Other

James D Polk

Yefim I Safris

Joseph Ivan Jaroff

A method of using a foot operable door opener which operates, without using one's hands, and without electrical assist. Signage is provided on the door showing that the entrance cycle is initiated by the entrant stepping on a pedal, actuating an initial delay, allowing the entrant to comfortably step aside to clear the path of swinging of the door, while a second delay assembly provides for a delayed release of the drive wheel at an end of the opening cycle, to allow ergonomic passage, which allows the entrant to comfortably step through an open portal of the door before integrated closing devices close the door behind the entrant.

Method of making and using a foot operable door opener

A foot operable door opener operates, without using one's hands, and without an electrical assist. The entrance cycle is initiated by stepping on a pedal. This force drives the pedal a &#xbc; turn, engaging a soft wheel to open the door. The pedal is hard linked to a crank arm which goes into a unidirectional crank shaft hub to turn the wheel. The downward pressure from the pedal pivots a ratcheted hinge connected to a bracketed spring-loaded wheel assembly to keep constant pressure to the ground. A gear box or multiple pumps of the pedal turns the wheel two or more 360 degrees rotations, opening the door to allow the entrant to pass until the foot pedal is dis-engaged. This action releases the ratcheting hinge mechanism, allowing the spring assisted wheel assemble to rotate to its original up position, releasing the wheel from the ground, allowing the door to close.

Foot operable door opener

An adjustable workpiece holder has at least one jaw member holding a plurality of finger elements lengthwise in parallel therein. The finger elements have side surfaces with serrations formed over a given length thereof. The serrations allow the finger elements to be selectively adjustable in lengthwise position relative to adjacent finger elements, so that they can conform to the contour of the workpiece. The finger elements may have a total width that fits snugly within a recess or pocket of the jaw member. A releasable clamp applies firm lateral pressure to the finger elements to prevent any slippage. The jaw member may be part of a machining assembly or retrofitted to one or both sides of a standard milling or drill press vise. It may also be adapted for use in forming, stamping, bending, or shaping material, or for profiling or as a template for holding or positioning workpieces in other applications.

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Hoboken, NJ, United States of America

James D Polk