Method for continuous liberation of active constituents into water
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 29, 1994
Issued Date -
N/A
app pub date -
Feb 18, 1992
filing date -
Sep 11, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus is provided for continuous and regular liberation of active constituents into domestic water supplies. The apparatus comprises a receptacle having a body portion which is impermeable to water and to the active constituent. The receptacle is provided with an aperture closed by a membrane which is permeable to water and to the active constituent. An operculum surrounds the membrane to secure the membrane to the receptacle. The active constituent is provided into the receptacle and is released through the membrane in a controlled manner over an extended period of time. Preferably, the membrane has a mean pore diameter greater than 0.05 microns.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully