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Class Information
Number: 294/88
Name: Handling: hand and hoist-line implements > Grapple > Magnet- or piston-controlled
Description: Devices in which the operation of the grapple is caused by magnetic means or fluid-operated pistons.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4473249 |
Extensible manipulator unit |
Sep. 25, 1984 |
| 4472348 |
Operating devices for control rods in a nuclear reactor |
Sep. 18, 1984 |
| 4461505 |
Suspended load rotating lifter |
Jul. 24, 1984 |
| 4456293 |
Article gripping apparatus |
Jun. 26, 1984 |
| 4452479 |
Gripping device with interdigitating, articulate fingers |
Jun. 5, 1984 |
| 4451194 |
Integral heel tree length grapple |
May. 29, 1984 |
| 4449745 |
Toggle action jaw-type gripper |
May. 22, 1984 |
| 4448405 |
Versatile gripping device |
May. 15, 1984 |
| 4445719 |
Release mechanism for a cylindrical object recovery device |
May. 1, 1984 |
| 4444536 |
High speed well working apparatus |
Apr. 24, 1984 |
| 4444425 |
Cylindrical object recovery device |
Apr. 24, 1984 |
| 4441852 |
Parts handling machine |
Apr. 10, 1984 |
| 4441749 |
Elevator for casing |
Apr. 10, 1984 |
| 4439090 |
Workpiece handling apparatus |
Mar. 27, 1984 |
| 4439092 |
Apparatus for unloading workpiece from press |
Mar. 27, 1984 |
| 4435119 |
Lift truck load clamp having power-actuated pivotal subframe for handling paper rolls |
Mar. 6, 1984 |
| 4432578 |
Closed pressure actuated system for placement bucket |
Feb. 21, 1984 |
| 4431365 |
Pressure control mechanism for a grapple skidder |
Feb. 14, 1984 |
| 4426110 |
Continuous rotation hydraulic grapple |
Jan. 17, 1984 |
| 4421451 |
Workpiece gripping mechanism for industrial robots |
Dec. 20, 1983 |
| 4416480 |
Pneumatic release for load hook |
Nov. 22, 1983 |
| 4405168 |
Clamping assembly for lifting heavy objects having a bulbous engagement portion |
Sep. 20, 1983 |
| 4403897 |
Self-centering clamp for down-hole tubulars |
Sep. 13, 1983 |
| 4402133 |
Contact puller |
Sep. 6, 1983 |
| 4401422 |
Chuck assembly in a loader of a tire vulcanizer for conveying and inserting green tires |
Aug. 30, 1983 |
| 4401407 |
Grasping apparatus and collection vehicle |
Aug. 30, 1983 |
| 4398761 |
Device for lifting and tilting concrete panels |
Aug. 16, 1983 |
| 4397495 |
Automatic grip control circuit for a grapple mechanism |
Aug. 9, 1983 |
| 4397605 |
Mechanized stand handling apparatus for drilling rigs |
Aug. 9, 1983 |
| 4396215 |
Log grapple device |
Aug. 2, 1983 |
| 4383789 |
Article automatic storage and retrieval apparatus |
May. 17, 1983 |
| 4383795 |
Bag transfer apparatus |
May. 17, 1983 |
| 4382624 |
Grapple pivot snubber |
May. 10, 1983 |
| 4381872 |
Remote controlled clamshell bucket apparatus and method of using same |
May. 3, 1983 |
| 4381169 |
Manipulator |
Apr. 26, 1983 |
| 4379674 |
Load skidding vehicle having a positionally biased grapple |
Apr. 12, 1983 |
| 4368913 |
Industrial robot having a gripping device |
Jan. 18, 1983 |
| 4367891 |
Industrial robot with a gripping mechanism |
Jan. 11, 1983 |
| 4365928 |
Fluid power connector system for manipulator |
Dec. 28, 1982 |
| 4360302 |
Hydraulic hose slack adjustor apparatus |
Nov. 23, 1982 |
| 4358147 |
Mounting and actuating apparatus for tongs |
Nov. 9, 1982 |
| 4350381 |
Gripper with serially pivoted fingers |
Sep. 21, 1982 |
| 4348044 |
Article gripping apparatus |
Sep. 7, 1982 |
| 4345866 |
Loader-unloader system for work pieces |
Aug. 24, 1982 |
| 4343590 |
Loader for a machine tool |
Aug. 10, 1982 |
| 4340249 |
Jar stabilizer for pick-up assembly |
Jul. 20, 1982 |
| 4336926 |
Workpiece manipulator |
Jun. 29, 1982 |
| 4334817 |
Back loader for big hay bales |
Jun. 15, 1982 |
| 4333676 |
Rotational mechanism for an excavator grab bucket |
Jun. 8, 1982 |
| 4327943 |
Material handling bucket arrangement |
May. 4, 1982 |
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