Patent US4866231A successfully refreshed from Google Patents.
US4866231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave chamber for heating biological matter
Assignee: Individual
•
Filing: 1988-04-01
•
Granted: 1989-09-12
•
Expires: 2008-04-01
Abstract
Abstract An applicator sheath for use with a microwave energy source for controlled heating of biological matter. The sheath has a chamber lined with a metallic absorbing material to alternate energy delivered by the microwave energy source. The energy is delivered into the chamber through a leaky waveguide.
Inventors
- 👤 David R. Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:35
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61F7/0241; H; H05; H05B; H05B6/00; H05B6/64; H05B6/80; A61F2007/0001; A61F2007/0242
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
132 words
An apparatus for heating biological material through microwave radiation, said apparatus comprising: a sheath member having an outer surface and an inner surface, said inner surface defining a chamber adapted for accepting biological matter, said sheath member having an aperture; a leaky waveguide mounted to said sheath for directing radiation through said aperture into said chamber to directly contact said biological matter; means for access to said chamber for insertion and removal of said biological matter; and a layer of silicone material impregnated with attenuation material mounted to said inner surface of said sheath member, said layer of silicone material covering said inner surface whereby energy from said radiation directed by said leaky waveguide is attenuated to form an even field of energy throughout said chamber for controllably heating said biological matter.
Claim 2
Independent Claim
132 words
An apparatus for heating biological material through microwave radiation, said apparatus comprising: a sheath member having an outer surface and an inner surface, said inner surface defining a chamber adapted for accepting biological matter, said sheath member having an aperture; a leaky waveguide mounted to said sheath for directing radiation through said aperture into said chamber to directly contact said biological matter; means for access to said chamber for insertion and removal of said biological matter; and a layer of silicone material impregnated with attenuation material mounted to said inner surface of said sheath member, said layer of silicone material covering said inner surface whereby energy from said radiation directed by said leaky waveguide is attenuated to form an even field of energy throughout said chamber for controllably heating said biological matter.
Claim 3
Dependent Claim
35 words
The apparatus of claim 1, wherein said sheath member comprises a box having a pair of sides and a pair of ends defining a top aperture, said leaky waveguide being mounted in said top aperture.
Claim 4
Dependent Claim
22 words
The apparatus of claim 2 wherein said means for access comprises a door movably mounted at one of said pair of ends.
Claim 5
Dependent Claim
33 words
The apparatus of claim 3, wherein said sheath member comprises a flexible pad having a pair of edges, said means for access comprises a means for fastening affixed to said pair of edges.
Claim 6
Dependent Claim
29 words
The apparatus of claim 1, wherein said sheath member comprises a pad member having the shape of a human hand, and defining a chamber within for accepting said hand.
Claim 7
Dependent Claim
29 words
The apparatus of claim 1, wherein said sheath member comprises a pad member having the shape of a human foot, and defining a chamber within for accepting said foot.
References Cited (Backward Citations)
US1973911A
Cited
US2704802A
Cited
US3263052A
Cited
US4197860A
Cited
US4332260A
Cited
US4509535A
Cited
US4660572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |