be-secured* or a support therefor and (b) aligned with each other when the fastening operation is completed.

SEE OR SEARCH CLASS

59, Chain, Staple, and Horseshoe Making,

85+, for a detachable chain link.

403, Joints and Connections,

292+, for two rigid* or semi-rigid* structural members having

their ends joined together by a fastening member inserted into an opening located in each.