US3927833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming multiple-component composite structures
Assignee: GLAS-CRAFT Inc
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Filing: 1975-07-25
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Granted: 1975-12-23
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Expires: 1995-07-25
Abstract
Abstract A method and apparatus can be used to form complex laminates and other such structures with economical use of resins. This apparatus and method provides a mixed spray of a plural component liquid resin and curing agent with granular and fiber material entrained in the mixed spray. The apparatus includes a plurality of resin and curing agent spray means and granular and fibrous material dispensing means associated with the curing agent and resin spray means. The plurality of sprays are adapted to intersect and mix externally of the apparatus prior to deposition upon a surface. One or more granular materials can be entrained in a gaseous medium and mixed with the liquid spray so as to provide a mixed spray of multiple component materials. Reinforcing chopped fibers such as glass may be introduced into this mixed spray from a chopper located above the array of powder and liquid sprays.
Inventors
- 👤 David Harrison
- 👤 Raul T Sainz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:10
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/14; B05B7/1481; B05B7/149; B05B7/1495; B29; B29C; B29C41/00; B29C41/34; B29C41/36; B29C41/365; Y; Y10; Y10S; Y10S239/00; Y10S239/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
185 words
A spray gun for forming multiple-component composite structures comprising a housing forming a handle and carrying a trigger, a pair of spray-forming means carried at the forward portion of the housing at spaced-apart locations, each of said spray-forming means being adapted for connection with a source of plural component material, an atomizing nozzle carried by the housing at a location centrally located between the pair of spray-forming means and adapted for connection with a source of curing agent, a pair of granular emitting means carried by the forward portion of the housing, each of said granular emitting means being located closely adjacent one of said pair of sprayforming means, a pair of passageways formed by the housing and connected at the rear with the source of granular material, cutter means for cutting fibrous materials adjustably carried by the housing having an orifice for the ejection of cut fibers located above the granular emitting means and centrally located therebetween, a valve means within the housing operated by the trigger simultaneously causing the operation of the spray-forming means, the curing agent atomizing nozzle, and the cutter means.
Claim 2
Dependent Claim
185 words
A spray gun for forming multiple-component composite structures comprising a housing forming a handle and carrying a trigger, a pair of spray-forming means carried at the forward portion of the housing at spaced-apart locations, each of said spray-forming means being adapted for connection with a source of plural component material, an atomizing nozzle carried by the housing at a location centrally located between the pair of spray-forming means and adapted for connection with a source of curing agent, a pair of granular emitting means carried by the forward portion of the housing, each of said granular emitting means being located closely adjacent one of said pair of sprayforming means, a pair of passageways formed by the housing and connected at the rear with the source of granular material, cutter means for cutting fibrous materials adjustably carried by the housing having an orifice for the ejection of cut fibers located above the granular emitting means and centrally located therebetween, a valve means within the housing operated by the trigger simultaneously causing the operation of the spray-forming means, the curing agent atomizing nozzle, and the cutter means.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 wherein each of the granular emitting means is located about 1 inch above its associated spray-forming means for resinous material.
Claim 4
Dependent Claim
31 words
The apparatus of claim 1 wherein the orifice for ejection of cut fibers is located about 3 inches above the pair of spray-forming means for resinous material and centrally located therebetween.
Claim 5
Dependent Claim
77 words
Apparatus for forming multiple-component composite structures comprising first means to form a liquid resin and curing agent into a catalyzed resin spray pattern base; second means to emit granular material from closely adjacent and above said first means and into the catalyzed resin spray pattern base; third means to project cut fibers from above said first and second means into the catalyzed resin spray pattern base and control means to operate said first, second and third means.
Claim 6
Dependent Claim
77 words
Apparatus for forming multiple-component composite structures comprising first means to form a liquid resin and curing agent into a catalyzed resin spray pattern base; second means to emit granular material from closely adjacent and above said first means and into the catalyzed resin spray pattern base; third means to project cut fibers from above said first and second means into the catalyzed resin spray pattern base and control means to operate said first, second and third means.
Claim 7
Dependent Claim
145 words
Apparatus for forming multiple-component composite structures comprising a housing forming a handle and carrying a trigger; a plurality of spray-forming means carried at the forward portion of the housing at spaced-apart locations, said plurality of spray-forming means being connected with separate sources of resin material and curing agent; granular emitting means carried by the forward portion of the housing; a fluidized bed source of granular material; a hose connected with said fluidized bed source, carried by said housing and terminating adjacent to said granular emitting means; means to entrain granular material in a flow of gas in said hose to deliver the granular material to said granular emitting means; cutter means for cutting fibrous materials carried by the housing above the granular emitting means; and means to cause the operation of the plurality of spray-forming means, the source of granulAr material and the cutter means.
Claim 8
Dependent Claim
145 words
Apparatus for forming multiple-component composite structures comprising a housing forming a handle and carrying a trigger; a plurality of spray-forming means carried at the forward portion of the housing at spaced-apart locations, said plurality of spray-forming means being connected with separate sources of resin material and curing agent; granular emitting means carried by the forward portion of the housing; a fluidized bed source of granular material; a hose connected with said fluidized bed source, carried by said housing and terminating adjacent to said granular emitting means; means to entrain granular material in a flow of gas in said hose to deliver the granular material to said granular emitting means; cutter means for cutting fibrous materials carried by the housing above the granular emitting means; and means to cause the operation of the plurality of spray-forming means, the source of granulAr material and the cutter means.
Claim 9
Dependent Claim
151 words
Apparatus for forming multiple-component composite structures comprising a plurality of spray-forming means carried by a housing at spaced-apart locations, each of said plurality of spray-forming means being connected with a source of plural component material including separate sources of resin and curing agent and at least one of the plurality of spray-forming means emitting resin at high velocity under the action of high hydraulic pressure; a granular emitting means carried by the housing and being located closely adjacent said one of the plurality of spray-forming means; a means to entrain granular material in a flow of gas and deliver it to the granular emitting means, including smooth, uninterrupted walls from the source of granular material to said granular emitting means; a cutter to form fibrous material into fibers of predetermined length; and means carried by the housing to operate simultaneously, said plurality of spray-forming means, the curing agent and said cutter.
Claim 10
Dependent Claim
151 words
Apparatus for forming multiple-component composite structures comprising a plurality of spray-forming means carried by a housing at spaced-apart locations, each of said plurality of spray-forming means being connected with a source of plural component material including separate sources of resin and curing agent and at least one of the plurality of spray-forming means emitting resin at high velocity under the action of high hydraulic pressure; a granular emitting means carried by the housing and being located closely adjacent said one of the plurality of spray-forming means; a means to entrain granular material in a flow of gas and deliver it to the granular emitting means, including smooth, uninterrupted walls from the source of granular material to said granular emitting means; a cutter to form fibrous material into fibers of predetermined length; and means carried by the housing to operate simultaneously, said plurality of spray-forming means, the curing agent and said cutter.
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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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |