US PATENT SUBCLASS 294 / 86.1
.~ Well type

Current as of: June, 1999
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294 /   HD   HANDLING: HAND AND HOIST-LINE IMPLEMENTS

86.4  DF  GRAPPLE {18}
86.1.~ Well type {10}
86.11  DF  .~.~> Basket-forming
86.12  DF  .~.~> Combined insertable and surrounding grappling means
86.13  DF  .~.~> With separate lateral positioning means
86.14  DF  .~.~> With separate grapple-setting operator {1}
86.16  DF  .~.~> With laterally movable grapple support
86.17  DF  .~.~> With releasing means {4}
86.23  DF  .~.~> With impact means
86.24  DF  .~.~> Expanding grapple means {1}
86.26  DF  .~.~> Contracting grappling means (e.g., overshot) {6}
86.34  DF  .~.~> Including washover or cutover means

DEFINITION

Classification: 294/86.1

(under subclass 86.4) Grapples that are intended to be used in a well, the grapple having a diameter only slightly less than the diameter of the well for the purpose of retrieving or placing an object in the well.

(1) Note. Processes of using a well grapple in a well are classified in Class 166, Wells, subclass 301.

(2) Note. A mere pipe joint or coupling of general utility, such as a screw threaded joint, is not included and will be

found in appropriate subclasses in Class 285, Pipe Joints or Couplings. However, where a retrieving device for a stuck object includes a washover or cutover means as defined in subclass 86.34 below, the means making the connection with the stuck object may be a mere pipe joint or coupling of general utility such as a screw threaded joint. Such mere joint or coupling is considered to be a "grapple" for purposes of classification in subclass 86.34 but is not considered a "grapple" for purposes of classification in any other subclass under this definition.

(3) Note. The combination of a metal cutting means for cutting away material around a stuck object and a retrieving means for such object is included under this definition, see especially subclass 86.34. The combination of a broadly recited washing means or earth cutting means for removing matter around a stuck object is also included under this definition, see especially subclass 86.34, though the recitation of a specific earth boring means causes classification in Class 175, Boring or Penetrating the Earth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19.1+, for devices other than those under the definition of subclass 86.1 having a pole and a grappling means attached thereto. 65.5, for magnet type well grapples.

66.1+, for devices other than those under the definition of subclass 86.1 for recovering submerged objects.

SEE OR SEARCH CLASS

166, Wells,

301, for processes for grappling objects in a well, subclass 98 for a grapple with a well anchored lifting means, subclass 99 for well devices combined with junk retrieving means and for certain types of junk retrieving means, as set forth in the definition of subclass 99, subclasses 118+ and 206+ for expanding anchors used in a well, and subclasses 123+, 143+ and 181+ for detachable setting means for well devices.

175, Boring or Penetrating the Earth,

244+, for earth boring means including a grapple for a core of earth material. See the reference to Class 294 in the class definition of Class 175 for the line between Classes 294 and 175.

188, Brakes, particularly

67,.

285, Pipe Joints or Couplings, appropriate subclasses for

pipe connections of general utility, and particularly

384+, 386+ and 390+ for screw threaded joint connections. See (2) Note above. 403, Joints and Connections, appropriate subclasses for joints of general utility.

413, Sheet Metal container Making,

58+,.

901, Robots, subcollections 31+ for gripping devices useable on robots.