US4004835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overshot
Assignee: Individual
•
Filing: 1975-09-15
•
Granted: 1977-01-25
•
Expires: 1995-09-15
Abstract
Abstract An improved overshot for grappling a fishing neck is disclosed. A fishing neck has an undercut shoulder with a protruding enlarging thereabove. This disclosure is directed to an overshot having an upper body and a fixed inner tubular sleeve. The tubular sleeve has elongate supports which extend to a bottom ring. The bottom ring has an internal taper. The internal taper works against the right and left halves of a scissor mechanism. The tips of the scissors are constructed with undercuts to reach below and grab the nether shoulder of a fishing neck. The scissors are normally forced closed by the inner taper of the ring. When a fishing neck is engaged, the scissors are forced upwardly, moving as a unit with the scissors mounted on a pin which pin is supported by an outer sleeve which maintains alignment of the moving apparatus relative to the inner sleeve. The pin extends through slots formed in the inner sleeve. As the scissors are forced upwardly relative to the ring, they can open wider and finally reach under the fishing neck. A spring bearing on the top end of the scissors tends to force them down into closing movement against the inner taper of the bottom ring. Through this technique, a fishing neck can be engaged and disengaged by reciprocating upwardly and downwardly relative to the fishing neck.
Inventors
- 👤 William T. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:50
CPC Classifications
E; E21; E21B; E21B31/00; E21B31/12; E21B31/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
236 words
An overshot comprising: a scissor-like mechanism having a pair of facing hook means which open and close toward one another to pick up a fishing neck; a transverse pin supporting said scissor-like mechanism; an encircling ring about the lower end of said scissor-like mechanism which, on relative movement upwardly and downwardly, limits the span of opening of said hook means; a support member connected to said pin for supporting said pin; first means for relatively moving said ring controllably toward said scissor-like mechanism by moving either said ring or said support member, said first means causing said ring and said hook means to co-act to open and close, said first means further lowering said hook means to close by co-action with said ring when a fishing neck is engaged and the weight thereof acts downwardly thereon; an upper body supporting said ring and said support member; and said first means comprising a pair of protruding and relatively movable arms pivotally mounted on said pin and comprising a portion of said scissor-like mechanism which, on movement, open or close said scissor-like mechanism; a resilient means in said upper body bearing against said scissor-like mechanism to open the span of said scissor-like mechanism when it is not in constraining contact with said ring; and said arms being formed with surfaces which contact and co-act with said resilient means to increase the span of opening of said scissor-like mechanism.
Claim 2
Dependent Claim
236 words
An overshot comprising: a scissor-like mechanism having a pair of facing hook means which open and close toward one another to pick up a fishing neck; a transverse pin supporting said scissor-like mechanism; an encircling ring about the lower end of said scissor-like mechanism which, on relative movement upwardly and downwardly, limits the span of opening of said hook means; a support member connected to said pin for supporting said pin; first means for relatively moving said ring controllably toward said scissor-like mechanism by moving either said ring or said support member, said first means causing said ring and said hook means to co-act to open and close, said first means further lowering said hook means to close by co-action with said ring when a fishing neck is engaged and the weight thereof acts downwardly thereon; an upper body supporting said ring and said support member; and said first means comprising a pair of protruding and relatively movable arms pivotally mounted on said pin and comprising a portion of said scissor-like mechanism which, on movement, open or close said scissor-like mechanism; a resilient means in said upper body bearing against said scissor-like mechanism to open the span of said scissor-like mechanism when it is not in constraining contact with said ring; and said arms being formed with surfaces which contact and co-act with said resilient means to increase the span of opening of said scissor-like mechanism.
Claim 3
Dependent Claim
36 words
The apparatus of claim 1 wherein said scissor-like mechanism is forced closed by contacting said hook means with a tapered surface formed on said ring which, on axial movement, forces said mechanism toward a closed condition.
Claim 4
Dependent Claim
83 words
The apparatus of claim 1 wherein said support member is first sleeve telescoped with a second sleeve, said first sleeve being slidably mounted around and on the exterior of said second sleeve, said second sleeve being fixedly supported by said upper body and including a downwardly directed and appended connective means for said ring, said second sleeve having a pair of diametrically opposite slots parallel to one another through which said pin can slide longitudinally in moving said scissor-like mechanism relatively axially thereof.
Claim 5
Dependent Claim
35 words
The apparatus of claim 3 wherein said second sleeve is inside said first sleeve and said second sleeve is threadedly joined to said upper body and said pin and first sleeve move as a unit.
Claim 6
Dependent Claim
34 words
The apparatus of claim 1 wherein said scissor-like mechanism includes an internal shoulder on said hook means positioned to grab and engage the nether part of a fishing neck, said internal shoulder facing upwardly.
Claim 7
Dependent Claim
27 words
The apparatus of claim 5 including an external sloping surface on said hook means which is inclined inwardly and downwardly, said surface cooperatively working against said ring.
Claim 8
Dependent Claim
21 words
The apparatus of claim 1 wherein said resilient means terminates in a ring like lower appendage contacted against said scissor-like mechanism.
Claim 9
Dependent Claim
39 words
The apparatus of claim 7 wherein said scissor-like mechanism is squeezed toward a closed condition by said ring which is carried relatively vertically on an axially movably sleeve which moves axially compared to said pin and said scissor-like mechanism.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |