Patents
US 8421464 B2: Deep look electromagnetic detection and imaging transceiver (EDIT) system for detecting underground passageways
- Granted
- 2013-04-16
- Filed
- 2010-06-15 application 12815422
- Type
- Utility · 10 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An underground tunnel detection system does not employ radar. Instead, an automatic frequency control is used to keep a continuous wave (CW) transmission tuned to the resonant frequency of a resonant microwave patch antenna (RMPA). Changes in loading and the bulk dielectric constant of the mixed media in front of the RMPA will affect its resonant frequency and input impedance. A significant shift in the measured input impedance is interpreted as a possible tunnel, and the phase angle of the measured input impedance tends to indicate a slightly forward or aft position relative to the detection system rolling over it on the ground surface.
Source: PVGPATDIS, file of 2026-04-10 (ipg130416.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Stolar, Inc. 17 patents | US company or organization | Raton, NM | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Igor Bausov | Raton, NM | 10 | PVGPATDIS, file of 2026-04-10 | |
| Gerald L. Stolarczyk | Raton, NM | 10 | PVGPATDIS, file of 2026-04-10 | |
| Larry G. Stolarczyk | Raton, NM | 16 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01V | Geophysics; gravitational measurements; detecting masses or objects; tags | G01V8/005 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.