Abstract: A stake removal tool, in one embodiment, includes a link bar (105, 405), a first handle (110, 410) and a second handle (120, 420) coupled to the link bar, a first gripper (130) attached to the first handle, and a second gripper (140) attached to the second handle. Each of the first and second grippers comprise a first surface (231, 241) and a second surface (232, 242) spaced apart by a circumferential face (233, 243), and at least one circumferential ridge (234, 244) protruding from and extending circumferentially along at least a portion of the circumferential face. The at least one circumferential ridge is substantially parallel to the first and second surfaces. In another embodiment, the first and second handles include integral gripping surfaces (539, 549).

Abstract: A stake removal tool, in one embodiment, includes a link bar (105, 405), a first handle (110, 410) and a second handle (120, 420) coupled to the link bar, a first gripper (130) attached to the first handle, and a second gripper (140) attached to the second handle. Each of the first and second grippers comprise a first surface (231, 241) and a second surface (232, 242) spaced apart by a circumferential face (233, 243), and at least one circumferential ridge (234, 244) protruding from and extending circumferentially along at least a portion of the circumferential face. The at least one circumferential ridge is substantially parallel to the first and second surfaces. In another embodiment, the first and second handles include integral gripping surfaces (539, 549).

Abstract: The invention described in this document is a device for pulling nails, specifically those used to secure concrete form boards to cylindrical stakes. In one embodiment the nail pulling device is composed of a handle, or handle attachment feature, that is either attached to, or integral with a saddle having a semi-circular, concave cross section that is swept at a constant radius, thereby, forming a circular segment of approximately 60°. The stake fits inside the semi-circular, concave cross section of the circular segment, which has a radius that is slightly larger than the radius of the stake for the purpose of maintaining the alignment between the device and the stake centerline. When the device is engaged with a nail and supported by a stake, the circular segment provides the extraction force to the nail head when the handle is lifted/pushed towards the stake.

Abstract: This invention relates to a tool for removing stakes from the ground, including those used to secure concrete forms. The tool is composed of two symmetrical handles connected by a link bar utilizing freely rotating joints. The link bar includes a feature to align the invention with the stake. A gripper is attached to each handle enabling the tool to firmly hold the stake. Each gripper is secured to a handle in a position that is slightly off center from the link bar and handle pivot. This eccentricity between the gripper and the link bar/handle pivot axis vectors the vertical force the operator applies to the handles into compressive force exerted on the sides of the stake by the grippers. Thus, the two grippers trap the stake between them and the gripping force they apply to the stake increases as the operator increases the vertical, lifting force.