Patent US3922865A successfully refreshed from Google Patents.
US3922865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress, method of sinking a mattress and vessel suitable for use in said method
Assignee: Aannemers Combinatie Zinkwerken BV
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Filing: 1973-09-10
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Granted: 1975-12-02
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Expires: 1993-09-10
Abstract
Abstract A mattress is disclosed comprising a filter cloth into which at regular intervals metal bars are woven and spaced concrete blocks are connected to the bars, thus securing the blocks to the filter cloth. In use the space between the blocks may be filled with ballast such as rubble, gravel, etc.
Inventors
- 👤 Ate Nijdam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:53
CPC Classifications
B; B63; B63B; B63B27/00; B63B27/19; E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/121; E02B3/122; E02B3/123
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
58 words
A mattress comprising a filter cloth, bars of metal, plastic or the like being woven in said filter cloth at regular intervals, anchoring members being arranged so as to be linked to said bars woven in said cloth and extending from one face of said cloth, and concrete blocks cast on said filter cloth about said anchoring members.
Claim 2
Dependent Claim
58 words
A mattress comprising a filter cloth, bars of metal, plastic or the like being woven in said filter cloth at regular intervals, anchoring members being arranged so as to be linked to said bars woven in said cloth and extending from one face of said cloth, and concrete blocks cast on said filter cloth about said anchoring members.
Claim 3
Dependent Claim
16 words
A mattress as claimed in claim 1 wherein said anchoring members are welded to the bars.
Claim 4
Dependent Claim
41 words
A mattress as claimed in claim 2 wherein said anchoring members are substantially V- or U-shaped members, the apices of which extend into the filter cloth so that the bars in the cloth extend between the upright limbs of said members.
Claim 5
Dependent Claim
24 words
A mattress as claimed in claim 1 characterized in that a rush mat is arranged on the filter cloth and beneath the concrete blocks.
Claim 6
Dependent Claim
31 words
A mattress as claimed in claim 1 wherein said blocks are arranged in rows extending substantially the width of the mattress, said rows being substantially spaced apart longitudinally of said mattress.
Claim 7
Dependent Claim
19 words
A mattress as claimed in claim 1 including rows of spaced, shorter concrete blocks between said first mentioned rows.
Claim 8
Dependent Claim
67 words
A mattress comprising a filter cloth, bars of metal, plastic or the like woven in said filter cloth at regular intervals, the ends of said bars being bent so that said ends form eyelets extending from a face of said cloth, concrete blocks embraceable by pairs of said eyelets, and bolts extending through said eyelets into said blocks for coupling said concrete blocks with said filter cloth.
Claim 9
Dependent Claim
67 words
A mattress comprising a filter cloth, bars of metal, plastic or the like woven in said filter cloth at regular intervals, the ends of said bars being bent so that said ends form eyelets extending from a face of said cloth, concrete blocks embraceable by pairs of said eyelets, and bolts extending through said eyelets into said blocks for coupling said concrete blocks with said filter cloth.
Claim 10
Dependent Claim
40 words
A mattress as claimed in claim 7 characterized in that eyelets are provided on each side of the blocks and a bolt is passed through each set of eyelets located on either side of the block and into the block.
Claim 11
Dependent Claim
24 words
A mattress as claimed in claim 7 characterized in that a rush mat is arranged on said filter cloth and beneath said concrete blocks.
Claim 12
Dependent Claim
37 words
A mattress as claimed in claim 7 wherein said blocks are coupled by said bars to said mattress in rows extending substantially the width of said mattress, said rows being substantially spaced apart longitudinally of said mattress.
Claim 13
Dependent Claim
19 words
A mattress as claimed in claim 10 including rows of spaced, shorter concrete blocks between said first mentioned rows.
Claim 14
Independent Claim
139 words
A method of lowering a mattress, said mattress comprising a flexible filter cloth in which at regular intervals bars of metal, plastic or the like are woven, with which bars concrete blocks are coupled to be spaced apart longitudinally of said mattress, which comprises loading said mattress on a vessel with the concrete blocks shifted towards each other closely by folding the cloth parts situated between the concrete blocks, whereafter one end of the mattress is lowered from the vessel to the ground and anchored on the ground, the mattress being deposited on the ground while the vessel is hauled in a direction away from the anchorage of the mattress, and braking the movement of the mattress in order to ensure gradual lowering of the mattress to the ground such that the cloth is laid in a stretched position.
