Browse Prior Art Database

Volume Control for Dispensing Fluids

IP.com Disclosure Number: IPCOM000060597D
Original Publication Date: 1986-Mar-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Arndt, SF: AUTHOR [+3]

Abstract

The dispensing of fluids to objects that are sensitive or fragile often precludes any contact with the object. A device that utilizes a coil to enlarge a spherical drop formation makes such an application in a safe manner.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Volume Control for Dispensing Fluids

The dispensing of fluids to objects that are sensitive or fragile often precludes any contact with the object. A device that utilizes a coil to enlarge a spherical drop formation makes such an application in a safe manner.

As seen in the drawing, a tapered coil 1 is placed over a needle or dispensing tube 2. This tapered coil 1 has a tight tip which retains a small drop of fluid for those conditions where contact with an object's surface is not critical. For those situations where contact is undesirable, the tapered coil 1 is replaced by an interchangeable flared coil 3, as seen on the right.

The dotted lines in the drawing indicate the space occupied by the fluid, and the flared coil 3 utilizes the viscosity of the fluid to enlarge the drop size for increased ease of placement, thus avoiding contact with the surface of the object where fluid is to be placed.

Disclosed anonymously.

1