# US 5,700,345 A · Continuous structure forming apparatus

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- Number: US 5,700,345 A
- Document ID: US5700345A
- Status: Granted
- Kind: A
- Application number: 08/691,934
- Filed: 1996-08-05
- Granted: 1997-12-23
- Earliest claimed: 1988-08-23
- Inventors: LeRoy Payne
- Web page: https://patentgrep.com/patent/US5700345A

## CPC

- E02B 5/02: Making or lining canals {(linings in general E02B13/02; digging canals E02F)}
- B29B 11/14: characterised by structure or composition
- B29C 49/071: {Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties}
- B29C 70/025: {with particular filler}
- B29C 70/026: {and with one or more layers of pure plastics material, e.g. foam layers (applying a non-preformed coating, e.g. a gel-coat B29C37/0025; with foam blocks B29C70/86)}
- B29C 70/50: for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- E02B 3/121: {Devices for applying linings on banks or the water bottom (for lining canals E02B5/02)}
- E02B 3/126: {mainly consisting of bituminous material or synthetic resins}
- E02B 3/128: {Coherent linings made on the spot, e.g. cast in situ, extruded on the spot (for canal linings E02B5/02)}
- B29C 2949/0715: the preform having one end closed
- B29K 2105/06: containing reinforcements, fillers or inserts
- B29K 2105/16: Fillers
- B29K 2105/26: Scrap {or recycled material}
- E02B 2201/04: using old tires for hydraulic engineering
- Y02W 30/62: Plastics recycling; Rubber recycling
- Y10T 156/1722: Means applying fluent adhesive or adhesive activator material between layers
- Y10T 156/1729: Fluid applied to nip between indefinite length webs
- E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F)
- B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method of forming a continuous structure includes the steps of flowing a first liquid reactive resin forming material over a base surface, forming a first thin substantially uniform layer thereof and gelling the first layer. A second liquid resin forming material is flowed through an orifice under pressure forming a liquid stream thereof. The liquid stream is gelled to form a continuous filament with structural integrity as it advances toward the first gelled layer. The filament is contacted with the first layer and distributed thereover in a preselected pattern forming a porous non-woven filament blanket. A particulate solid material is distributed substantially uniformly over the filament blanket. A third liquid resin forming material is flowed over the blanket forming a second thin substantially uniform layer of the third liquid resin forming material and the layer is gelled. The resulting freshly formed structure is compressed and positioned in a final configuration while the structure is flexible and adhesive after which curing is completed. Also, apparatus forming the structure as well as the structure itself.

## Claims

### Claim 1

Mobile continuous structure forming apparatus including a supporting portion, a raw material supplying portion, a mixing portion, a matrix forming portion and a control portion; said supporting portion including at least one base section, carriage means operatively associated with said base section; said raw material supplying portion including a plurality of reservoirs operatively connected with said supporting portion, said reservoirs being connected independently with said mixing portion through flexible conduit means; said mixing portion including a generally vertically oriented elongated mixing chamber mounted on said base section, a rotatable mixing element disposed within said mixing chamber; said matrix forming portion including first mixture distributing means disposed below a first outlet of said mixing chamber including a first elongated barrier member disposed closely adjacent to a matrix forming path through said apparatus and substantially perpendicular thereto, filament distributing means including an orifice disposed below a second outlet of said mixing chamber and operatively connected thereto, additive particle distributing means disposed subsequent to said filament distributing means, second mixture distributing means including a second elongated barrier member disposed below a third outlet of said mixing chamber, a shallow tray member disposed below said distributing means and below said matrix forming path through said apparatus, pressure applying means disposed subsequent to said second mixture distributing means; said control portion including programmable memory means, coordinating means, sensing means, actuating means and circuitry transmitting signals from said sensing means to said coordinating means for comparison with said memory means and activation of said actuating means to form a continuous resin structure.

### Claim 2 (depends on 1)

Mobile continuous structure forming apparatus according to claim 1 wherein said elongated barrier members are elongated blade members inclined to said matrix forming path in the direction of matrix advance.

### Claim 3 (depends on 1)

Mobile continuous structure forming apparatus according to claim 1 including plastic film dispensing means disposed adjacent to at least one of said barrier members.

### Claim 4 (depends on 1)

Mobile continuous structure forming apparatus according to claim 1 wherein said pressure applying means includes at least one moving surface perpendicular to said matrix forming path.

### Claim 5 (depends on 1)

Mobile continuous structure forming apparatus according to claim 1 wherein said pressure applying means includes a patterned surface.