Patent US3806002A successfully refreshed from Google Patents.
US3806002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slurry dispensing apparatus with movable center of gravity
Assignee: MILLER MARY ANN
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Filing: 1973-05-23
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Granted: 1974-04-23
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Expires: 1993-05-23
Abstract
Abstract A wheeled apparatus for spraying cementitious material. A trough shaped container mounted on wheels has a drive shaft extending along the bottom wall of the container which is in driving engagement with a rotor positioned in a stator communicating with the container. A motor is in driving engagement with the drive shaft whereas a hose is connected to the outlet pipe. Means are provided to force pressurized air through a second hose so as to force the cementitious material outwardly. The drive shaft is bearingly supported only at its top end which is positioned externally of the cementitious material within the container. The trough shaped container has a center of gravity which moves forward as the container is filled.
Inventors
- 👤 E Mills
- 👤 J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:57
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
361 words
An apparatus for dispensing slurry comprising: a trough shaped container having a forward end with a first end wall and an aft end with a second end wall with a downward sloping wall connected therebetween, said first end wall having a first opening and said second end wall having a second opening; a downwardly sloping frame having said container fixedly mounted thereon, said frame having a first wheel support and a second wheel support both of which extend downwardly from said container in a direction from said forward end to said aft end; a plurality of front wheels rotatably mounted to said first wheel support and a plurality of rear wheels mounted to said second wheel support; drive means including a motor mounted to said aft end; said downward sloping wall of said container diverges from said second end wall to said first end wall forming a material receiving cavity having a major portion thereof located away from said rear wheels and approximately over said front wheels locating a center of gravity of said container when filled away from said rear wheels and approximately over said front wheels in a forward location and locating said center of gravity of said container when empty away from said front wheels and approximately over said rear wheels in a rear location; a forward handle attached to said forward end being located forward of said front wheels allowing said container when full and said center of gravity in said forward location to be pivoted on said front wheels; an aft handle attached to said aft end being located rearwardly of said rear wheels allowing said container when empty and said center of gravity in said rear location to be pivoted on said rear wheels; an outlet pipe mounted to said first end wall at said first opening; an auger rotatably mounted in said pipe for forcing slurry through and out said pipe, said auger being entirely positioned in said outlet pipe; and, a drive shaft slanting downward adjacent said downward sloping wall having a bottom end positioned at said second opening and attached to said auger and a top end drivingly coupled to said motor.
Claim 2
Independent Claim
361 words
An apparatus for dispensing slurry comprising: a trough shaped container having a forward end with a first end wall and an aft end with a second end wall with a downward sloping wall connected therebetween, said first end wall having a first opening and said second end wall having a second opening; a downwardly sloping frame having said container fixedly mounted thereon, said frame having a first wheel support and a second wheel support both of which extend downwardly from said container in a direction from said forward end to said aft end; a plurality of front wheels rotatably mounted to said first wheel support and a plurality of rear wheels mounted to said second wheel support; drive means including a motor mounted to said aft end; said downward sloping wall of said container diverges from said second end wall to said first end wall forming a material receiving cavity having a major portion thereof located away from said rear wheels and approximately over said front wheels locating a center of gravity of said container when filled away from said rear wheels and approximately over said front wheels in a forward location and locating said center of gravity of said container when empty away from said front wheels and approximately over said rear wheels in a rear location; a forward handle attached to said forward end being located forward of said front wheels allowing said container when full and said center of gravity in said forward location to be pivoted on said front wheels; an aft handle attached to said aft end being located rearwardly of said rear wheels allowing said container when empty and said center of gravity in said rear location to be pivoted on said rear wheels; an outlet pipe mounted to said first end wall at said first opening; an auger rotatably mounted in said pipe for forcing slurry through and out said pipe, said auger being entirely positioned in said outlet pipe; and, a drive shaft slanting downward adjacent said downward sloping wall having a bottom end positioned at said second opening and attached to said auger and a top end drivingly coupled to said motor.
Claim 3
Dependent Claim
57 words
The apparatus of claim 1 wherein: said first end wall has a top edge extending the length thereof positioned at an elevation lower than the position of said second opening in said second end wall allowing slurry within said container to overflow prior to flowing through said second hole, said drive shaft extends through said second hole.
Claim 4
Dependent Claim
175 words
The apparatus of claim 2 wherein: said auger rotates off center in said pipe causing said drive shaft to rotate off center; said first opening is sufficiently large to allow said drive shaft to rotate off center, said drive shaft includes a flexible seal mounted thereto and a collar mounted on said shaft forcing said seal against said first end wall sealing said first opening; said drive means includes a rotatable output shaft with a toothed member mounted thereon, said top end of said drive shaft has a toothed member mounted thereon positioned adjacent to said toothed member of said output shaft, said drive means includes a continuous roller chain flexibly coupling said toothed member of said drive shaft with said toothed member of said output shaft allowing said output shaft to rotate on center while said drive shaft rotates off center, said drive shaft being solely supported by said auger and said roller chain; said output shaft includes a backup nut mounted thereon to allow manual reversing of said output shaft and said auger.
Claim 5
Dependent Claim
80 words
The apparatus of claim 3 wherein: said frame includes a pair of downwardly sloping tubes extending the length thereof and a pair of sheet metal members fixedly mounted to said tubes and depending therefrom and extending on opposite sides of said frame through the length of said frame, said first support and said second support are fixedly connected to said sheet metal members and extend downwardly at right angles to said tubes, said container is fixedly connected to said tubes.
Claim 6
Dependent Claim
148 words
The apparatus of claim 4 and further comprising: an agitator tube spirallingly wrapped on said drive shaft which includes a pair of collars mounted thereon fixedly receiving opposite ends of said agitator tube; said drive means includes a right angle gear box with said output shaft projecting outwardly thereof, said gear box being mounted at said aft end to said sheet metal members with said motor mounted to said gear box and depending therefrom; discharge means including a flexible hose attached to said pipe for receiving slurry and an air hose connectable to a source of pressurized air, said air hose means mounted to said flexible hose both of which have adjacent outlets, said discharge means further includes means operable to control flow of pressurized air from said air hose to spray said material from said flexible hose and to simultaneously activate said motor to rotate said auger.
References Cited (Backward Citations)
US2606645A
Cited
US3365103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |