Bretford Manufacturing, Inc.

Pelstar, LLC

Harrison Yuan

Philip John Sopicki

John W Poremba

Tad Petrick

Brian Wixted

Jim Fisher

Mike Hansen

Stephen Niemczak

Anthony Harvey

Jerome Montgomery, Jr

Philip Sopicki

A computer cart has segregated computer storage areas and adapter/cord management areas. This enables the adapters and cords to be stored in an orderly fashion and also prevents the cords and adapters from being accessed or removed from the cart when the computers are being accessed. In one embodiment, extensions of shelves on which the computers are stored extend through a dividing panel into a rear compartment of the cart to create AC adapter shelves for storage of the AC adapters. In another embodiment, the AC adapters are stored in bins in a separate compartment and cords from the AC adapters extend through a dividing panel to an area designed to hold the computers, to enable the computers to be plugged in to be charted while stored in the cart.

Computer cart

An electrical system for a computer cart enables power to be diverted between electrical channels within the cart using an intelligent round robin charging scheme. All power may be diverted to individual channels one at a time for short charging intervals. When a selected primary channel does not require all available power within the cart, excess power is provided to a secondary channel. All three channels may likewise share power if excess is available. Relays are used to allow power to be controlled to the individual channels. Current sensors on each channel sense an amount of current used by the channel. The output of the current sensor is digitized and integrated to determine how much current is being used by the channel. The current is used by the control to detect uncharged laptops and to selectively divert power between channels to optimize use of power within the computer cart.

Electrical system for a computer cart

Portion of a scale

A system for maintaining a large number of Handheld Electronic Devices is implemented as a carrying case having circuitry configured to connect to the Handheld Electronic Devices to enable the HEDs to be charged and synchronized. The carrying case has a central area configured to hold the circuitry for charging and synchronizing the HEDs, and a pair of divider structures on either side of the central area to hold the HEDs in a protective manner while stored in the carrying case. A grounded protective coating is applied to the interior of the carrying case to dissipate electromagnetic radiation generated by the circuitry and/or HEDs within the carrying case.

Carrying case

A device and method for determining the length of an object. The device includes a height rod assembly with a uniform marker row and a non-uniform marker row detected by sensors to determine the location of the height rod assembly which is translated to the height or length of the measured object. The uniform marker row includes uniform markers of equal length spaced apart by a uniform length. The non-uniform marker row is divided into equal sections, each section including a non-uniform marker with a unique length adjacent to a non-uniform spacing with a unique length. Upon startup, a controller determines the location of the height rod assembly within a set distance of movement regardless of the position of the height rod assembly. The height rod assembly is telescoping rod assembly including sensors, uniform marker row, and non-uniform marker row for each height rod section.

Digital height rod

Support system for a computer cart

Growing community of inventors

Buffalo Grove, IL, United States of America

Harrison Yuan