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 Title: |
US5150841:
Liquid spray dispenser
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Silvenis, Scott A.; Midland, MI
Monaghan, Paul B.; Lexington, MA
Massucco, Arthur A.; Natick, MA
Spencer, Richard H.; Winchester, MA
Gagne, William R.; Boston, MA
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| Assignee: |
DowBrands Inc., Indianapolis, IN
other patents from DOWBRANDS INC. (153400) (approx. 38)
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| Published / Filed: |
1992-09-29
/ 1991-05-23
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| Application Number: |
US1991000707256
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| IPC Code: |
Advanced:
B05B 7/00;
B05B 9/08;
Core:
more...
IPC-7:
B05B 9/04;
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| U.S. Class: |
Current:
239/332;
137/512.4;
137/859;
222/333;
222/481.5;
239/375;
239/488;
Original:
239/332;
239/488;
239/375;
222/333;
222/481.5;
137/512.4;
137/859;
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| Field of Search: |
239/329,331,332,375,474,487,488
222/333,481,481.5
137/512.4,859
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| Priority Number: |
| 1989-09-11 |
US1989000405246 |
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| Abstract: |
A battery operated hand-held dispenser which operates efficiently at lower power levels than prior art devices. The dispenser as included therein has spray, foam or stream, dispensing capabilities coupled with pump mechanisms, vent mechanisms and positive closures.
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| Primary / Asst. Examiners: |
Kashnikow, Andres; Trainor, Christopher G.
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| Maintenance Status: |
E3 Expired Check current status
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| INPADOC Legal Status: |
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| Parent Case: |
This application is a continuation of application Ser. No. 07/405,246 filed Sep. 11, 1989 now abandoned.
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| Family: |
None
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First Claim:
Show all 3 claims |
That which is claimed is:
1. A process of dispensing a spray or stream of a liquid cleaning product comprising the steps of:
- providing a hand held dispenser comprising;
- a container for a liquid,
- a dispensing nozzle assembly, said nozzle assembly including an outlet,
- a screw-shaped structure within said nozzle assembly to impart a swirl motion to a liquid passing therethrough,
- a cyclical pump for pumping said liquid from said container to said nozzle assembly, said pump being in communication with an electrical motor for driving said pump,
- a flexible tube in liquid flow communication between said pump and said nozzle assembly for conducting liquid therethrough and for absorbing energy from said liquid as it is pumped and subsequently releasing said energy to said liquid,
- cyclically pumping said liquid from said container to said nozzle assembly at a pressure differential of less than 45 pounds per square inch gauge, said liquid passing through said flexible tube during one part of said cycle imparting energy to said flexible tube and during another part of said cycle receiving energy from said flexible tube;
- said liquid contacting said screw-shaped structure within said nozzle assembly with sufficient energy to create a turbulent flow adjacent said screw-shaped structure to pass through said outlet with said swirl motion imparted thereto;
- said flow of liquid passing through said outlet having a moderated cyclical velocity due to the absorption and release of energy by said flexible tube.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 48 U.S. patent(s) that reference this one
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