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US 4,702,447 AGranted
Clamp device
OwnerSamuel M. Westwood, IIIinventor
Life of this patent
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OwnerSamuel M. Westwood, IIIinventor
Estimating the term…
A clamp device for interconnecting two entities, one of which may be a support and the other of which may be an item to be supported with the clamp device including a stem and a plurality of jaws connected to the stem at one end thereof, a hand manipulated nut threaded on the stem for causing the jaws to engage and be connected to one of the two entities and means on the other end of the stem to engage and be connected to the other of the entities. The jaws are constructed in various shapes, sizes, configurations and arrangements with the closing force for the jaws being provided by manual rotational movement of the screw-threaded nut which has a surface engaging with an extension surface on the jaws to move the jaws to entity engaging position and retain them in that position. The other end of the stem has various structures providing connection to the other entity and the stem also includes an aperture in one embodiment to receive and retain a supporting rod for a flag or other similar structure. In another embodiment the stem includes spaced legs with a pin extending therebetween and locked to one of the legs with the pin extending through a grommet or other aperture in the second entity.
A clamp device for interconnecting two entities comprising a longitudinally extending stem, a pair of jaws connected to one end of the stem with at least one of the jaws being movable in relation to the stem and the other of the jaws, means on the stem movable into engagement with the jaws to position the jaws in connecting engagement with one of the entities, and means on the stem for connection with the other of the entities, said means engaging the jaws including an internally threaded nut mounted on an externally threaded portion of the stem and being independent of the means on the stem for connection with the other of the entities, said movable jaw being mounted on the stem with a pivot pin to enable pivotal movement of the movable jaw, said pivotal jaw including a surface extending laterally of the pivot axis of the jaw engageable by the nut to exert rotational force thereon for pivoting the movable jaw toward the other jaw, said nut having a diameter whereby the periphery of the nut is disposed outwardly at least sufficiently to be substantially in alignment with the outer edge of the laterally extending surface at its maximum lever arm relationship to said pivot pin for moving the movable jaw toward engagement with one of the entities to apply maximum torque and clamping force to the movable jaw and apply maximum locking force to the movable jaw when in clamped position.
A clamp device for interconnecting two entities comprising a longitudinally extending stem having an externally threaded poertion, a pair of jaws connected to one end of the stem, means on the stem movable into engagement with the jaws to position the jaws in connecting engagement with one of the entities, and means on the stem for connection with the other of the entities, said means engaging the jaws including an internally threaded nut mounted on said externally threaded portion of the stem and being rotatable independent of the means on the stem for connection with the other of the entities, said jaws being mounted on the stem with pivot pins to enable pivotal movement of the jaws, said pivotal jaws including surfaces extending laterally of the pivot axes of the jaws engageable by the nut to exert rotational force thereon for pivoting the jaws towards each other, each of said surfaces including a generally flat surface oriented in aligned relation to each other and generally perpendicular to the longitudinal axis of the stem when the jaws are engaged with one of the entities, said nut being generally in the form of a circular disc having a flat surface engaging the flat surfaces on the jaws and being provided with a diameter substantially greater than the diameter of the stem to enable manual rotation of the nut for use of the clamp device without tools, the diameter of the nut being substantially equal to the maximum distance between the edges of the flat surfaces most remote from the pivot pins to apply maximum force at maximum lever arm as the jaws are moved toward engagement with one of the entities and providing maximum locking action due to the lower flat side of the nut engaging the total surface of the flat surfaces on the jaws.
Dependencies are inferred from the claim text.