Other

Kaleva Design

Ben Wade Oakes Dickinson Iii Et Al.

Robert D Wilkes, Jr

Paul S Turin

Robert Wayne Dickinson

Ben W Dickinson

Charles S Mackey

Robert G Ullrich

Sherman C May

Richard R Jensen

Rowe Hakes

Brian S Murray

Michael J Pesavento

Lawrence Hitchcock

Kelly M Brosnan

A messaging system is disclosed, delivery of messages being dependent upon the location of the recipient, the number of recipients being unlimited. The message transmitter may be fixed or mobile. The recipient may be either fixed or mobile, but must have knowledge of its own position. The transmitter broadcasts in radio frequencies (or other convenient medium) three pieces of information per message: a location, a trigger distance, and the message. The recipient, knowing its own position, calculates the actual distance to each location being broadcast. If the actual distance is less than the trigger distance, then the message is displayed to the recipient. In this manner, only messages that are relevant to the recipients' position are displayed, and messages relevant to other positions are ignored.

Position dependent messaging system

An improved safety needle, including a needle base, for fixing therein a rigid needle containing a hollow hub at one end, a hollow needle connected thereto and a sharp needle tip at the other end, the base defined by a proximal end and a distal end spaced-apart therefrom, the distal end of the needle base having formed therethrough a first bore concentric to the needle and covering the sharp needle tip, and a cap covering the first bore and rotatably positioned thereover, having formed therethrough a second bore, wherein the cap is rotatable between a first, safe position placing the first and second bores out of alignment and preventing passage of the needle and the sharp needle tip therethrough, and a second, armed position placing the first and second bores in alignment to allow passage of the needle therethrough to expose the sharp needle tip.

Safety needle

Remote control

A braking system is disclosed for foot-bound roller skates, particularly in-line roller skates, consisting of a method and apparatus for activating the brake, continuously applying braking force while the brake is activated without the application of force to the activating apparatus, and stowing the brake. Preferably, the brake deploys to serve as the aft point on which the skate rides, along with one or more forward wheels.

Roller skate braking device

Hydraulic drilling apparatus and method in which a drill head is driven toward the formation being drilled by the force of the drilling fluid, and the rate of advancement or penetration of the drill head is controlled by entrapping a fluid in a chamber to resist advancement of the drill head and allowing a controlled amount of the entrapped fluid to pass out of the chamber through an orifice to permit the drill head to advance at a controlled rate.

Hydraulic drilling method with penetration control

Hydraulic drilling method and apparatus in which the drilling fluid itself is utilized to control the direction in which a hole is bored in the earth. The drilling fluid is discharged through a plurality of forwardly facing nozzles which are inclined at different angles about the axis of the drill head, and the drilling fluid is selectively applied to the nozzles by a rotatable valve member to control the direction in which the hole is cut.

Hydraulic drilling apparatus and method

Hydraulic drilling method and apparatus in which the drilling fluid itself is utilized to control the direction in which a hole is bored in the earth. The orientation of the drill head is monitored by tilt and roll sensors, and the discharge of drilling fluid through radially or obliquely directed nozzles is controlled by poppet valves in accordance with the orientation to control the direction in which the hole is cut.

Hydraulic drilling apparatus and method suitable for use in a variety of applications including the drilling of deep holes for oil and gas wells and the drilling of vertical, horizontal or slanted holes, drilling through both consolidated and unconsolidated formations, and cutting and removing core samples. The drill head produces a whirling mass of pressurized cutting fluid, and this whirling fluid is applied to a discharge nozzle to produce a high velocity cutting jet. The cutting action is enhanced by abrasive material in the drilling fluid. The direction of the borehole is controlled by controlling the discharge of the drilling fluid either in side jets directed radially from the distal end portion of the drill string which carries the drill head or in a plurality of forwardly directed cutting jets.

Growing community of inventors

Berkeley, CA, United States of America

Robert D Wilkes, Jr