Patent US3661491A successfully refreshed from Google Patents.
US3661491A
Expired / Lapsed
US
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Means for producing fibrous products having integral tongue and groove edges
Assignee: Johns Manville Corp
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Filing: 1970-09-17
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Granted: 1972-05-09
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Expires: 1990-09-17
Abstract
Abstract Means for consolidating, shaping and fixing the consolidated density and shape of a body of loose mass of fibers containing binders throughout to produce products of fixed configuration and density, which includes the concerted forming of integral tongue and/or groove longitudinal edges for effective complementary uniting of components with a like adjacent component, and the resulting tongue and/or groove fibrous product.
Inventors
- 👤 Richard Lloyd Troyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:47
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/24; B29C67/248; B29C67/249; B27; B27N; B27N3/00; B27N3/08; B27N3/18; B27N3/183; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29K; B29K2309/00; B29K2309/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
363 words
Apparatus for producing shaped and bonded low density fibrous products having integral tongue and groove longitudinal edges, comprising the combination of: a. means for cutting a marginal slit in one longitudinal edge of a moving body of loose mass of fiber containing binder throughout along the length of said body intermediate and parallel to the two major surfaces of the body, b. means for compressing the thus cut moving body of loose mass of fiber containing binder on its two major surfaces to shape the same and to heat the compressed body to cure the binder and fix the imparted shape and compressed density in the compressed body of loose mass of fiber and binder, c. means comprising a mold of the edge groove to be formed combined with said compressing and heating means and positioned to penetrate the marginal slit cut into the lonGitudinal edge of the moving body of loose mass of fiber containing binder while said body is compressed to shape and heated to cure the binder thereof to fix the imparted shape and compressed density whereby simultaneously with the said compressing and heating to shape and cure the binder of the body of loose mass of fiber to fix the imparted shaped and compressed density therein by the said means provided therefor, the mold of the edge groove cooperates with said compressing and heating means to form an integral groove of the marginal slit within the longitudinal edge, and d. means comprising a mold of the edge tongue to be formed combined with said compressing and heating means and positioned to receive a marginal portion of the longitudinal edge of the moving body of mass of fibers containing binder opposite the edge cut while said body is being compressed to shape and heated to cure the binder thereof to fix the imparted shape and compressed density, and which further compresses the said marginal portion of the longitudinal edge within the said mold of the tongue during the compression to shape and curing of the binder to fix the shape whereby simultaneously therewith the mold of the edge tongue cooperates to form an integral tongue in the other longitudinal edges.
Claim 2
Dependent Claim
363 words
Apparatus for producing shaped and bonded low density fibrous products having integral tongue and groove longitudinal edges, comprising the combination of: a. means for cutting a marginal slit in one longitudinal edge of a moving body of loose mass of fiber containing binder throughout along the length of said body intermediate and parallel to the two major surfaces of the body, b. means for compressing the thus cut moving body of loose mass of fiber containing binder on its two major surfaces to shape the same and to heat the compressed body to cure the binder and fix the imparted shape and compressed density in the compressed body of loose mass of fiber and binder, c. means comprising a mold of the edge groove to be formed combined with said compressing and heating means and positioned to penetrate the marginal slit cut into the lonGitudinal edge of the moving body of loose mass of fiber containing binder while said body is compressed to shape and heated to cure the binder thereof to fix the imparted shape and compressed density whereby simultaneously with the said compressing and heating to shape and cure the binder of the body of loose mass of fiber to fix the imparted shaped and compressed density therein by the said means provided therefor, the mold of the edge groove cooperates with said compressing and heating means to form an integral groove of the marginal slit within the longitudinal edge, and d. means comprising a mold of the edge tongue to be formed combined with said compressing and heating means and positioned to receive a marginal portion of the longitudinal edge of the moving body of mass of fibers containing binder opposite the edge cut while said body is being compressed to shape and heated to cure the binder thereof to fix the imparted shape and compressed density, and which further compresses the said marginal portion of the longitudinal edge within the said mold of the tongue during the compression to shape and curing of the binder to fix the shape whereby simultaneously therewith the mold of the edge tongue cooperates to form an integral tongue in the other longitudinal edges.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 wherein the mold of the edge tongue comprises a pair of opposing, spaced-apart plane mold faces.
Claim 4
Dependent Claim
18 words
The apparatus of claim 1 wherein the means for cutting the marginal slit comprises a revolving disk knife.
Claim 5
Dependent Claim
71 words
The apparatus of claim 1 wherein said mold includes a heated plate positioned intermediate and in line with the cutting means and the mold of the edge groove to penetrate the slit cut in the marginal portion prior to the penetration of the mold of the edge groove into said slit to initiate the cure of the binder contained throughout the fiber in the area of the surfaces of the slit.
Claim 6
Dependent Claim
224 words
Apparatus for producing shaped and bonded low density fibrous products having integral tongue and groove longitudinal edges, comprising the combination of: a. means for cutting a marginal slit in one longitudinal edge of a moving body of loose mass of fiber containing binders throughout along the length of said body intermediate and parallel to the two major surfaces, b. means for compressing the thus cut moving body of loose mass of fiber containing binder on its two major surfaces to shape the same and to heat the compressed density in the compressed body of loose mass of fiber and binder, and c. means of comprising a mold the edge groove to be formed combined with said compressing and heating means and positioned to penetrate the marginal slit cut into the longitudinal edge of the moving body of a loose mass of fibers containing binder while said body is compressed to shape and heated to cure the binder thereof and fix the imparted shape and compressed density whereby simultaneously with the said compressing and heating to shape and cure the binder of the body of loose mass of fiber, to fix the imparted shape and compressed density therein by the means provided therefor, the mold cooperates with said compressing and heating means to form an integral groove of the marginal slit within the longitudinal edge.
Claim 7
Dependent Claim
224 words
Apparatus for producing shaped and bonded low density fibrous products having integral tongue and groove longitudinal edges, comprising the combination of: a. means for cutting a marginal slit in one longitudinal edge of a moving body of loose mass of fiber containing binders throughout along the length of said body intermediate and parallel to the two major surfaces, b. means for compressing the thus cut moving body of loose mass of fiber containing binder on its two major surfaces to shape the same and to heat the compressed density in the compressed body of loose mass of fiber and binder, and c. means of comprising a mold the edge groove to be formed combined with said compressing and heating means and positioned to penetrate the marginal slit cut into the longitudinal edge of the moving body of a loose mass of fibers containing binder while said body is compressed to shape and heated to cure the binder thereof and fix the imparted shape and compressed density whereby simultaneously with the said compressing and heating to shape and cure the binder of the body of loose mass of fiber, to fix the imparted shape and compressed density therein by the means provided therefor, the mold cooperates with said compressing and heating means to form an integral groove of the marginal slit within the longitudinal edge.
Claim 8
Dependent Claim
58 words
The apparatus of claim 5 wherein said mold includes a heated plate positioned intermediate and to penetrate the slit out in the marginal portion prior to the penetration of the mold of the edge groove into said slit to initiate the cure of the binder contained throughout the fiber in the area of the surfaces of the slit.
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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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |