Patent US3866769A successfully refreshed from Google Patents.
US3866769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood chip handling system
Assignee: WOOD TECHNOLOGY Inc A CORP OF MICHIGAN
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Filing: 1974-02-20
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Granted: 1975-02-18
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Expires: 1994-02-20
Abstract
Abstract A system for handling wood chips wherein an unloader vehicle unloads the chips from a truck trailer or the like to a transfer vehicle, adapted to be positioned adjacent the trailer, and having a roadway on which the unloader vehicle travels as it moves in a to-and-fro path of travel to and from the trailer. The roadway is provided with a grid which supports the unloader vehicle and includes openings therein of such size as to pass free-falling chips deposited by the unloader vehicle. A chip receiving conveyor mechanism is disposed below the grid for receiving the chips and conveying them to the opposite end of the vehicle where they are transferred to a blower which provides a high velocity airstream to carry the chips to, and pile them at, a remote location.
Inventors
- 👤 Norval K Morey
- 👤 Leward N Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:37
CPC Classifications
B; B65; B65G; B65G67/00; B65G67/02; B65G67/24; B60; B60P; B60P3/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
210 words
Apparatus for unloading and piling particulate material, such as wood chips or the like from a load carrying vehicle having a load supporting floor, said apparaTus comprising a material handling vehicle having frame means defining a material handling chamber, deck means on said frame means extending at a level above the chamber longitudinally fore and aft of said handling vehicle, means for vertically positioning the forward end of said deck means at the level of the floor of a load carrying vehicle, means defining an opening through said deck means through which material may be dropped into said chamber, said deck means including wheel support portions extending along the sides of said chamber forming elongate, fore and aft extending supports for the wheels of an auxiliary material carrying vehicle such as a front end loader to enable it to move back and forth lengthwise of said deck means across said opening to and from a rearward end limit in which said auxiliary vehicle is positioned to dump material through said opening into said chamber, blower means at the rearward end of said handling vehicle for blowing material from said chamber, and conveying means in said chamber for conveying material introduced into said chamber through said opening to said blower means.
Claim 2
Dependent Claim
210 words
Apparatus for unloading and piling particulate material, such as wood chips or the like from a load carrying vehicle having a load supporting floor, said apparaTus comprising a material handling vehicle having frame means defining a material handling chamber, deck means on said frame means extending at a level above the chamber longitudinally fore and aft of said handling vehicle, means for vertically positioning the forward end of said deck means at the level of the floor of a load carrying vehicle, means defining an opening through said deck means through which material may be dropped into said chamber, said deck means including wheel support portions extending along the sides of said chamber forming elongate, fore and aft extending supports for the wheels of an auxiliary material carrying vehicle such as a front end loader to enable it to move back and forth lengthwise of said deck means across said opening to and from a rearward end limit in which said auxiliary vehicle is positioned to dump material through said opening into said chamber, blower means at the rearward end of said handling vehicle for blowing material from said chamber, and conveying means in said chamber for conveying material introduced into said chamber through said opening to said blower means.
Claim 3
Dependent Claim
33 words
Apparatus as defined in claim 1 further comprising upstanding side walls extending along opposite longitudinal sides of said deck for confining said auxiliary vehicle to essentially fore and aft movement along said deck.
Claim 4
Dependent Claim
65 words
Apparatus as defined in claim 1 wherein said means defining said opening comprises a grid section extending across the entire transverse width of said deck, first transversely extending conveying means underlying said grid section for conveying material to one side of said chamber, and second longitudinally extending conveying means for receiving material from said first conveying means and transporting said material to said blower means.
Claim 5
Dependent Claim
43 words
Apparatus as defined in claim 1 wherein said conveyor means includes an enclosed screw conveyor feeding said blower means, said screw conveyor having a screw of constant diameter and a housing of a diameter increasing toward the discharge end of the screw conveyor.
Claim 6
Dependent Claim
31 words
Apparatus as defined in claim 1 in which said means for vertically positioning the deck means includes a vertically adjustable jack also serving to stabilize the vehicle during the unloading operation.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |