Gould Inc.

Ronald J Geil

Robert A Carmo

Nicholas R Underwood

Richard A Daniel

Richard E Tinker

Lamonte A Crabtree

Richard K Chesson

A locking assembly for releasably securing an electronic module within a host instrument comprising a body portion, aligning elements for aligning the body portion relative to the host instrument and a fastening member associated with the body portion for mounting the body portion to the host instrument. The fastening member is operable to gradually urge the body portion in a direction for electrical engagement between the module and the host instrument. A latch member is mounted to the fastening member and a frictional element is disposed between the fastening member and the latch member. The frictional element frictionally engages the fastening member and the latch member is operable to cause the latch member to move with the fastening member as a result of the frictional engagement therebetween. Movement of the latch member is limited between a first position wherein the latch member projects outward from the body portion and is operably aligned to engage a first surface on the module and a second position wherein the latch member is removed from alignment with the module. The latch member is movable to the first position when the fastening member urges the body portion in the direction of electrical engagement and is movable to the second position when the fastening member urges the body portion in a direction opposite the direction for electrical engagement.

Locking device for electronic module

A microprocessor controlled micro-stepping chart drive circuit is disclosed. The invention comprises a step clock system, a micro-processor controller and a motor drive circuit. A speed selector establishes a numerical constant within the controller. This numerical constant is decremented down with each pulse of the step clock. When the counter reaches zero, the motor drive circuit is updated. Therefore, the time between updates of the motor drive circuit is a function of the value of the numerical constant.

Microprocessor controlled micro-stepping chart drive

A device is disclosed for use with adjustable rotary controls such as potentiometers that have a push and/or pull feature to provide a means for locking the control knob and to provide varying amounts of drag force to aid in fine adjustments. A locking shoe assembly having integral locking shoes with cam surfaces is attached to the control panel with the rotary control shaft extending through its center. A locking knob with internal cams fits over the locking shoe assembly and is held in place with an annular retention ring. A control knob with an integral land surface is attached to the rotary shaft and extends into the locking shoe assembly. Rotation of the locking knob engages the various cam surfaces thus binding the land surface and the control knob.

Molded plastic control lock knob with push and/or pull feature

A device is disclosed for use with adjustable rotary controls such as potentiometers to provide a means for locking the control knob and to provide varying amounts of drag force to aid in fine adjustments. A locking shoe assembly having integral locking shoes with cam surfaces is attached to the control panel with the rotary control shaft extending through its center. A locking knob with internal cams fits over the locking shoe assembly. A control knob with an integral land surface is attached to the rotary shaft, holds the locking knob in place and extends into the locking shoe assembly. Rotation of the locking knob engages the various cam surfaces thus binding the land surface and the control knob.

Molded plastic control lock knob

A system for priming liquid ink writing instruments such as ink jet writers and capillary ink pens is disclosed. A source of ink is pressurized to force ink through the ink jet or other pen so that a small droplet is formed at the jet or pen outlet. As the drop forms at the jet or pen, it is eventually drawn away into an adjacent orifice, due to capillary action. An integrated priming pump serves both to pressurize the ink source to form the ink droplet and to apply a vacuum to the orifice to remove the ink drawn away by capillary action. A pressure release valve ensures that the ink jet or pen is not overpressurized during priming. In ink jet applications, the drop removal orifice is formed as a portion of the droplet charging ring.

Growing community of inventors

Vermilion, OH, United States of America

Ronald J Geil