Patent US4662786A successfully refreshed from Google Patents.
US4662786A
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Dynamic load compensating system
Assignee: Individual
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Filing: 1985-10-03
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Granted: 1987-05-05
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Expires: 2005-10-03
Abstract
Abstract A dynamic load compensation system comprises: (a) a first element to receive predetermined applied loading, and a base spaced longitudinally from that element, (b) structure including articulated members supporting the first element on the base and acting to resist displacement thereof characterized in that the base may move relatively toward and away from the first element while such predetermined loading is applied to the first element, (c) certain of the members extending longitudinally and laterally leftwardly, and others of the members extending longitudinally and laterally rightwardly, (d) first connections including links pivotally interconnecting the certain members, and (e) second connections including links pivotally interconnecting the other members.
Inventors
- 👤 T. Dave Cherbonnier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:46
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/44; B63G; B63G11/00; E; E21; E21B; E21B19/00; E21B19/002; E21B19/08; E21B19/09
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
157 words
In a dynamic load compensation system, the combination comprising (a) a first element to receive predetermined applied loading, and a base spaced longitudinally from said element, (b) first means including articulated members supporting said first element on said base and acting to resist displacement therefor characterized in that said base may move relatively toward and away from said first element while said predetermined loading is applied to said first element, (c) certain of said members extending longitudinally and laterally leftwardly, and others of said members extending longitudinally and laterally rightwardly, (d) first stabilizing connections including links extending between and pivotally inter-connecting said certain members, said links everywhere spaced from said first element and base, and (e) second stabilizing connections including links extending between and pivotally inter-connecting said other members, said links everywhere spaced from said first element and base, (f) said first means including motion dampers connected to said members in spaced relation to said stabilizing connections.
Claim 2
Dependent Claim
157 words
In a dynamic load compensation system, the combination comprising (a) a first element to receive predetermined applied loading, and a base spaced longitudinally from said element, (b) first means including articulated members supporting said first element on said base and acting to resist displacement therefor characterized in that said base may move relatively toward and away from said first element while said predetermined loading is applied to said first element, (c) certain of said members extending longitudinally and laterally leftwardly, and others of said members extending longitudinally and laterally rightwardly, (d) first stabilizing connections including links extending between and pivotally inter-connecting said certain members, said links everywhere spaced from said first element and base, and (e) second stabilizing connections including links extending between and pivotally inter-connecting said other members, said links everywhere spaced from said first element and base, (f) said first means including motion dampers connected to said members in spaced relation to said stabilizing connections.
Claim 3
Dependent Claim
41 words
The combination of claim 1 wherein said first element comprises a platform, and said articulated members are pivotally connected to the platform and base to pivot relative to the platform as the platform moves relatively toward and away from said base.
Claim 4
Dependent Claim
20 words
The combination of claim 2 wherein said means includes motion dampers connected to said members to yieldably resist pivoting thereof.
Claim 5
Dependent Claim
29 words
The combination of claim 3 wherein said dampers include pistons and cylinders, and fluid adapted to be compressed in response to movement of the cylinders relative to the pistons.
Claim 6
Dependent Claim
54 words
The combination of claim 4 wherein said platform extends in horizontal direction, and said dampers are offset from said platform and connected to lower extents of the members so that such lower extents may be displaced generally parallel to the platform and relative to the base and platform, said links also extending generally horizontally.
Claim 7
Dependent Claim
12 words
The combination of claim 5 wherein said members extend in hyperboloid configuration.
Claim 8
Dependent Claim
11 words
The combination of claim 2 wherein said members include motion dampers.
Claim 9
Dependent Claim
29 words
The combination of claim 7 wherein said dampers include pistons and cylinders, and fluid adapted to be compressed in response to movement of the cylinders relative to the pistons.
Claim 10
Dependent Claim
15 words
The combination of claim 8 wherein said members including said dampers extend in hyperboloidal configuration.
Claim 11
Dependent Claim
17 words
The combination of claim 1 including means exerting said predetermined applied loading, longitudinally, on said first element.
Claim 12
Dependent Claim
14 words
The combination of claim 10 wherein said first element comprises a helicopter landing platform.
Claim 13
Dependent Claim
12 words
The combination of claim 10 wherein said means includes a well string.
Claim 14
Dependent Claim
15 words
The combination of claim 12 including a well derrick on which said system is supported.
Claim 15
Dependent Claim
39 words
The combination of claim 13 including a floating offshore drilling platform supporting said derrick, whereby as the platform heaves upwardly in response to a rising sea, the base moves upwardly relatively toward the platform, which substantially retains its elevation.
Claim 16
Dependent Claim
20 words
The combination of claim 4 including fluid pressure accumulator means connected with said cylinders in fluid pressure communicating relation therewith.
Claim 17
Dependent Claim
17 words
The combination of claim 4 including means to adjust the pressure of said fluid in the cylinders.
Claim 18
Dependent Claim
45 words
The combiantion of claim 4 wherein said pistons are connected to said members to be displaced as a function of angular pivoting of the members relative to said platform, whereby the extent of said piston displacement decreases as the base moves upwardly toward the platform.
Claim 19
Dependent Claim
18 words
The combination of claim 13 wherein said derrick has a framework with support members extending along hyperboloidal directrices.
Claim 20
Dependent Claim
78 words
The combination of claim 14 wherein said means includes a crown block suspended from said element, and a line connected to said crown block to raise and lower same, the line also connected to a drum on the derrick, there being control means engaging said line to extend or shorten its effective length in response to said upward or downward movement, respectively, of the drilling platform, whereby the crown block maintains its elevation relative to the sea bed.
Claim 21
Dependent Claim
81 words
The combination of claim 19 wherein said control means includes two fluid pressure actuators carried by the derrick, the actuators including pistons and cylinders, one of the pistons and cylinders of each actuator operatively connected to a sheave about which the crown block connected line extends, said actuators extending in diverging relation away from said sheave so that the sheave is yieldably displaced in response to force application thereto from the line during said upward and downward movement of the platform.
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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) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |