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US3874110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Downrigger line release
Assignee: Individual
•
Filing: 1974-04-03
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Granted: 1975-04-01
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Expires: 1994-04-03
Abstract
Abstract A downrigger line release device for a trolling system to suspend a fishing lure at a desired depth in the water. A magnet body is fixedly or slidably attached to a downrigger cable supporting a weight beneath the water surface. A magnetic line release means is magnetically engaged with said magnet body and is secured to a fishing line a desired distance ahead of a lure to support the lure at the depth of the magnet body on the downrigger cable. The line release means is separable from the magnet body by the force of a fish striking the lure to permit the fisherman to play the hooked fish without interference of the downrigger cable and weight.
Inventors
- 👤 Raymond D Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:02
CPC Classifications
A; A01; A01K; A01K91/00; A01K91/06; A01K91/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
A downrigger line release device for a trolling system comprising: a. a magnet body having a flat surface and a recess in said flat surface, b. attachment means for attaching the magnet body to a cable supporting a weight, and c. a magnetic line release means including a disc portion for magnetically engaging the magnet body flat surface and having means for engaging a fishing line extending from a fishing rod, a head portion extending from the disc portion for engagement within the recess in the magnet body flat surface to prevent the disc portion from being transversely disengaged from the magnet body by a transverse force applied to the disc portion line engaging means, and a stem portion extending from the disc portion and having means for engaging a fishing line extending to a fishing lure, said magnetic line release means being separable from the magnet body flat surface when a force is applied to the stem portion line engagement means.
Claim 2
Dependent Claim
162 words
A downrigger line release device for a trolling system comprising: a. a magnet body having a flat surface and a recess in said flat surface, b. attachment means for attaching the magnet body to a cable supporting a weight, and c. a magnetic line release means including a disc portion for magnetically engaging the magnet body flat surface and having means for engaging a fishing line extending from a fishing rod, a head portion extending from the disc portion for engagement within the recess in the magnet body flat surface to prevent the disc portion from being transversely disengaged from the magnet body by a transverse force applied to the disc portion line engaging means, and a stem portion extending from the disc portion and having means for engaging a fishing line extending to a fishing lure, said magnetic line release means being separable from the magnet body flat surface when a force is applied to the stem portion line engagement means.
Claim 3
Dependent Claim
48 words
The downrigger line release device specified in claim 1 wherein the magnetic line release means stem portion has a plurality of line engagement means for engaging a fishing line extending to a fishing lure, each said line engagement means being located a different distance from the disc portion.
Claim 4
Dependent Claim
56 words
The downrigger line release device specified in claim 1 wherein the attachment means for attaching the magnet body to the weight supporting line includes a post member extending from the magnet body, an attachment plate mounted on the post member, and means for engaging the weight supporting line between the magnet body and the attachment plate.
Claim 5
Dependent Claim
57 words
The downrigger line release device specified in 1 wherein the attachment plate has a plurality of elongated grooves of different cross-sectional area and wherein at least one said groove will fixedly engage a weight supporting cable against the magnet body and at least one said groove will slidably engage a weight supporting cable against said magnet body.
Claim 6
Dependent Claim
57 words
The downrigger line release device specified in 1 wherein the attachment plate has a plurality of elongated grooves of different cross-sectional area and wherein at least one said groove will fixedly engage a weight supporting cable against the magnet body and at least one said groove will slidably engage a weight supporting cable against said magnet body.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |