Single lever control for multi-valve operation
AssigneeCaterpillar Tractor Co.
InventorRobert Casey
Life of this patent
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Abstract
An articulated handle comprises a firm arm pivotally mounted on a stationary support and a second arm pivotally mounted on the first arm to pivot perpendicular relative to pivotal movements of the first arm. A lever is also pivotally mounted on the support and a connecting rod is pivotally interconnected between the lever and the second arm. The valve stems of adjacent control valves are operatively connected to the first arm and to the lever, respectively, whereby movement of the handle in one direction will actuate one valve and movement of the handle in a second, perpendicular direction will reciprocate the other valve.
Claims13
A single lever control adapted to actuate separate valves comprising
- a stationary support
- an articulated handle comprising a first arm pivotally mounted on said support for pivotal movement about a first axis and a second arm pivotally mounted on said first arm for pivotal movement about a second axis disposed transversely relative to said first axis,
- an extension, adapted for attachment to a stem of a first valve, connected to said first arm by interengaging coupling means and extending transversely of said first axis, and
- connecting means, adapted for attachment to a stem of a second valve, connected to said second arm, said connecting means being pivotally connected to said support for pivotal movement about a third axis disposed transversely of said second axis and at least generally parallel to said first axis.
A lever control, having an articulated handle comprising a first arm pivotally mounted therein and a second arm pivotally mounted on said first arm for pivotal movement transverse to pivotal movement of said first arm, mounted in an enclosure comprising a cover plate defining an arcuate slot therethrough and flexible sealing means, defining a normally closed elongated slit therethrough, normally covering said slot, the second arm of said handle protruing through said slot and said slit and said first arm mounted for pivotal movement about an axis which is the center for a radius at least generally defining said arcuate slot.
A lever control, having a handle pivotally mounted therein, mounted in an enclosure comprising a cover plate defining a slot therethrough and flexible sealing means, defining a normally closed slit therethrough, normally covering said slot, said handle protruding through said slot and said slit and mounted for pivotal movement about an axis, disposed within said enclosure, which is the center for a radius at least generally defining an arcuate portion of said handle which protrudes through said slot and said slit whereby the arcuate path of travel of said arcuate portion through said slot and said slit will remain substantially constant upon manipulation of said handle.
A single lever control adapted to actuate separate valves comprising
- a stationary support,
- an articulated handle comprising a first arm pivotally mounted on said support for pivotal movement about a first axis and a second arm pivotally mounted on said first arm for pivotal movement about a second axis disposed transversely relative to said first axis,
- an extension, adapted for attachment to a stem of a first valve, connected to said first arm by interengaging coupling means and extending transversely of said first axis, said interengaging coupling means comprising means forming an aperture in said first arm and a pin, extending in the general direction of said first axis, secured to said extension and positioned in said aperture, and
- connecting means, adapted for attachment to a stem of a second valve, pivotally connected to said support and further pivotally connected to said second arm.
A single lever control adapted to actuate separate valves comprising
- a stationary support,
- an articulated handle comprising a first arm pivotally mounted on said support for pivotal movement about a first axis and a second arm pivotally mounted on said first arm for pivotal movement about a second axis disposed transversely relative to said first axis,
- an extension, adapted for attachment to a stem of a first valve, connected to said first arm and extending transversely of said first axis,
- connecting means, adapted for attachment to a stem of a second valve, pivotally connected to said support and further pivotally connected to said second arm, and
- an enclosure having said single lever control mounted therein, said enclosure comprising a cover plate defining an elongated slot therethrough and flexible sealing means, defining a normally closed elongated slit therethrough, normally covering said slot, the second arm of said handle protruding through said slot and said slit, an arcuate portion of said second arm, protruding through said slit, being at least generally defined by a radius having said second axis at its center.
A single lever control adapted to actuate separate valves comprising
- a stationary support
- an articulated handle comprising a first arm pivotally mounted on said support for pivotal movement about a first axis and a second arm pivotally mounted on said first arm for pivotal movement about a second axis disposed transversely relative to said first axis,
- an extension, adapted for attachment to a stem of a first valve, connected to said first arm and extending transversely of said first axis,
- connecting means, adapted for attachment to a stem of a second valve, pivotally connected to said support and further pivotally connected to said support for pivotal means being pivotally connected to said support for pivotal movement about a third axis disposed transversely of said second axis and at least generally parallel to said first axis and
- an enclosure having said single lever control mounted therein, said enclosure comprising a cover plate defining an elongated slot therethrough and flexible sealing means, defining a normally closed elongated slit therethrough, normally covering said slot, the second arm of said handle protruding through said slot and said slit and wherein an arcuate portion of said cover plate and said slot are at least generally defined by a radius having said first axis as its center.
Dependencies are inferred from the claim text.