DOOR LOCKING DEVICE FOR DEBRIS TANK
First Claim
1. A door locking device for hydro excavation equipment comprising a debris tank having an open end and a door pivotally connected thereto, the door locking device comprising:
- a grapple support housing secured to the door and having a first side and an opposing second side;
a lower gripping jaw having a lower pin coupled between the first side and the second side of the grapple support housing defining a lower axis about which the lower gripping jaw is configured to rotate;
an upper gripping jaw having an upper pin coupled between the first side and the second side of the grapple support housing defining an upper axis about which the upper gripping jaw is configured to rotate;
a yoke having a first end coupled to proximate ends of the lower and upper gripping jaw; and
an actuator coupled to a second end of the yoke and configured to extend and retract the yoke to cause the lower and upper gripping jaws to rotate in response thereto about the lower axis and the upper axis, respectively.
4 Assignments
0 Petitions
Accused Products
Abstract
A door locking device for hydro excavation equipment. The door locking device includes a grapple support housing secured to a door of a debris tank, a lower gripping jaw having a lower pin defining a lower axis about which the lower gripping jaw is configured to rotate, and an upper gripping jaw having an upper pin defining an upper axis about which the upper gripping jaw is configured to rotate. The locking device also includes a yoke having a first end coupled to proximate ends of the lower and upper gripping jaw, and an actuator coupled to a second end of the yoke and configured to extend and retract the yoke to cause the lower and upper gripping jaws to rotate in response thereto about the lower axis and the upper axis, respectively.
7 Citations
20 Claims
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1. A door locking device for hydro excavation equipment comprising a debris tank having an open end and a door pivotally connected thereto, the door locking device comprising:
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a grapple support housing secured to the door and having a first side and an opposing second side; a lower gripping jaw having a lower pin coupled between the first side and the second side of the grapple support housing defining a lower axis about which the lower gripping jaw is configured to rotate; an upper gripping jaw having an upper pin coupled between the first side and the second side of the grapple support housing defining an upper axis about which the upper gripping jaw is configured to rotate; a yoke having a first end coupled to proximate ends of the lower and upper gripping jaw; and an actuator coupled to a second end of the yoke and configured to extend and retract the yoke to cause the lower and upper gripping jaws to rotate in response thereto about the lower axis and the upper axis, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for hydro excavation comprising:
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a debris tank; a door pivotally secured over an open end of the debris tank; a door locking device comprising a grapple support housing secured to the door and having a first side and an opposing second side, a lower gripping jaw having a lower pin coupled between the first side and the second side of the grapple support housing defining a lower axis about which the lower gripping jaw is configured to rotate, an upper gripping jaw having an upper pin coupled between the first side and the second side of the grapple support housing defining an upper axis about which the upper gripping jaw is configured to rotate, a yoke having a first end coupled to proximate ends of the lower and upper gripping jaw, and an actuator coupled to a second end of the yoke and configured to extend and retract the yoke to cause the lower and upper gripping jaws to rotate in response thereto about the lower axis and the upper axis, respectively; and a locking bar mounted inside the debris tank and orientated to receive distal ends of the lower and upper gripping jaws grip thereto to lock the door over the open end of the debris tank when closed. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A door locking device for a debris tank comprising:
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a grapple support housing having a first side and an opposing second side; a lower gripping jaw having a lower pin coupling the lower gripping jaw to the grapple support housing defining a lower axis about which the lower gripping jaw is configured to rotate; an upper gripping jaw having an upper pin coupling the upper gripping jaw to the grapple support housing defining an upper axis about which the upper gripping jaw is configured to rotate; a yoke having a first end coupled to proximate ends of the lower and upper gripping jaw; and an actuator coupled to a second end of the yoke and configured to extend and retract the yoke to cause the lower and upper gripping jaws to rotate in response thereto about the lower axis and the upper axis, respectively, to lock a door over an open end of a debris tank.
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Specification