Claim 15
Independent Claim
139 words
A method of lowering a mattress, said mattress comprising a flexible filter cloth in which at regular intervals bars of metal, plastic or the like are woven, with which bars concrete blocks are coupled to be spaced apart longitudinally of said mattress, which comprises loading said mattress on a vessel with the concrete blocks shifted towards each other closely by folding the cloth parts situated between the concrete blocks, whereafter one end of the mattress is lowered from the vessel to the ground and anchored on the ground, the mattress being deposited on the ground while the vessel is hauled in a direction away from the anchorage of the mattress, and braking the movement of the mattress in order to ensure gradual lowering of the mattress to the ground such that the cloth is laid in a stretched position.
Claim 16
Dependent Claim
42 words
A method as claimed in claim 12 characterized in that a tube is fastened to the end to be anchored to the ground, said tube being filled with water for lowering said end with the aid of a winch or a crane.
Claim 17
Independent Claim
97 words
A method for lowering a mattress comprising a flexible filter cloth in which at regular intervals bars of metal, plastic or the like are woven with which bars concrete blocks are coupled the mattress being wound on a reel having adequate floating capacity for holding the reel with the mattress in a floating state, the reel being coupled with a vessel, anchoring one end of the mattress to the ground, the mattress being wound off the reel for depositing on the ground while the vessel is hauled in a direction away from said end of the mattress.
Claim 18
Independent Claim
97 words
A method for lowering a mattress comprising a flexible filter cloth in which at regular intervals bars of metal, plastic or the like are woven with which bars concrete blocks are coupled the mattress being wound on a reel having adequate floating capacity for holding the reel with the mattress in a floating state, the reel being coupled with a vessel, anchoring one end of the mattress to the ground, the mattress being wound off the reel for depositing on the ground while the vessel is hauled in a direction away from said end of the mattress.
Claim 19
Dependent Claim
34 words
A method as claimed in claim 14 characterized in that cables or chains fastened to winches or the like are coupled with drums provided at the ends of the reel for braking the reel.
Claim 20
Dependent Claim
24 words
A method as claimed in claim 14 characterized in that the mattress is lowered to the ground on the right-hand side of the reel.
Claim 21
Dependent Claim
40 words
A method as claimed in claim 14 characterized in that the reel is coupled with one end of the vessel, the mattress is guided across the vessel and is lowered to the ground at the other end of the vessel.
Claim 22
Dependent Claim
44 words
A method as claimed in claim 14 characterized in that at the rear end of the mattress at least one tube to be filled with water is provided, which tube is lowered to the ground with the aid of a winch or a crane.
Claim 23
Dependent Claim
109 words
A vessel intended for lowering a mattress comprising a filter cloth having bars of metal, plastic or the like woven thereinto at regular intervals and concrete blocks coupled to saiD bars, characterized in that the vessel comprises two consecutive gripping members including pivotable hooks adapted to grip around the concrete blocks, first drive means for reciprocating the gripping members on the line of mattress movement with a given phase difference for controlling the movement of the mattress over a deck of the vessel, and second drive means for pivoting the hooks between a gripping position wherein a hook grips a concrete block and a position free of said block.
Claim 24
Dependent Claim
109 words
A vessel intended for lowering a mattress comprising a filter cloth having bars of metal, plastic or the like woven thereinto at regular intervals and concrete blocks coupled to saiD bars, characterized in that the vessel comprises two consecutive gripping members including pivotable hooks adapted to grip around the concrete blocks, first drive means for reciprocating the gripping members on the line of mattress movement with a given phase difference for controlling the movement of the mattress over a deck of the vessel, and second drive means for pivoting the hooks between a gripping position wherein a hook grips a concrete block and a position free of said block.
Claim 25
Dependent Claim
54 words
A vessel as claimed in claim 19 wherein said first and second drive means are coordinated so that as one of said gripping members grips a block and begins movement with said mattress, the other said gripping member is gripping a longitudinally spaced block on said mattress and completing its movement with said mattress.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |