Dell Products Inc.

Wayne Iltis

Donald C Guthan

Robert Hunter Robertson

Jay William Gage

An ink jet cartridge which includes an ink jet housing including a first valve and a primer portion coupled to the ink jet housing and covering the first valve is disclosed The primer portion includes a priming bulb and a second valve in the priming bulb, air flowing into the ink jet housing via the first bulb when the priming valve is actuated, air flowing into the priming portion via the second valve when the priming bulb is released.

Integrated ink cartridge primer bulb

Information handling system peripherals that use a heating element are protected from catastrophic failure due to overheating by a thermal failsafe associated with the heating element that fails the heating element if excessive temperatures are reached. For instance, the failsafe releases the vacuum from a heating element bulb so that the application of power to the filament of the heating element bulb oxidizes the filament resulting in failure of the filament and ceasing of generation of heat. The failsafe includes a melting agent, such as wax or solder, which seals an opening in the bulb unless a thermal runaway temperature is reached in excess of a desired operating temperature. Alternatively, the failsafe includes an expanding agent, such as a ceramic or a liquid-filled bubble, which releases the vacuum by fracturing an opening in the bulb at the thermal runaway temperature. The thermal runaway temperature is selected to induce failure before catastrophic overheating of the peripheral.

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Austin, TX, United States of America

Wayne Iltis