Douglas Machine Inc.

Douglas Scientific, LLC

Mizpah Lc

Bruce Peterson

Richard Jerome Schoeneck

Paul Howard Wagner

Irvan Leo Pazdernik

Bradley Jon VanderTuin

Brent Conrad Urke

Ronald Matthew Gust

Daniel Leonard Floding

Adnanul Haq

Irvan Leo Pazdernick

A microplate () includes a carrier () having a plate () and an annular perimeter wall () to define a recess (). An array of holes () extends through the plate (). A tape piece (), die cut from a flexible tape () includes an array of wells () each extending through and having an opening () extending into the well (). The array of wells () has a number and locations corresponding to the array of holes (). The openings () have sizes corresponding to the holes (). An upper surface () of the tape piece () is abutted with and bonded to the bottom face () of the plate () with the openings () corresponding to the array of holes (). The slideable receipt of an annular outer periphery () of the tape piece () insures that the array of wells () are aligned to correspond to the array of holes () as die cutting of tape piece () insures that the array of wells () are at consistent positions relative to the annular outer periphery ().

Microplate and methods for making the same

A tape adaptor () includes a bottom plate () and a top plate () mounted to the bottom plate () with a space () defined between an upper side wall () of the bottom plate () and a lower face () of the top plate () for receiving a tape segment () remaining on or cut from a continuous array tape (). The tape segment () includes an array of wells () between two edges (). A slit () is formed between an end () of the top plate () and an end () of the bottom plate (). The tape segment () is slideably extended through the slit () into the space () with the edges () sliding on two ridges () on two longitudinal edges () of the bottom plate (). The bottom plate () can include at least one groove () to receive the array of wells () of the tape segment (). The tape segment () is positioned relative to the tape adaptor () by the ridges () or the groove ().

Tape adaptor

An apparatus () for singulating micro-well tape includes a tape drive () and a cutting assembly (). The micro-well tape is advanced into and passes between upper and lower tape retainers (), with the upper tape retainer () including a groove () into which a raised ridge () of a multiplicity of ridges () of the bottom tape retainer () extends, with the rows of wells moving between adjacent ridges () in a movement direction. When a bar code on the micro-well tape is detected by a sensora knife blade () mounted on a slide block () is moved vertically to cut the micro-well tape. The new leading edge of the micro-well tape pushes the cut micro-well tape which is deflected by the raised ridge ().

Methods and apparatus for singulating micro-well tape

A heat tunnel for applying heated air to articles enclosed in shrink-wrap film includes at least one air supply unit; a conveyor; and a heat shroud spaced from the conveyor. The air supply unit includes a source of heated air, a fan, a heated air plenum, air ducts, and a return air plenum. Multiple air supply units can be provided along the conveyor to create a heat tunnel of desired length.

Heat tunnel for film shrinking

A method for enclosing articles in heat-shrink film and for perforating or slitting the heat shrink film.

Method for packaging articles using pre-perforated heat shrink film

The backflow valve of the present invention includes a valve housing having a cavity therein with an inlet and an outlet to the valve cavity. A switch is in communication with the valve cavity and is moveable from an off position to an on position in response to liquid filling the valve cavity. A valve is moveable in response to the movement of the switch to the on position. The valve moves to a closed position shutting off the fluid flow through the backflow valve.

Backflow valve

A heat tunnel for applying heated air to articles enclosed in shrink-wrap film includes at least one air supply unit; a conveyor; and a heat shroud spaced from the conveyor. Tha air supply unit includes a source of heated air, a fan, a heated air plenum, air ducts, and a return air plenum. Multiple air supply units can be provided along the conveyor to create a heat tunnel of desired length.

Growing community of inventors

Alexandria, MN, United States of America

Bruce Peterson