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GB2024919A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Toggle mechanism connector
Assignee: NL Industries Inc
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Filing: 1979-06-18
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Granted: —
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Expires: 1999-06-18
Abstract
Abstract An over-the-centre toggle mechanism for moving locking dogs 32 for connecting and disconnecting two underwater members 10, 14 which may be a well head top and a connector therefor. The first member 10 includes locking notches 12 and the second member slidably carries locking dogs 32 for transverse movement for engagement and disengagement with the locking notches. A toggle linkage includes a first pivot connection 36, 38 connected to the dogs and a second pivot connection 40, 42 longitudinally actuated by pistons 21 whereby longitudinal movement of the second pivot connections transversely moves the locking dogs. A resilient load spring 46 acts against the second pivot connections and towards the first pivot connections for locking the second pivot connections in a past dead-centre position relative to the first pivot connections. The second member includes a tubular body 16 having an annular cavity 18 with a longitudinally reciprocal carriage 30 mounted in the cavity and actuated by the pistons. The second pivot connections and the spring are transversely movable on the carriage and carried by the carriage. The cavity includes seals for sealingly enclosing the cavity and includes a flexible member 52 exposed on one side to the interior of the cavity and on the second side to the exterior of the cavity for compensating for a difference in fluid pressure between the cavity and the outside of the body. <IMAGE>
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-11-02 10:26
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/035; E21B33/038
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
104 words
A connector for connecting or disconnecting two members of which the first member includes a locking notch, the connector comprising a double acting longitudinally moving means for moving locking dogs into and out of the locking notch wherein the dogs are slidably carried by the second member for transverse movement toward and away from the second member for engagement and disengagement with the locking notch, and a toggle linkage having a first pivot connection connected to the dogs and a second pivot connection longitudinally actuated by the said moving means whereby the longitudinal movement of the second pivot connection transversely moves the locking dogs.
Claim 2
Dependent Claim
104 words
A connector for connecting or disconnecting two members of which the first member includes a locking notch, the connector comprising a double acting longitudinally moving means for moving locking dogs into and out of the locking notch wherein the dogs are slidably carried by the second member for transverse movement toward and away from the second member for engagement and disengagement with the locking notch, and a toggle linkage having a first pivot connection connected to the dogs and a second pivot connection longitudinally actuated by the said moving means whereby the longitudinal movement of the second pivot connection transversely moves the locking dogs.
Claim 3
Dependent Claim
41 words
A connector as claimed in claim 1 including a resilient load spring acting against the second pivot connection and towards the first pivot connection for locking the second pivot connection in a past dead-centre position relative to the first pivot connection.
Claim 4
Dependent Claim
158 words
A connector for locking a second member to a first member which includes a locking notch comprising, an annular body having an annular cavity included in the second member, a plurality of locking dogs slidably carried by the body for transverse movement toward and away from the second member for engagement and disengagement with the locking notch, the dogs extending into the said cavity, a plurality of toggle linkages in the cavity, each of which includes first and second pivot connections, the first pivot connection being connected to one of the dogs, a longitudinally reciprocative carriage mounted in the cavity, the carriage carrying the second pivot connections, an annular spring carried by the carriage and acting against the second pivot connections and towards the first pivot connections for locking the second pivot connections in a past dead-centre position relative to the first pivot connections, and a double acting longitudinally movable means connected to and longitudinally moving the carriage.
Claim 5
Dependent Claim
158 words
A connector for locking a second member to a first member which includes a locking notch comprising, an annular body having an annular cavity included in the second member, a plurality of locking dogs slidably carried by the body for transverse movement toward and away from the second member for engagement and disengagement with the locking notch, the dogs extending into the said cavity, a plurality of toggle linkages in the cavity, each of which includes first and second pivot connections, the first pivot connection being connected to one of the dogs, a longitudinally reciprocative carriage mounted in the cavity, the carriage carrying the second pivot connections, an annular spring carried by the carriage and acting against the second pivot connections and towards the first pivot connections for locking the second pivot connections in a past dead-centre position relative to the first pivot connections, and a double acting longitudinally movable means connected to and longitudinally moving the carriage.
Claim 6
Dependent Claim
194 words
A hydraulically actuated connector for locking a second member to a first member which includes a locking notch comprising, a tubular body for telescoping over the first member and an annular sealed cavity included in the second member, a plurality of locking dogs slidably carried by the body for transverse movement toward and away from the second member for engagement and disengagement with the second locking notch, the dogs extending into the said cavity, a plurality of toggle linkages in the cavity, each of which includes first and second pivot connections, the first pivot connections being connected inside of the cavity to one of the dogs, an annular longitudinally reciprocative carriage mounted in the cavity and bearing on its inside against the inside of the body, the carriage carrying the second pivot connections, an annular spring carried by the carriage and acting against the second pivot connections and towards the first pivot connection for locking the second pivot connections in a past dead-centre position relative to the first pivot connections, and a double acting longitudinally movable piston carried by the body and extending into the cayity and connected to and longitudinally moving the carriage.
Claim 7
Dependent Claim
194 words
A hydraulically actuated connector for locking a second member to a first member which includes a locking notch comprising, a tubular body for telescoping over the first member and an annular sealed cavity included in the second member, a plurality of locking dogs slidably carried by the body for transverse movement toward and away from the second member for engagement and disengagement with the second locking notch, the dogs extending into the said cavity, a plurality of toggle linkages in the cavity, each of which includes first and second pivot connections, the first pivot connections being connected inside of the cavity to one of the dogs, an annular longitudinally reciprocative carriage mounted in the cavity and bearing on its inside against the inside of the body, the carriage carrying the second pivot connections, an annular spring carried by the carriage and acting against the second pivot connections and towards the first pivot connection for locking the second pivot connections in a past dead-centre position relative to the first pivot connections, and a double acting longitudinally movable piston carried by the body and extending into the cayity and connected to and longitudinally moving the carriage.
Claim 8
Dependent Claim
61 words
A connector as claimed in claim 3 or claim 4 including seals for sealing and enclosing the said cavity, and a flexible member exposed on one side to the interior of the cavity and on the second side to the exterior of the cavity for compensating for a difference in fluid pressure between the cavity and the outside of the body.
Claim 9
Dependent Claim
26 words
A connector as claimed in claim 3, claim 4 or claim 5 wherein the second pivot connections and the spring are transversely movable on the carriage.
Claim 10
Dependent Claim
88 words
A connector for connecting and disconnecting two members of which the first member includes a locking notch, the connector comprising in the second member an annular body having an annular cavity, seal means enclosing the cavity, the locking dogs, means for moving the locking dogs into and out of the locking notch, the moving means extending into said cavity, oil filling the cavity, and a flexible member exposed on one side to the interior of the cavity and on the second side to the exterior of the cavity.
Claim 11
Dependent Claim
88 words
A connector for connecting and disconnecting two members of which the first member includes a locking notch, the connector comprising in the second member an annular body having an annular cavity, seal means enclosing the cavity, the locking dogs, means for moving the locking dogs into and out of the locking notch, the moving means extending into said cavity, oil filling the cavity, and a flexible member exposed on one side to the interior of the cavity and on the second side to the exterior of the cavity.
Claim 12
Dependent Claim
27 words
A connector for connecting and disconnecting two members of which the first member includes a locking notch substantially as hereinbefore described with reference to the accompanying drawings.
Claim 13
Dependent Claim
27 words
A connector for connecting and disconnecting two members of which the first member includes a locking notch substantially as hereinbefore described with reference to the accompanying drawings.
References Cited (Backward Citations)
No citation records indexed.
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