US3646492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic-pickup-device
Assignee: Individual
•
Filing: 1970-07-16
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Granted: 1972-02-29
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Expires: 1990-07-16
Abstract
Abstract A hand-operated device for collecting and picking up metal objects, as pins, nails, clips or the like. The device has a crosshead secured to the lower end of an elongated handle. A Ushaped channel of magnetic material is secured to the bottom of the crosshead. A bar having magnetic properties is located within the channel establishing a flux force field in the channel operative to pick up and hold magnetic metal objects on the channel.
Inventors
- 👤 Lillian D Westermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:39
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/02; H01F7/0231; H01F7/0252; H01F7/0257; A; A47; A47L; A47L13/00; A47L13/10; A47L13/40; A47L13/41; B; B03; B03C; B03C1/00; B03C1/02; B03C1/30; E; E01; E01H; E01H1/00; E01H1/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
A device for collecting magnetic metal objects comprising: a transverse member of nonmagnetic material, an elongated handle secured to the center section of the transverse member to form therewith a generally T-shaped assembly, a downwardly open transverse channel member of magnetizable metal secured to the bottom portion of the transverse member, said channel member having a length substantially the same as the length of the transverse member, said channel member having spaced substantially parallel sidewalls, and elongated bar means having magnetic characteristics located between the sidewalls, said bar means extending substantially the length of the channel member and magnetically retained on the channel member, whereby the channel member is magnetized so that when the channel member is positioned adjacent the metal objects, magnetic force collects the metal objects on the channel member.
Claim 2
Independent Claim
132 words
A device for collecting magnetic metal objects comprising: a transverse member of nonmagnetic material, an elongated handle secured to the center section of the transverse member to form therewith a generally T-shaped assembly, a downwardly open transverse channel member of magnetizable metal secured to the bottom portion of the transverse member, said channel member having a length substantially the same as the length of the transverse member, said channel member having spaced substantially parallel sidewalls, and elongated bar means having magnetic characteristics located between the sidewalls, said bar means extending substantially the length of the channel member and magnetically retained on the channel member, whereby the channel member is magnetized so that when the channel member is positioned adjacent the metal objects, magnetic force collects the metal objects on the channel member.
Claim 3
Dependent Claim
34 words
The device of claim 1 wherein: the sidewalls are longer than the thickness of the elongated bar means, whereby the sidewalls extend downwardly from the plane of the bottom surface of the bar means.
Claim 4
Dependent Claim
24 words
The device of claim 2 wherein: the elongated bar means is a generally flat bar of plastic material having a filler with magnetic properties.
Claim 5
Dependent Claim
19 words
The device of claim 1 wherein: the handle is at least three times as long as the transverse member.
Claim 6
Dependent Claim
26 words
The device of claim 1 including: wheel means mounteD on opposite end portions of the transverse member to position the channel member above a supporting surface.
Claim 7
Dependent Claim
21 words
The device of claim 5 including: mounts rotatably carrying the wheel means and means attaching the mounts to the transverse member.
Claim 8
Dependent Claim
42 words
The device of claim 5 including: mounts rotatably carrying the wheel means, said mounts having portions located between the sidewalls of the channel member, and fastening means securing the mounts to the channel member and the channel member to the transverse member.
Claim 9
Dependent Claim
17 words
The device of claim 7 wherein: the fastening means comprise a single threaded member for each mount.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |