Other

Otis Elevator Company

Walter L Williams

Arnold Mendelsohn

Donald G McPherson

Don J Kieffer, Jr

A pole stand having a base, a holder removably attachable to the base, and a plurality of stakes to secure the base to the ground. A top surface of the base has a section to store the holder when not in use. A bottom surface of the base has a plurality of stake holders to hold the stakes when not in use. The holder has two tubes attached by link arms to allow the two holders to be adjustable relative to each other. The base also has a central main hole and a plurality of auxiliary holes so that a pole can be inserted through at least one of the tubes and through the main hole so as to be perpendicular to the ground, or through one of the auxiliary holes so as to be non-perpendicular to the ground.

Pole stand

An umbrella holder having a base, a holder removably attachable to the base, and a plurality of stakes to secure the base to the ground. A top surface of the base has a section to store the holder when not in use. A bottom surface of the base has a plurality of stake holders to hold the stakes when not in use. The holder has two tubes attached by link arms to allow the two holders to be adjustable relative to each other. The base also has a central main hole and a plurality of auxiliary holes so that a pole can be inserted through at least one of the tubes and through the main hole so as to be perpendicular to the ground, or through one of the auxiliary holes so as to be non-perpendicular to the ground.

Umbrella stand

A modular plug-in electrical wiring system that includes a pair of intermatable modular units that avoids the presence of a tangled mass of bare wires and wire nuts associated with conventional receptacle systems. A first unit is secured within a wall recess, such as between a pair of building studs, while the second unit slidable engages the first unit and may be removable secured thereto. The system is versatile as it can be used for mounting electrical appliances to a wall/ceiling.

Modular plug-in electrical wiring system

Chute for concrete and insulation

Elevator velocity profile generation is based upon combining an open loop, least time profile for acceleration with a precision closed loop, phase plane control for deceleration. The deceleration phase-plane velocity profile is generated as a modified mirror image of the acceleration profile, and transition from open loop control is within ride quality constraints. Adaptive control permits operating a drive unit closer to its limits without danger of overloading under worst case conditions, which account for a small percentage of the time. Thus, smaller drive units can be used in a given application with minimal impact on performance.

Dynamically generated adaptive elevator velocity profile

Two signals are provided for dissimilar inner and outer door zones in either direction of elevator travel by a vane (20) of length (d) mounted to the elevator hoistway at a landing, and three sensors (26,28,30) mounted to the elevator cab; an upper sensor (26), a lower sensor (30) disposed at a distance less than d below the upper sensor, and a middle sensor (28) disposed midway between the upper and lower sensors. The contemporaneous provision of vane/sensor proximity signals from the upper and middle sensors is indicative of the cab being in the outer door zone for the landing when the cab is traveling in an upward direction. The contemporaneous provision of vane/sensor proximity signals from the lower and middle sensors is indicative of the cab being in the outer door zone for the landing when the cab is traveling in a downward direction. The contemporaneous provision of vane/sensor proximity signals from the upper and lower sensors is indicative of the cab being in the inner door zone for the landing when the cab is traveling in either direction.

Elevator inner and outer door zone sensor arrangement

A debris-retrieving cane comprising a longitudinal cane shaft member having an upper handle portion and effectively having a lower ground-surface-engageable portion, with said cane shaft member being provided adjacent to the bottom end thereof with a hollow debris-receiving receptacle means and effectively with debris-movement means for use in moving and manipulating a quantity of debris relative to the debris-receiving receptacle means into received relationship for removal of received and retrieved debris for subsequent emptying elsewhere. The entire device closely simulates and is capable of use as an effective cane concurrently with and independent of its use as a debris retriever and is also capable of use as an auxiliary weapon in the event that the person carrying the device is assaulted, attacked, or threatened.

Growing community of inventors

Los Angeles, CA, United States of America

Walter L Williams