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| Number | Title | Issue Date |
| 5501570 | Anti-rollback mechanism for a loader mechanism of an off-highway implement An anti-rollback mechanism is provided for an off-highway implement having a mobile frame and a loader mechanism including a bucket pivotally attached between lift arms of the loader mechanism. The lift arms are connected to the frame of the implement and... | 03/26/1996 |
| 4946337 | Parallel link robot arm In a precision operable robot arm comprising four levers pivotally connected with each other into a paralle arranged link form, when one ends of first and second levers aligned vertically, for example, are driven respectively by two motors such that the l... | 08/07/1990 |
| 4861224 | Aerial lift including overload sensing system An aerial lift having means for sensing a combination of the load placed on the upper end of the upper boom and the relative position of the upper boom with respect to horizontal and for generating a signal or interrupting supply of hydraulic fluid to the... | 08/29/1989 |
| 4795305 | Cable operated loader apparatus A portable bucket loader attachment can be operated by a conventional garden tractor or pickup truck. The loader has a wheel mounted frame having a forwardly extending boom carrying a bucket rotationally mounted at the end of the boom. A rotational contro... | 01/03/1989 |
| 4645408 | Uncontrolled angular displacement compensating device for industrial robot An uncontrolled angular displacement compensating device for compensating an uncontrolled angular displacement of a robot hand mounted on a robot hand mounting link of a robot hand shifting linkage of an industrial robot, resulting from the expansion or c... | 02/24/1987 |
| 4494973 | Take-out arm for bottle forming machine There is herein disclosed a take-out arm mechanism for a glass forming machine particularly suited for the simultaneous handling of four or more containers wherein the arm is provided with an integrally molded and formed counterweight carried thereby to c... | 01/22/1985 |
| 4398863 | Pick and place robot A pick and place robot is provided in which support 10 carries a rotatable turret 12, which in turn has one end of the pick and place arm 14 pivotally carried therefrom, the arm carrying a working tool 16 at its other end supported in rotatable relation a... | 08/16/1983 |
| 4375344 | Bucket leveling mechanism A bucket leveling mechanism that automatically operates a tilt cylinder for pivoting the bucket so that the attitude of the bucket remains substantially constant as the bucket lift arms are raised. Two push-pull cable assemblies are provided; one cable as... | 03/01/1983 |
| 4188165 | Loaders for use in tunnels A loader comprises a bucket at the end of a dipper arm swinging from a cross-member on an upstanding yoke. The dipper arm swings between the uprights to the yoke for the bucket to pick up material on one side and deposit it on the other side. A winch actu... | 02/12/1980 |
