Patent FR539564A successfully refreshed from Google Patents.
US4479743A
Expired / Lapsed
US
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Wear resistant insert for particulate material flow ducts
Assignee: Individual
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Filing: 1983-06-15
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Granted: 1984-10-30
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Expires: 2003-06-15
Abstract
Abstract A wear resistant body mountable at a directional change point within a particulate material duct. A plurality of successively spaced cavities are formed in the body to trap and collect particulates flowing across the body such that the collected particulates act as a wear resistant barrier to wear of the body and the adjacent inner wall surface of the duct. A plurality of spaced, planar ribs are mounted on the body, with adjacent ribs defining a cavity therebetween.
Inventors
- 👤 Ronald F. Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:36
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/52; B65G53/523; B65G53/528; F; F16; F16L; F16L57/00; F16L57/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
220 words
A wear resistant insert for particulate material flow ducts comprising: a body mounted within a duct, having a central wall portion and a spaced side wall integral with the central wall portion and extending outward therefrom to form a recess within the body; and means mounted on the body, for forming a plurality of cavities in the body adapted to collect particulate material flowing across the body, wherein the means comprises: a plurality of spaced, planar ribs mounted on the side walls and the central portion of the body to form successively spaced cavities within the interior of the body; a first set of spaced planar ribs mounted on and extending upward from the central wall portion of the body; the first set of ribs forming a plurality of spaced cavities extending longitudinaly along the central wall portion of the body; a second set of spaced, planar ribs mounted on and extending inward from the side walls of the body, the second set of ribs forming a plurality of spaced cavities extending longitudinaly along the sides walls of the body; the first set of ribs extending at a first pre-determined angle from the central wall portion of the body; and the second set of ribs extending at a second, different pre-determined angle with respect to the first set of ribs.
Claim 2
Dependent Claim
220 words
A wear resistant insert for particulate material flow ducts comprising: a body mounted within a duct, having a central wall portion and a spaced side wall integral with the central wall portion and extending outward therefrom to form a recess within the body; and means mounted on the body, for forming a plurality of cavities in the body adapted to collect particulate material flowing across the body, wherein the means comprises: a plurality of spaced, planar ribs mounted on the side walls and the central portion of the body to form successively spaced cavities within the interior of the body; a first set of spaced planar ribs mounted on and extending upward from the central wall portion of the body; the first set of ribs forming a plurality of spaced cavities extending longitudinaly along the central wall portion of the body; a second set of spaced, planar ribs mounted on and extending inward from the side walls of the body, the second set of ribs forming a plurality of spaced cavities extending longitudinaly along the sides walls of the body; the first set of ribs extending at a first pre-determined angle from the central wall portion of the body; and the second set of ribs extending at a second, different pre-determined angle with respect to the first set of ribs.
Claim 3
Dependent Claim
229 words
A wear resistant insert for particulate material flow ducts comprising: a body mounted within the duct having a central wall portion and a spaced side wall integral with the central wall portion and extending outward therefrom to form a recess within the body; and means mounted on the body, for forming a plurality of cavities in the body adapted to collect particulate material flowing across the body, with the collected particulate material acting as the barrier to wear of the body comprising: a plurality of spaced, planar ribs mounted on the side walls and the central wall portion of the body to form successively spaced cavities within the interior of the body; a first set of spaced, planar ribs mounted on and extending upward from the central wall portion of the body, the first set of ribs forming a plurality of spaced cavities extending longitudinaly along the central wall portion of the body; a second set of spaced planar ribs mounted on and extending inward from the side walls of the body, the second set of ribs forming a plurality of spaced wall cavities extending longitudinaly along the side walls of the body; and first and second planar members mounted on the top of opposed ends of the first set of ribs, the first and second planar support members supporting the bottom end of the second set of ribs.
Claim 4
Dependent Claim
229 words
A wear resistant insert for particulate material flow ducts comprising: a body mounted within the duct having a central wall portion and a spaced side wall integral with the central wall portion and extending outward therefrom to form a recess within the body; and means mounted on the body, for forming a plurality of cavities in the body adapted to collect particulate material flowing across the body, with the collected particulate material acting as the barrier to wear of the body comprising: a plurality of spaced, planar ribs mounted on the side walls and the central wall portion of the body to form successively spaced cavities within the interior of the body; a first set of spaced, planar ribs mounted on and extending upward from the central wall portion of the body, the first set of ribs forming a plurality of spaced cavities extending longitudinaly along the central wall portion of the body; a second set of spaced planar ribs mounted on and extending inward from the side walls of the body, the second set of ribs forming a plurality of spaced wall cavities extending longitudinaly along the side walls of the body; and first and second planar members mounted on the top of opposed ends of the first set of ribs, the first and second planar support members supporting the bottom end of the second set of ribs.
Claim 5
Dependent Claim
143 words
A wear resistant insert for particulate material flow ducts comprising: a body mountable within the duct and having spaced side walls integral with and extending outward from a central wall portion to define a recess within the body; a first set of spaced, planar ribs mounted on and extending upward from the central wall portion of the body, the first set of ribs forming a plurality of spaced cavities extending longitudinaly along the central wall portion of the body; first and second planar members mounted on the top of opposed ends of the first set of ribs; and a second set of spaced, planar ribs mounted on the first and second planar members and extending inward from the side walls of the body, the second set of ribs forming a plurality of spaced cavities extending longitudinaly along the side walls of the body.
Claim 6
Dependent Claim
143 words
A wear resistant insert for particulate material flow ducts comprising: a body mountable within the duct and having spaced side walls integral with and extending outward from a central wall portion to define a recess within the body; a first set of spaced, planar ribs mounted on and extending upward from the central wall portion of the body, the first set of ribs forming a plurality of spaced cavities extending longitudinaly along the central wall portion of the body; first and second planar members mounted on the top of opposed ends of the first set of ribs; and a second set of spaced, planar ribs mounted on the first and second planar members and extending inward from the side walls of the body, the second set of ribs forming a plurality of spaced cavities extending longitudinaly along the side walls of the body.
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) | 1987-10-30 | 1988-04-30 | 1988-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-30 | 1992-04-30 | 1992-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-30 | 1996-04-30 | 1996-10-30 | $7700.00 | Window Closed / Lapsed |