Minnesota Mining and Manufacturing Company

Brett A Behnke

Gary A Thill

Stewart H Corn

Thomas A Speckhard

Christopher J Anton

Oyvind H Iversen

Kenneth W Olson

Jon M Nornberg

A system for substantially maintaining color density in liquid toners for electrographic printers is disclosed. The system includes means for substantially continuously supplying toner concentrate to a printer and means for substantially continuously withdrawing liquid toner from a printer into a waste flowstream. A method to achieve substantially consistent color density of liquid toner in an electrographic printing system is also disclosed.

System and method for maintaining color density in liquid toners for an

A system for substantially maintaining color density in liquid toners for electrographic printers is disclosed. The system includes means for substantially continuously supplying toner concentrate to a printer and means for substantially continuously withdrawing liquid toner from a printer into a waste flowstream. A method to achieve substantially consistent color density of liquid toner in a electrographic printing system is also disclosed.

Color control system for electrographic printer

The present invention provides a reliable, leak-resistant site for the introduction of blunt or sharp penetrators and includes an elastomeric septum through which multiple openings are formed in the axial direction. The septum is inserted within a housing having a passageway defining an axial direction. The present invention also includes a method of using the injection or sampling site along with a method of assembling the same.

IV injection and sampling site having septum with multiple openings

An IV injection site adapted to receive a blunt cannula. The injection site comprises a housing having a passageway extending inwardly from its outside end, and an elastomeric septum closely received in the passageway of the housing. The septum has a bore extending into the septum from the inside end of the septum but not through the septum, and a slit extending generally in the axial direction into the septum from the outside end of the septum to the bore. When a cannula is introduced through the slit of the septum, the elastomeric material of the septum is displaced into the bore of the septum to sealingly engage the cannula along the bore of the septum.

IV injection site and system

A method of making an injection and sampling site adapted to receive a blunt cannula. The method comprises providing an elastomeric septum, and a housing adapted to receive that septum; making a slit in the elastomeric septum; inserting the elastomeric septum into the passageway of the housing; and swaging an outer annular ledge on the housing inwardly over the septum until a septum-engaging portion of the swaging tool applies a predetermined amount of force to the septum. Before the swaging step, a pin is inserted into the passageway of the housing against the inside end of the septum to inhibit deformation of the septum during swaging.

Apparatus for making an injection or sampling site

An injection or sampling site adapted to receive a blunt cannula includes a housing having an outside end with a passageway extending inwardly from the outside end, the passageway defining an axial direction; and an elastomeric septum closely received in the passageway of the housing. There is a slit extending through the septum generally in the axial direction which is formed by a hole through the septum that is flattened against itself to seal against itself when the septum is assembled in the housing. Either the septum-receiving portion of the housing or the septum itself has a generally elliptical cross-section to preferentially compress the hole in the septum to form the slit.

Growing community of inventors

Hastings, MN, United States of America

Brett A Behnke