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Class Information
Number: 222/336
Name: Dispensing > With discharge assistant (e.g., impeller, pump, conveyer, movable trap chamber, etc.) > With biasing means for discharge assistant and/or its casing
Description: Dispensers in which there are biasing means of spring or other form for moving to a desired position, either (1) the discharge assistant or (2) its enclosing casing.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7618360 |
Base insert device for paper bags |
Nov. 17, 2009 |
| 6969015 |
Particulate sauce dispensing nozzle |
Nov. 29, 2005 |
| 6948639 |
Device for packaging and dispensing a product, notably in the form of a sample |
Sep. 27, 2005 |
| 6932246 |
Assembly for packaging and dispensing a product, especially in the form of a sample |
Aug. 23, 2005 |
| 6811061 |
Device for storing, measuring and dispensing granular and powder materials |
Nov. 2, 2004 |
| 6789707 |
Storage and dispensing of carbonated beverages |
Sep. 14, 2004 |
| 6749091 |
Universal reagent dispenser |
Jun. 15, 2004 |
| 6685673 |
Continuous liquid infusion device |
Feb. 3, 2004 |
| 6619513 |
Pump for fitting to a receptacle, the pump including an elastically deformable membrane outside the pump chamber |
Sep. 16, 2003 |
| 6585136 |
Paste dispenser and method of use |
Jul. 1, 2003 |
| 6520385 |
Pump including a spring-forming diaphragm, and a receptacle fitted therewith |
Feb. 18, 2003 |
| 6471098 |
Structure of adhesive dispenser |
Oct. 29, 2002 |
| 6450371 |
Device for measuring, dispensing and storing of granular and powder materials |
Sep. 17, 2002 |
| 6419122 |
Magnetically operated apparatus for dispensing a chemical |
Jul. 16, 2002 |
| 6390338 |
Pump for fitting to a receptacle, the pump including an elastically deformable membrane outside the pump chamber |
May. 21, 2002 |
| 6279784 |
Trigger activated pump sprayer having a combination dual action spring and fluid chamber |
Aug. 28, 2001 |
| 6250505 |
Fluid dispensers |
Jun. 26, 2001 |
| 6207052 |
Method and apparatus for removing air locks within manually operated micro-filtration devices |
Mar. 27, 2001 |
| RE37047 |
Cartridge for applying medicament to an eye from a dispenser |
Feb. 6, 2001 |
| 6109479 |
Dispensing device |
Aug. 29, 2000 |
| 6105830 |
Pump mechanism |
Aug. 22, 2000 |
| 6019899 |
Method and apparatus for removing air locks within manually operated micro-filtration devices |
Feb. 1, 2000 |
| 5924603 |
Pump made of plastic for dispensing products from containers |
Jul. 20, 1999 |
| 5881928 |
Dispensing gun |
Mar. 16, 1999 |
| 5881927 |
Pump mechanism |
Mar. 16, 1999 |
| 5685461 |
Apparatus for dispensing a uniform volume of granular material |
Nov. 11, 1997 |
| 5665070 |
Infusion pump with magnetic bag compression |
Sep. 9, 1997 |
| 5645197 |
Adjustable volume dosing dispenser for fish food |
Jul. 8, 1997 |
| 5589145 |
Waste treatment material dispensing canister |
Dec. 31, 1996 |
| 5480066 |
Device for dispensing material from a tube |
Jan. 2, 1996 |
| 5462201 |
Automatic liquid dispensing device |
Oct. 31, 1995 |
| 5447257 |
Valve trumpet spring and seal |
Sep. 5, 1995 |
| 5447255 |
Toothpaste dispensing apparatus |
Sep. 5, 1995 |
| 5421491 |
Measuring and dispensing device |
Jun. 6, 1995 |
| 5401259 |
Cartridge for applying medicament to an eye |
Mar. 28, 1995 |
| 5386929 |
Portion dispensing caps |
Feb. 7, 1995 |
| 5336320 |
Fast response film coater |
Aug. 9, 1994 |
| 5279585 |
Medication delivery pen having improved dose delivery features |
Jan. 18, 1994 |
| 5279586 |
Reusable medication delivery pen |
Jan. 18, 1994 |
| 5267986 |
Cartridge for applying medicament to an eye from a dispenser |
Dec. 7, 1993 |
| 5240152 |
Dispenser with an energy storage member |
Aug. 31, 1993 |
| 5222637 |
Manually operated pump device for dispensing fluids |
Jun. 29, 1993 |
| 5215230 |
Trigger mechanism for glue gun |
Jun. 1, 1993 |
| 5188455 |
Apparatus for remote mixing of fluids |
Feb. 23, 1993 |
| 5100025 |
Pump dispensing apparatus |
Mar. 31, 1992 |
| 5037008 |
Manual seed metering apparatus |
Aug. 6, 1991 |
| 5000347 |
Method for dispensing a protective fluid |
Mar. 19, 1991 |
| 4991742 |
Automatic drip bottle set |
Feb. 12, 1991 |
| 4957220 |
Vending machine last drink sensor and dispensing apparatus |
Sep. 18, 1990 |
| 4915265 |
Apparatus for feeding bulk material |
Apr. 10, 1990 |
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