Patent US4024666A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4024666A Expired / Lapsed US ⏱️ 0.0 years remaining

Variable stiffness fishing rod

Assignee: Individual
•
Filing: 1976-02-17
•
Granted: 1977-05-24
•
Expires: 1996-02-17
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A fishing rod which can be selectively varied in strength or tension by the fisherman. In the preferred embodiment the apparatus comprises an elongated, tubular rod portion, a plurality of spaced apart, internally disposed force transmitters, a plurality of cooperating, spaced apart force distributing receivers, and a cable tensioning means coaxially disposed interiorly of the rod portion for selectively moving the force transmitters into compressive engagement with the receivers. In one form the rod includes a twistable handle portion which is adapted to selectively tension the cable means thereby stiffening the rod as desired by the fisherman.

Inventors

  • 👤 Stephen Dee Carver

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 02:30
CPC Classifications
A; A01; A01K; A01K87/00; A63; A63B; A63B60/00; A63B60/0081; A63B60/06; A63B60/08; A63B60/10; A63B60/22; A63B60/24

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 144 words
A variable stiffness fishing rod comprising: an elongate, tubular rod portion of predetermined length; a handle portion communicating with said tubular rod portion; a plurality of stationary, force receivers disposed interiorly of said rod portion at spaced apart locations therein for selectively distributing force along the length of said rod portion to tension same; a plurality of spaced apart, moveable force transmitters disposed interiorly of said rod portion, each one of said force transmitters positioned adjacent a corresponding one of said receivers; and tension means disposed interiorly of said rod portion for moving said transmitters into abutment with said receivers thereby effecting stiffening of said fishing rod, said tension means comprising elongated cable means disposed concentrically within said rod portion and passing through said receivers and said transmitters, said cable means being attached to each one of said transmitters to prevent axial displacement therebetween.
Claim 2
Dependent Claim 144 words
A variable stiffness fishing rod comprising: an elongate, tubular rod portion of predetermined length; a handle portion communicating with said tubular rod portion; a plurality of stationary, force receivers disposed interiorly of said rod portion at spaced apart locations therein for selectively distributing force along the length of said rod portion to tension same; a plurality of spaced apart, moveable force transmitters disposed interiorly of said rod portion, each one of said force transmitters positioned adjacent a corresponding one of said receivers; and tension means disposed interiorly of said rod portion for moving said transmitters into abutment with said receivers thereby effecting stiffening of said fishing rod, said tension means comprising elongated cable means disposed concentrically within said rod portion and passing through said receivers and said transmitters, said cable means being attached to each one of said transmitters to prevent axial displacement therebetween.
Claim 3
Dependent Claim 45 words
The combination as defined in claim 1 wherein said fishing rod comprises means for controllably tensioning said cable means thereby forcing said transmitters into abutment with said receivers to stiffen said rod, said last mentioned means operable in response to manipulation of said handle portion.
Claim 4
Dependent Claim 51 words
The combination as defined in claim 2 wherein said controllable cable tensioning means comprises: a threaded sleeve member attached to said cable means; and a rotatable handle portion adapted to selectively matingly engage said sleeve member, thereby selectively varying tension by moving said sleeve member axially with respect to said rod.
Claim 5
Dependent Claim 31 words
The combination as defined in claim 3 wherein said rod portion includes a forward tip portion and said cable means is attached interiorly of said rod to said forward tip portion.
Claim 6
Dependent Claim 72 words
The combination as defined in claim 2 wherein said fishing rod comprises: a first tubular elongated portion; a second tubular elongated portion adapted to receive said first elongated portion thereby forming said fishing rod; said cable means comprising a first segment disposed interiorly of said first rod portion and a second segment disposed interiorly of said second rod portion and means for connecting said first cable section to said second cable section.
Claim 7
Dependent Claim 26 words
The combination as defined in claim 1 wherein said force transmitters comprise spheroids and said receivers comprise concave surfaces adapted to be contacted by said transmitters.
Claim 8
Dependent Claim 28 words
The combination as defined in claim 1 wherein said transmitters comprise tapered cone portions and said receivers comprise tapered recessed portions adapted to receive said transmitter cone portions.
Claim 9
Dependent Claim 20 words
The combination as defined in claim 1 wherein said receivers comprise rigid shoulder portions integrally formed interiorly of said rod.

References Cited (Backward Citations)

US279988A Cited
US2351734A Cited
US2478131A Cited
US2816389A Cited
US2902789A Cited
US3570164A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-05-23 1980-11-22 1981-05-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-05-23 1984-11-22 1985-05-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-05-23 1988-11-22 1989-05-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag