Patent US4300852A successfully refreshed from Google Patents.
US4300852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater structural joints
Assignee: UK Secretary of State for Energy
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Filing: 1979-05-22
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Granted: 1981-11-17
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Expires: 1999-05-22
Abstract
Abstract The invention concerns structural joints for the underwater repair of tubular members and comprises first and second connection members which extend towards each other in over-lapping/interleaving relationship, the connection member being securable to the tubular members by resin or friction clamp means and the over-lapping/interleaving fingerplates being securable together by suitable resin or alternatively by resin and mechanical fastening means such as friction bolting.
Inventors
- 👤 Peter J. Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:27
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/0004; F; F16; F16B; F16B2/00; F16B2/02; F16B2/06; F16B2/065; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B7/0486; F16B2200/00; F16B2200/67; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7105
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
A joint for joining first and second tubular members in a noncoaxial relation, comprising first and second connection members securable respectively to the first and second tubular members to define a central common plane through the joint and the first and second tubular members, each connection member including two spaced apart arrangements of fingerplates extending laterally of its respective tubular member, the arrangements being situated on opposite sides of and substantially parallel with the central common plane, each arrangement of one of the connection members being adapted to co-operate with a respective arrangement of the other connection member to form a respective connection between the said tubular members.
Claim 2
Dependent Claim
108 words
A joint for joining first and second tubular members in a noncoaxial relation, comprising first and second connection members securable respectively to the first and second tubular members to define a central common plane through the joint and the first and second tubular members, each connection member including two spaced apart arrangements of fingerplates extending laterally of its respective tubular member, the arrangements being situated on opposite sides of and substantially parallel with the central common plane, each arrangement of one of the connection members being adapted to co-operate with a respective arrangement of the other connection member to form a respective connection between the said tubular members.
Claim 3
Dependent Claim
40 words
A joint as claimed in claim 1 in which the connection member is in the form of a friction clamp, having two halves clamped around the tubular member by tension bars to induce a circumferential stress in the tubular member.
Claim 4
Dependent Claim
36 words
A joint as claimed in claim 1 in which the connection member is in the form of a sleeve secured to the tubular member by means of resin introduced between the sleeve and the tubular member.
Claim 5
Dependent Claim
33 words
A joint as claimed in claim 1 in which spacer means are provided on the inside surface of the sleeve to ensure and maintain a minimum thickness of resin in the assembled joint.
Claim 6
Dependent Claim
28 words
A joint as claimed in claim 1 in which the over-lapping/interleaving finger plates of the joint are secured by resin and mechanical fastening means such as friction bolting.
Claim 7
Dependent Claim
17 words
A joint as claimed in claim 1, wherein each said connection comprises at least three interleaved fingerplates.
Claim 8
Dependent Claim
22 words
A joint as claimed in claim 1 in which the over-lapping/interleaving finger plates of the joint are secured together by suitable resin.
Claim 9
Dependent Claim
34 words
A joint as claimed in claim 7 in which spacer means are provided on the finger plates of the connection members to ensure and maintain a minimum thickness of resin in the assembled joint.
References Cited (Backward Citations)
GB191224574A
Cited
US1642981A
Cited
FR617722A
Cited
US1835338A
Cited
US3299840A
Cited
GB2006380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-16 | 1985-05-18 | 1985-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-16 | 1989-05-18 | 1989-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-16 | 1993-05-18 | 1993-11-17 | $7700.00 | Window Closed / Lapsed |