Allied Healthcare Products, Inc.

Bayer Healthcare LLC

Siemens Healthcare Diagnostics Gmbh

David L Boger

Kevin Donald Kroupa

Gabriel S Kohn

David A Brock

Gary H Krauth

Jack L Zuidema

Donald R Hesser

Kevin J Sheldrake

Charles Michaely

A tray assembly for use with an apparatus adapted to inspect a liquid sample, including a support tray insertable within an inspection location within the liquid sample inspection apparatus so that a light source of the apparatus illuminates a liquid sample carried on the support tray and a detector of the apparatus receives light from the liquid sample when the support tray is positioned at the inspection location, and an insert supported within the support tray and having a first surface adapted to receive a first type of liquid carrier and a second surface adapted to receive a second type of liquid carrier different from the first type of liquid carrier.

Tray assembly for optical inspection apparatus

A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure oxygen cylinder and a medical pressure regulator. The valve also may be used for other purposes. The surge prevention valve may have a housing with an inlet and an outlet. A seal unit may be used to close the main flow path from the inlet to the outlet, and a bleed passageway may be provided in the seal unit to bypass the main flow path. The valve may have an actuator for opening the bleed passageway and for moving the seal unit to open the main flow path. According to a preferred embodiment of the invention, a manual push-then-turn operation is used to open the valve. The actuator may be used to threadedly move the seal unit toward and away from the valve seat to close and open the main flow path. In addition, a valve rod may be provided for closing the bleed passageway. The valve rod may be slidably located within the seal unit and movable by pushing down on a handle or a handle button on the valve. The present invention also relates to a method of operating a high pressure valve.

Surge prevention device

A pressure regulator utilizing a gauge having rugged internal components. In one embodiment, the gauge has a low profile and is mounted to the regulator body. In another embodiment, the gauge is integral with the regulator body. In one preferred embodiment, the gauge includes a pressure pin and a bias, such as a spring. One side of the pressure pin communicates directly with the source pressure and is urged by the source pressure to move the pressure pin in a first direction, while the other side of the pressure pin is at a known pressure, such as ambient or atmospheric pressure, and is urged by the bias to move the pressure pin in a second direction opposed to the first direction. An indication of the position of the pressure pin is sensed by a user and is used to determine the source pressure or level. In one aspect, the indicator is a pointer or indicator mounted to move in response to movement of the pressure pin and mounted so that its position is visible (i.e., sensed by sight) to the user. In another aspect, the pressure pin is arranged lengthwise inside the regulator and a disc or other shaped indicator is mounted on the end of the pressure pin. A lens is provided such that the edge of the disc (or other indicator) is visible to a user. A calibrated scale indicating the amount of gas in the bottle is provided such that the position of the disc (or other indicator) with respect to the scale will indicate an amount of gas left in the bottle.

Pressure regulator with gauge

Growing community of inventors

St. Louis, MO, United States of America

David L Boger