Patent US4469216A successfully refreshed from Google Patents.
US4469216A
Expired / Lapsed
US
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Multiple funnel flake aligner for making a loosely felted mat of aligned wood flakes
Assignee: BOARD OF CONTROL OF MICHIGAN TECHNOLOGICAL UNIVERSITY A BODY CORP OF MICH
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Filing: 1982-04-05
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Granted: 1984-09-04
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Expires: 2002-04-05
Abstract
Abstract Apparatus for forming a loosely felted mat of thin elongated wood flakes with said flakes being aligned in mutually parallel relation. The apparatus includes a mat supporting surface, a hopper for holding a quantity of wood flakes, and a funnel assembly for receiving wood flakes from the hopper and for causing the flakes to be aligned in substantially parallel side-by-side relation as they are deposited on the supporting surface. The funnel assembly includes a plurality of funnels positioned in adjacent side-by-side relation, the funnels each including inclined walls having lower edges defining an elongated narrow opening adjacent the supporting surface and upper edges defining an opening wider than said narrow opening and for receiving wood flakes from the hopper. The narrow openings of the funnels are parallel and distribute the flakes uniformly across the supporting surface.
Inventors
- 👤 Bruce A. Haataja
- 👤 Tauno B. Kilpela
- 👤 Gordon P. Krueger
- 👤 Roy D. Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:39
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14; B27N3/143; B65; B65G; B65G69/00; B65G69/04; B65G69/0441; B65G69/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
341 words
An apparatus for forming a loosely felted mat of thin elongated wood flakes with said flakes being aligned in mutually parallel relation, said apparatus comprising means defining a mat supporting surface including a conveyor belt having an upper belt flight adapted to be continuously moving, means for holding a quantity of wood flakes, means for continuously feeding wood flakes from said means for holding onto said supporting surface and for aligning said flakes in substantially parallel side-by-side relation, said means for feeding and aligning including means defining a plurality of rows of funnels, said funnels each including inclined walls having lower edges defining an elongated narrow opening adjacent said supporting surface and upper edges defining an opening wider than said elongated narrow opening and for receiving wood flakes from said means for holding, said wider opening being directly above said elongated narrow opening, said rows of funnels each extending in a direction transverse to the direction of movement of said conveyor belt and each including a plurality of funnels positioned in adjacent side-by-side relation, said funnels being positioned such that said upper edges of adjacent funnels are joined and comprise narrow linear edges, such that said lower edges of adjacent funnels are spaced apart, and such that said elongated narrow openings defined by said lower edges are substantially parallel to the direction of movement of said conveyor belt so that elongated wood flakes deposited by said funnels are aligned substantially parallel to the direction of movement of said conveyor belt, said rows of funnels being positioned in adjacent side-by-side relation in the direction of movement of said conveyor belt, with said rows being staggered such that the longitudinal axes defined by said elongated openings of said funnels of any one of said rows are positioned laterally, with respect to the direction of movement of said conveyor belt, of the longitudinal axes defined by said elongated openings of said funnels of the others of said rows, so that the wood flakes are deposited on said belt continuously and uniformly across said belt.
Claim 2
Independent Claim
341 words
An apparatus for forming a loosely felted mat of thin elongated wood flakes with said flakes being aligned in mutually parallel relation, said apparatus comprising means defining a mat supporting surface including a conveyor belt having an upper belt flight adapted to be continuously moving, means for holding a quantity of wood flakes, means for continuously feeding wood flakes from said means for holding onto said supporting surface and for aligning said flakes in substantially parallel side-by-side relation, said means for feeding and aligning including means defining a plurality of rows of funnels, said funnels each including inclined walls having lower edges defining an elongated narrow opening adjacent said supporting surface and upper edges defining an opening wider than said elongated narrow opening and for receiving wood flakes from said means for holding, said wider opening being directly above said elongated narrow opening, said rows of funnels each extending in a direction transverse to the direction of movement of said conveyor belt and each including a plurality of funnels positioned in adjacent side-by-side relation, said funnels being positioned such that said upper edges of adjacent funnels are joined and comprise narrow linear edges, such that said lower edges of adjacent funnels are spaced apart, and such that said elongated narrow openings defined by said lower edges are substantially parallel to the direction of movement of said conveyor belt so that elongated wood flakes deposited by said funnels are aligned substantially parallel to the direction of movement of said conveyor belt, said rows of funnels being positioned in adjacent side-by-side relation in the direction of movement of said conveyor belt, with said rows being staggered such that the longitudinal axes defined by said elongated openings of said funnels of any one of said rows are positioned laterally, with respect to the direction of movement of said conveyor belt, of the longitudinal axes defined by said elongated openings of said funnels of the others of said rows, so that the wood flakes are deposited on said belt continuously and uniformly across said belt.
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) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |