Other

Trimble Navigation Limited

George E Long

Daniel R Asmussen

Martin J Kenney

An improved chain stitch sewing machine that includes a stitch skip mechanism that is activated by the sewing machine operator such that the operator may cause the sewing machine to skip stitches as desired.

Chain stitch machine

A method and apparatus for use in a security system for controlling access to mobile enclosures and cargo containers. Navigtational tracking systems such as LORAN and Global Positioning Systems are used to produce a real time geographic position signal. A programmable data processor is used to compare a preset geographic position signal to the real time geographic position signal. Upon favorable comparison of the real time and preset signals, an enabling signal is produced which permits operation of the security system to gain access to the container.

Method and apparatus for global position responsive security system

A self-contained theft and vandalism deterrent system for equipment security includes sensors (12) for detecting conditions to which an alarm (24, 26, 28, 50) is responsive. The analog signals from the sensors (12) are serially delivered by a multiplexer circuit (16) when they are then directed to a network (20) for conversion to digital signals. The digital signals are delivered to a micro processor (22) where the signals are evaluated to determine if an alarm condition exists. The sensing means (12) include sound and vibration detectors for monitoring the ambient envelope. The micro processor (22) includes built in reprogramming and comparator circuits for varying the level at which a given condition will trigger an alarm response.

Signalling system with ambient condition reference monitoring

A rotary broom attachment for a motor grader, which has a mold board and structure to adjust the mold board for vertical elevation, side shift and rotary position about vertical and horizontal axes, is mounted behind and parallel to the mold board and has independent adjustment and control structure for positioning, and side shifting, if desired, of the broom relative to the mold board. Sensors are used to signal automatic shifting of the broom vertically or in side shift to avoid interference with the motor grader structure as well as obstacles in the path of the broom. The downward pressure of the broom is controlled by the proportional lift applied thereto by a hydraulic lift mechanism.

Growing community of inventors

Monroe, WA, United States of America

George E Long