Data Packaging Corporation

Other

David E Butz

Alan L Stenfors

Roy Kaplow

Pasquale L Pepicelli

Joseph Leighton

Robert W Jones

A disc pack assembly having a top cover and a bottom cover which together define a housing that contains the magnetic disc and hub assembly. An opening in the bottom cover is closed by a removable cover. The opening in the bottom cover provides access for the drive spindle which engages and rotatably supports the disc and hub assembly when the pack without the removable cover is mounted on a computer. The magnetic memory disc and hub assembly is afforded limited axial and radial movement within the housing when the removable cover is removed, but the removable cover includes a retaining ring which both supports and fixes the disc and hub assembly in the housing by engaging the hub through the opening when the removable cover is in place on the pack.

Disc pack assembly

This invention relates in general to a disc pack cartridge and more particularly pertains to a handle for a single disc cartridge which incorporates an improved mechanism that enables unlatching of the removable bottom cover of the cartridge. An improved manner of mounting the handle on the top cover is incorporated in the assembly to facilitate assembly, simplify the handle structure and make the handle mount more secure.

Disc pack with snap on handle

An apparatus for growing tissue cultures in vitro in which the process of growth occurring in nature is more nearly simulated. The apparatus permits a concentration gradient of nutrients to develop through a permeable membrane to which a sample of tissue is attached. The apparatus is such that the growing culture receives substantially all its nutrients and oxygen necessary for growth through the membrane. The permeable membrane is attached to one side of a support and covers one end of a well in the support. A tissue sample is placed within the well and attached to the inside surface of the permeable membrane. A specially designed closed container filled with solution encases the membrane, support, and tissue sample. The container and contents are submerged in a nutrient bath. A concentration gradient develops in the tissue culture as nutrients and oxygen permeate through the membrane to the tissue sample. At least one culture container, and preferably two culture containers, are integral with a plastic plate which has dimensions comparable to a standard microscope slide. The state of growth occurring within the culture containers may be viewed periodically with an inverted microscope without opening the container. The invention has particular application in the field of cancer research in the study of the development of cancerous tissue and has potential for pathological diagnosis of the malignant character of tissue cells.

System for growing tissue cultures

A radioimmunoassay plate composed of a tray and a cover. The tray has a plurality of wells having downwardly tapered side walls and coplanar bottom walls. Each bottom wall has a flat central portion and rounded peripheral portion, the peripheral portion merging into the side wall.

Radioimmunoassay plate

A disk pack top cover assembly wherein the top cover has a well provided with a hole in the center of the bottom wall. A handle is rotatably mounted in the well and carries a tool body assembly that extends through the hole. The tool body includes a collar molded as an integral part of the handle and a tool body stamping that forms a cap over the lower end of the collar.

Disk pack handle mechanism

This invention relates in general to a disc pack cartridge and more particularly pertains to a handle for a single disc cartridge having an improved mechanism that enables unlatching of the removable bottom cover of the cartridge. The handle can be raised from a horizontal to a vertical position on the top cover either to carry the latched cartridge about conveniently or to unlatch the bottom cover. A special guide is incorporated into the handle to control the path of movement of the handle when it is moved between its horizontal and vertical positions.

Disc pack handle mechanism

A bottom cover for a disk pack having a magnet assembly secured to the cover bottom wall by an inverted channel. The magnet assembly includes pole pieces made of parallel plates that register with slots in the channel and permanent magnets disposed between the plates and within the channel.

Growing community of inventors

Littleton, MA, United States of America

David E Butz