Patent US4258010A successfully refreshed from Google Patents.
Patent US4359686A successfully refreshed from Google Patents.
US4359686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal detection apparatus with basket
Assignee: Individual
•
Filing: 1980-06-30
•
Granted: 1982-11-16
•
Expires: 2000-06-30
Abstract
Abstract A metal detection apparatus that detects metal objects includes a nonmetallic basket in which the metal objects are retrieved. The nonmetallic basket has a top portion, a side wall portion, an open bottom and a blade portion for scooping material into the basket through the open bottom. The basket is attached to one end of a handle. A metal detection coil for detecting the metal objects is pivotally mounted with respect to the basket so that the metal detection coil is normally in a first search position proximate and at least partially covering the open bottom for detecting metal objects, and pivots to a second position within the basket as the basket fills with dirt and other material. The basket preferably has apertures in the top portion so that the basket, when inverted, can sift the material for metal objects.
Inventors
- 👤 Kenneth Wherry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:19
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/15
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
122 words
Metal detection apparatus comprising: nonmetallic basket means having a top portion, a side wall portion, an open bottom, and a blade portion for scooping material into the basket means through the open bottom; handle means having a first end attached to the basket means; metal detection coil means for detecting metal objects; and pivotal mounting means for pivotally mounting the metal detection coil means with respect to the basket means and for holding the metal detection coil means in a first search position proximate and at least partially covering the open bottom for detection of metal objects, and for permitting the metal detection coil means to pivot to a second position within the basket means as the basket means fills with material.
Claim 2
Dependent Claim
122 words
Metal detection apparatus comprising: nonmetallic basket means having a top portion, a side wall portion, an open bottom, and a blade portion for scooping material into the basket means through the open bottom; handle means having a first end attached to the basket means; metal detection coil means for detecting metal objects; and pivotal mounting means for pivotally mounting the metal detection coil means with respect to the basket means and for holding the metal detection coil means in a first search position proximate and at least partially covering the open bottom for detection of metal objects, and for permitting the metal detection coil means to pivot to a second position within the basket means as the basket means fills with material.
Claim 3
Dependent Claim
15 words
The apparatus of claim 1 wherein the basket means is made of a plastic material.
Claim 4
Dependent Claim
31 words
The apparatus of claim 1 wherein the handle means is made of a plastic conduit of sufficient length to use the metal detection coil means and basket means below water level.
Claim 5
Dependent Claim
21 words
The apparatus of claim 1 wherein the pivotal mounting means is attached to the side wall portion proximate the handle means.
Claim 6
Dependent Claim
23 words
The apparatus of claim 5 wherein the blade portion extends from the side wall portion of a location farthest from the handle means.
Claim 7
Dependent Claim
27 words
The apparatus of claim 1 wherein the top portion of the basket means has a plurality of apertures to permit sifting of material within the basket means.
Claim 8
Dependent Claim
22 words
The apparatus of claim 1 further comprising metal detection circuitry for electrically powering and receiving signals from the metal detection coil means.
Claim 9
Dependent Claim
27 words
The apparatus of claim 7 wherein the metal detection circuitry is housed in a housing that is attached to a second opposite end of the handle means.
Claim 10
Dependent Claim
15 words
The apparatus of claim 8 wherein the housing is detachably attached to the handle means.
Claim 11
Dependent Claim
125 words
Metal detection apparatus comprising: nonmetallic basket means having a top portion, a side wall portion, an open bottom, with the top portion having a plurality of apertures to permit sifting of material within the basket means; handle means having a first end attached to the basket means; metal detection coil means for detecting metal objects; and pivotal mounting means for pivotally mounting the metal detection coil means with respect to the basket means and for holding the metal detection coil means in a first search position proximate and at least partially covering the open bottom for detection of metal objects, and for permitting the metal detection coil means to pivot to a second position within the basket means as the basket means fills with material.
Claim 12
Dependent Claim
125 words
Metal detection apparatus comprising: nonmetallic basket means having a top portion, a side wall portion, an open bottom, with the top portion having a plurality of apertures to permit sifting of material within the basket means; handle means having a first end attached to the basket means; metal detection coil means for detecting metal objects; and pivotal mounting means for pivotally mounting the metal detection coil means with respect to the basket means and for holding the metal detection coil means in a first search position proximate and at least partially covering the open bottom for detection of metal objects, and for permitting the metal detection coil means to pivot to a second position within the basket means as the basket means fills with material.
References Cited (Backward Citations)
US528607A
Cited
US661774A
Cited
US1050305A
Cited
US1782497A
Cited
US3757501A
Cited
US3851763A
Cited
US3930324A
Cited
US3907136A
Cited
US3976564A
Cited
US4283681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-15 | 1986-05-17 | 1986-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-15 | 1990-05-17 | 1990-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-15 | 1994-05-17 | 1994-11-16 | $7700.00 | Window Closed / Lapsed |