Fluid sprinkling – spraying – and diffusing – Slow diffusers – Liquid supply in absorbent or porous media only
Patent
1996-07-26
1998-06-16
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Slow diffusers
Liquid supply in absorbent or porous media only
A61L 904
Patent
active
057657513
ABSTRACT:
A "button cell" battery-type volatile substance delivery device includes a thin-walled metallic canister (11) with apertures (14) at the closed end thereof which allows volatile fluid to escape therefrom as a vapor. A permeable membrane (13) such as a microporous membrane is positioned in one end of the canister and is sealed with a cap (16) and grommet (12) assembly. Volatile fluid is placed in the cap and grommet assembly prior to placement of the canister for crimping of the device to form a hermetic seal between the canister and the cap as well as a hermetic seal between the canister and permeable membrane along the perimeter of the closed end of the canister. These two seals allow volatile fluid contained in the cell to diffuse only through the permeable membrane at a controlled rate. The rate of evaporation of the fluid depends on the characteristics of the membrane and the number of apertures. Tape may be placed over the apertures to prevent volatilization of fluid until it is ready to be used. The volatile substance delivery devices are rugged and may be mass-manufactured at low cost. Volatile substances which can be dispensed include fragrances, personal perfumes, volatile insecticides, pest repellent fluids, and volatile medicament fluid compounds.
REFERENCES:
patent: 2564860 (1951-08-01), Ryberg
patent: 2615754 (1952-10-01), Lindenberg
patent: 2740662 (1956-04-01), Scott
patent: 3685734 (1972-08-01), Paciorek et al.
patent: 4081501 (1978-03-01), Muther
patent: 4145001 (1979-03-01), Weyenberg et al.
patent: 4157787 (1979-06-01), Schwartz
patent: 4254910 (1981-03-01), Martin
patent: 4292383 (1981-09-01), Di Palma et al.
patent: 4753389 (1988-06-01), Davis
patent: 4849606 (1989-07-01), Martens, III et al.
patent: 5007529 (1991-04-01), Spector
patent: 5230867 (1993-07-01), Kunze et al.
patent: 5242111 (1993-09-01), Nakoneczny et al.
patent: 5266543 (1993-11-01), Matsumoto et al.
patent: 5291742 (1994-03-01), Kawatani et al.
patent: 5361522 (1994-11-01), Green
patent: 5372303 (1994-12-01), Paul
patent: 5373581 (1994-12-01), Smith
patent: 5399404 (1995-03-01), Laughlin et al.
patent: 5431859 (1995-07-01), Tobin
patent: 5437410 (1995-08-01), Babasade
patent: 5439100 (1995-08-01), Gordon et al.
patent: 5447693 (1995-09-01), Ohta et al.
patent: 5468447 (1995-11-01), Bermas
patent: 5478505 (1995-12-01), McElfresh et al.
patent: 5487869 (1996-01-01), Retallick
Eury et al., Abstract, "Blocked polymeric particles having internal pore networks for delivering active substances to selected environments", U.S. Patent No. 5,316,774, May 31, 1994, 2 pages.
Williford et al., Abstract, "Methods and compositions for flavoring orally-delivered products", U.S. Patent No. 5,458,890, Oct. 17, 1995, 2 pages.
Ceramatec, Inc.
Ganey Steven J.
Kashnikow Andres
LandOfFree
Controlled release of volatile substances does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controlled release of volatile substances, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled release of volatile substances will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1716539