US3874108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for determining the depth of a trolling plug
Assignee: Individual
•
Filing: 1974-05-13
•
Granted: 1975-04-01
•
Expires: 1994-05-13
Abstract
Abstract A device for mounting on the end of a fishing rod for aiding in determining the depth that a fishing plug is running while trolling from a moving boat. The device includes a housing having a freely rotatable transverse shaft carried thereby. A radially extending arm is carried by the transverse shaft and has an eyelet adjacent one end for engaging the line upon which the fishing plug is attached. A weighted pivotal cylinder having a calibrated scale thereon is carried by the housing for indicating the angular position of the line relative to a horizontal plane. A pointer is operably connected to the radially extending arm for indicating the angular position of the line. Also mounted on the rod is a device for measuring the length of the line between the rod and the plug. By taking an angular reading of the line, as well as knowing the length of the line, reference can be made to a chart for determining the exact depth of the plug.
Inventors
- 👤 Loly V Connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:43
CPC Classifications
A; A01; A01K; A01K91/00; A01K91/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
197 words
An apparatus for mounting on the end of a fishing rod for aiding in determining the depth that a fishing plug which is attached by a line is running while trolling from a moving boat, said apparatus including: a. a housing; b. means for mounting said housing on an end of said fishing rod; c. a freely rotatable transverse shaft carried by said housing; d. a radially extending arm carried by said transverse shaft; e. an eyelet carried on one end of said radially extending arm through which said line extends for causing said radially extending arm to assume the same angle to a horizontal plane as said line; f. a weighted, pivotal member carried by said housing, a calibrated scale carried on said pivotal member that is maintained in substantially the same position regardless of the angular position of said rod, and g. a pointer movable by said radially extending arm adjacent said calibrated scale for indicating the angular position of said line relative to a horizontal plane; whereby the depth that said plug is running behind said boat can be determined from the angular reading indicated by said pointer for a known length of line.
Claim 2
Independent Claim
197 words
An apparatus for mounting on the end of a fishing rod for aiding in determining the depth that a fishing plug which is attached by a line is running while trolling from a moving boat, said apparatus including: a. a housing; b. means for mounting said housing on an end of said fishing rod; c. a freely rotatable transverse shaft carried by said housing; d. a radially extending arm carried by said transverse shaft; e. an eyelet carried on one end of said radially extending arm through which said line extends for causing said radially extending arm to assume the same angle to a horizontal plane as said line; f. a weighted, pivotal member carried by said housing, a calibrated scale carried on said pivotal member that is maintained in substantially the same position regardless of the angular position of said rod, and g. a pointer movable by said radially extending arm adjacent said calibrated scale for indicating the angular position of said line relative to a horizontal plane; whereby the depth that said plug is running behind said boat can be determined from the angular reading indicated by said pointer for a known length of line.
Claim 3
Dependent Claim
64 words
The apparatus as set forth in claim 1 wherein said weighted pivotal member includes a cylinder, a horizontal post carried by said housing for rotatably supporting said cylinder, said calibrated scale being carried on the perimeter of said cylinder, and said cylinder being weighted so as to present said calibrated scale in the same vertical plane regardless of the angular position of said rod.
Claim 4
Dependent Claim
28 words
The apparatus as set forth in claim 1 further comprising: means mounted on said rod for measuring the length of said line between said rod and said plug.
Claim 5
Independent Claim
169 words
An apparatus for being mounted on an end of a fishing rod for producing a reading that can be utilized for determining the depth that a plug attached by a line is running while trolling from a moving boat, said apparatus including: a. a housing; b. means for attaching said housing to an end of said rod; c. a calibrated scale carried on said housing representing angular readings that said line is extending downwardly from a horizontal plane; d. an arm pivotally carried by said housing; e. an eyelet carried by one end of said arm through which said line extends for causing said arm to assume the same angle to a horizontal plane as said line; f. a pointer carried by said arm adjacent said calibrated scale for indicating the angular position of said line relative to said horizontal plane; whereby the depth that said plug is running behind said boat can be determined from the angular reading indicated by said pointer for a known length of line.
Claim 6
Independent Claim
169 words
An apparatus for being mounted on an end of a fishing rod for producing a reading that can be utilized for determining the depth that a plug attached by a line is running while trolling from a moving boat, said apparatus including: a. a housing; b. means for attaching said housing to an end of said rod; c. a calibrated scale carried on said housing representing angular readings that said line is extending downwardly from a horizontal plane; d. an arm pivotally carried by said housing; e. an eyelet carried by one end of said arm through which said line extends for causing said arm to assume the same angle to a horizontal plane as said line; f. a pointer carried by said arm adjacent said calibrated scale for indicating the angular position of said line relative to said horizontal plane; whereby the depth that said plug is running behind said boat can be determined from the angular reading indicated by said pointer for a known length of line.
Claim 7
Dependent Claim
24 words
The apparatus as set forth in claim 4 further comprising spring biased clips carried on said housing for securing said apparatus to said rod.
References Cited (Backward Citations)
US2752686A
Cited
US3149419A
Cited
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 |