Other

Microsoft Technology Licensing, LLC

Senco Products, Inc.

Mac Tools, Inc.

Michael L Ernst

William J Kraimer

Carlos R Schoolcraft

Gideon Andreas Yuval

C Mark Leaphart

C Kerwin Braddock

J Kirk Leaphart, Jr

Donald C Ries

Dennis E Stivers

William H Morrison, Jr

Richard C Cummins

Robert E Niehaus

An air plunger is described. The air plunger comprises an upper barrel and a lower barrel slidably received by the upper barrel. An air seal is fixed to the lower barrel and slidably engages with the upper barrel. A nozzle is attached to the lower barrel opposite to the upper barrel. A stop mechanism prohibits the upper barrel from disassociating with the lower barrel.

Compressed air drain opening device

Drain plunger

Plunger bell

Stand

Pneumatic coil nailer

A system for controlling unauthorized access to information distributed to users and, more particularly, for controlling unauthorized access to software distributed to users is provided. One method utilizing the system of the present invention enables the software to be encrypted using a single encryption key and to be decrypted using a multiplicity of 'decryption' keys, each of which is unique to a particular user. The 'decryption' keys are the products of numeric representations of identifying information relating to users and unique user keys generated using the numeric representations and a 'true' decryption key. Since each user receives a unique user key and both the numeric representation and the user key are generated using the identifying information, if the user reveals the numeric representation and the user key (or the product of the numeric representation and the user key), the numeric representation and the user key can be traced to the user who revealed them. Another method utilizing the system of the present invention introduces randomness or pseudo-randomness into the decryption scheme to provide an additional level of security to the scheme.

Method and system for controlling unauthorized access to information

A socket wrench is shown having a socket driver head pinned to a clevis on a shaft. A sleeve is receivable over the shaft end and includes open ended slots pointing away from the clevis. The shaft includes a pin press fit within a cross bore on the shaft end, and the shaft and sleeve are axially slidable relative to each other; where in one position the pin engages one of the slots, and in another position, the shaft and sleeve spin freely of each other. A handle includes an internal bore which is profiled to compressively fit over the sleeve, and a chamber is defined between the sleeve and the end of the internal bore, to provide clearance for the axial movement of the shaft and sleeve.

Flexible head socket wrench

Growing community of inventors

Milford, OH, United States of America

Michael L Ernst