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Class Information
Number: 222/55
Name: Dispensing > Automatic control > Constant weight, volume or pressure control by output
Description: Dispensers having means which responds to the volume, weight, or pressure of material already discharged without restraint on such material and correspondingly affects the discharge means employed, usually to secure uniformity of discharge regardless of varying conditions of the material as to specific gravity, etc., thus giving a constant feed from the source regardless of rate of use.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7628293 |
Grease supply apparatus |
Dec. 8, 2009 |
| 7610167 |
Controlled material processing device, controller and method |
Oct. 27, 2009 |
| 7605333 |
Vacuum powered addition system |
Oct. 20, 2009 |
| 7581659 |
Dosing device |
Sep. 1, 2009 |
| 7578416 |
Water purification apparatus |
Aug. 25, 2009 |
| 7553452 |
Procedure for channel adjustment of a multi-channel metering apparatus |
Jun. 30, 2009 |
| 7530729 |
Blenders |
May. 12, 2009 |
| 7494028 |
Fluid dispensing system suitable for dispensing liquid flavorings |
Feb. 24, 2009 |
| 7481337 |
Apparatus for fluid storage and delivery at a substantially constant pressure |
Jan. 27, 2009 |
| 7475793 |
Bulk bag unloader with flow regulation |
Jan. 13, 2009 |
| 7477997 |
Method for ascertaining interferants in small liquid samples in an automated clinical analyzer |
Jan. 13, 2009 |
| 7431143 |
Controlling feeding of solid matter |
Oct. 7, 2008 |
| 7347344 |
Apparatus for dispensing a plurality of fluids and container for use in the same |
Mar. 25, 2008 |
| 7318537 |
Method and apparatus for controlling the speed and/or direction of movement of a screw discharger |
Jan. 15, 2008 |
| 7301110 |
Arrangement for conveying controlled portions of a product material to a weighing system |
Nov. 27, 2007 |
| 7222750 |
Transfer and dosing device of pulverulent or granular material contained in a hopper |
May. 29, 2007 |
| 7189434 |
Photoresist supply apparatus and method of controlling the operation thereof |
Mar. 13, 2007 |
| 7066352 |
Material supply system |
Jun. 27, 2006 |
| 7014715 |
Photoresist supply apparatus and method of controlling the operation thereof |
Mar. 21, 2006 |
| 6983860 |
Spreading head, particularly for thermoplastic material |
Jan. 10, 2006 |
| 6942736 |
Automatically controlled flow applicator |
Sep. 13, 2005 |
| 6892900 |
Valve |
May. 17, 2005 |
| 6881267 |
Photoresist supply apparatus for preventing photoresist loss through drain line |
Apr. 19, 2005 |
| 6851575 |
Pressurized package comprising a pressure control device |
Feb. 8, 2005 |
| 6817486 |
Photoresist supply apparatus capable of controlling flow length of photoresist and method of supplying photoresist using the same |
Nov. 16, 2004 |
| 6814810 |
Apparatus for calibrating a dispensing system |
Nov. 9, 2004 |
| 6814110 |
Method of and apparatus for improved pressurized fluid dispensing for the guaranteed filling of cavities and/or the generating of guaranteed uniform gasket beads and the like |
Nov. 9, 2004 |
| 6799698 |
Liquid material supply system |
Oct. 5, 2004 |
| 6769462 |
Dispensing apparatus |
Aug. 3, 2004 |
| 6675988 |
Apparatus for dispensing liquids and solids |
Jan. 13, 2004 |
| 6674022 |
Apparatus and method for transferring and weighing powder materials using pipette transfer devices |
Jan. 6, 2004 |
| 6669052 |
Chemical dispensing system |
Dec. 30, 2003 |
| 6640158 |
Filling apparatus with feed diverter |
Oct. 28, 2003 |
| 6589791 |
State-variable control system |
Jul. 8, 2003 |
| 6579563 |
Fluid dispenser with fluid weight monitor |
Jun. 17, 2003 |
| 6545231 |
Chain conveyor |
Apr. 8, 2003 |
| 6494343 |
Fluid storage and dispensing system featuring ex-situ strain gauge pressure monitoring assembly |
Dec. 17, 2002 |
| 6488181 |
Device for metering powder |
Dec. 3, 2002 |
| 6474372 |
Weighing apparatus |
Nov. 5, 2002 |
| 6460730 |
Method and device for dispensing a fluid from a pressure tank |
Oct. 8, 2002 |
| 6443328 |
Electronic lube gun with low battery protection |
Sep. 3, 2002 |
| 6431410 |
Rice dispensing system |
Aug. 13, 2002 |
| 6417464 |
Extended range feeders |
Jul. 9, 2002 |
| 6399902 |
Inline flux measurement system |
Jun. 4, 2002 |
| 6380495 |
Method for controlling an amount of material delivered during a material transfer |
Apr. 30, 2002 |
| 6371331 |
Electronic apparatus for dispensing precise small quantities of fluid |
Apr. 16, 2002 |
| 6329013 |
Method for dispensing a viscous solution |
Dec. 11, 2001 |
| 6293428 |
Dropping control mechanism for soap feeding device |
Sep. 25, 2001 |
| 6257447 |
Precision powder feeder |
Jul. 10, 2001 |
| 6253959 |
Measuring and dispensing system for solid dry flowable materials |
Jul. 3, 2001 |
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