US PATENT SUBCLASS 269 / 111
.~.~ Quadrilateral frame type

Current as of: June, 1999
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269 /   HD   WORK HOLDERS

86  DF  RELATIVELY MOVABLE JAWS {25}
104  DF  .~ Plural jaw pairs, angularly oriented, for common work {4}
111.~.~ Quadrilateral frame type {8}
112  DF  .~.~.~> Diagonally moved jaw
113  DF  .~.~.~> Plural actuating means for one side {1}
115  DF  .~.~.~> Actuator located at corner {1}
118  DF  .~.~.~> Actuated jaw couples perpendicularly related {1}
120  DF  .~.~.~> One couple adjusted and one couple actuated
121  DF  .~.~.~> Adjustment means intermediate ends of side
122  DF  .~.~.~> Adjustment means including attached wedge means {1}
124  DF  .~.~.~> Adjustment means at diagonal corners {1}

DEFINITION

Classification: 269/111

(under subclass 104) Device including four side portions arranged to enclose an area, said side portions may or may not be interconnected, the opposed pairs of side portions including the jaw couples.

(1) Note. This subclass requires: (a) that the positioning means for at least one of the jaw couples includes either: (i) two or more disclosed adjustment* means (e.g., subclasses 141 and 165+), or (ii) two or more disclosed actuating* means (e.g., subclasses 142+ and 216+), or (iii) a combination of at least one adjusting means and at least one actuating means (e.g., subclasses 146 and 188+); and, (b) that the positioning means for the other jaw couple includes: (i) adjustment means, or (ii) actuating means. Therefore, this subclass does not include a device wherein a single adjusting means or a single actuating means is used to position one jaw of one couple, plus a single adjusting means or a single actuating means used to position one jaw of the other couple ("single", as here used, excludes one jaw couple positioned by a combination of adjustment and actuation means, as in subclasses 146 and 188+, as well as excluding plural adjustors or plural actuators, for one jaw couple, as in subclasses 141 and 221+); and, patents disclosing only such

"single" means, for each of the two jaw couples, will remain in subclass 104. See (4) Note under subclass 104.

(2) Note. The four sides of the frame may be in the same plane or they may be in closely adjacent parallel planes.

(3) Note. Each one of the four sides may (a) constitute a jaw, (b) support a movable jaw, (c) support jaw moving means, or (d) comprise any combination of (a), (b) and/or (c).

(4) Note. A "corner", as used in the definitions of the indented subclasses, may be formed by two abutting, articulated, intersecting, or overlapping lateral parts, or it may be merely the point where imaginary extension of two lateral parts would intersect.

(5) Note. The force applied to portions of the frame may be exerted from a point on or outside the periphery of the frame toward an inner portion of the frame, or from some point within the frame toward the periphery of the frame. (6) Note. See "JAW"*. If one corner-angled jaw having nonparallel faces has such faces articulated, or otherwise movable inter se, and each such face has an opposed coacting jaw that is movable relative thereto, then such jaw couples are appropriate for this and indented subclasses such as subclasses 112+ and 124+. However, if there are two generally opposed, corner-angled jaws and each one has a respective pair of nonparallel faces that are fixed inter se, then such an opposed pair of fixed-angle corner-angled jaws are considered to be a single opposed pair of configured jaws, and such structures should be searched elsewhere, e.g., subclasses 126+, 140+, 218+, 265+, etc.

(7) Note. See the accompanying sketches which show that the lateral parts of the frame may vary from (a) merely the pointed ends of screw means to (b) overlapping sides. [figure]

(8) Note. In addition to variations noted in the Notes numbered (3), (4) and (7), immediately above, the individual sides, jaws, or screws, may be pivotally mounted, slidable, or otherwise movable with respect to each other or an underlying supporting structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

37+, for patents to plural holders, and see the notes thereunder.

47+, for patents to a holder insertable within a work aperture.

55+, for patents to a movable holder which may include a quadrilateral frame type holder to grip the work while the holder is moved.

311+, for patents to a work underlying support including means to hold plural supporting blocks.