Patent US3610588A successfully refreshed from Google Patents.
US3610588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt mixing and paving apparatus
Assignee: Sahuaro Petroleum and Asphalt Co
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Filing: 1969-10-27
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Granted: 1971-10-05
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Expires: 1989-10-27
Abstract
Abstract A mixer for asphalt and rubber compositions to be used for preparing topping for roadways or the like; said mixer comprising a tank having horizontally operable shaft means near the lower interior thereof and carrying a pair of opposed augers; said tank having a partition through which said shaft extends and which is located between said augers such that rotation of said shaft carrying said augers causes liquid material in said tank to be impelled toward opposite sides of said partition by respective opposed augers; said partition having openings therein to allow counterflow exchange of liquid materials from one compartment to another in said tank at opposite sides of said partition.
Inventors
- 👤 George W Diefenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:49
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1013; E01C19/104; E01C19/46
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
77 words
The invention as defined in claim 1, wherein said partition is provided with openings therein to allow counterflow of materials from each of said opposite sides of said partition into the respective areas of said tank at the other opposite side of said partition; and a heater in said tank disposed and adapted to be conductively contacted by materials moved in said tank by said augers for maintaining a desired temperature of said materials in said tank.
Claim 2
Dependent Claim
94 words
The invention as defined in claim 1, wherein packing gland and shaft bearing means is supported at each of said opposite ends of said tank and disposed to seal around said shaft and to rotatably support said shaft; each packing gland and shaft bearing means comprising a housing carried by a respective end of said tank and sealingly secured thereto; an inner end of said housing projecting into the interior of said tank; an axial thrust resisting bearing fixed on said shaft and disposed rotatably to bear against said inner end of said housing.
Claim 3
Dependent Claim
277 words
The invention as defined in claim 1, wherein packing gland and shaft bearing means is supported at each end of said tank and disposed to seal around said shaft and to rotatably support said shaft; each packing gland and shaft bearing means comprising a housing carried by a respective end of said tank and sealingly secured thereto; a portion of each of said housing projecting outwardly from a respective end of said tank; each housing having a packing gland bore of larger diameter than said shaft and surrounding said shaft; compressible packing in said packing gland bore; said housing having an enlarged flange-receiving bore of larger diameter than said packing gland bore; said housing having an enlarged flange-receiving bore of larger diameter than said packing gland bore and having a transition ledge between said flange-receiving bore and said packing gland bore; a packing gland compression sleeve surrounding said shaft and compressively engaging said packing; said sleeve having radially outwardly extending flange portion overlying said transition ledge; packing gland adjusting screws having heads and extending through said flange portion and screw threaded in said housing in said transition ledge; said housing having an open end directed away from a respective end of said tank; said enlarged flange-receiving bore extending away from said transition ledge to said open end of said housing; a shaft supporting bearing supporting said shaft and secured to said open end of said housing; said housing having openings in the sidewall thereof; said last-mentioned openings disposed radially outwardly from said heads of said packing gland adjusting screws to permit a wrench to be projected through said last-mentioned oPenings for adjusting said packing gland adjusting screws.
Claim 4
Dependent Claim
58 words
The invention as defined in claim 1, wherein a heater in said tank is disposed and adapted to be conductively contacted by materials moved in said tank by said augers for maintaining a desired temperature of materials in said tank; an insulation surrounding said tank; and a metal skin surrounding said insulation and spaced outwardly from said tank.
Claim 5
Dependent Claim
28 words
The invention as defined in claim 1, wherein access openings and covers are disposed at the top of said tank and spaced from opposite sides of said partition.
Claim 6
Dependent Claim
80 words
The invention as defined in claim 1, wherein said tank is provided with a drain valve at the bottom portion thereof; a pump communicating with said drive valve, said pump having an outlet conduit; a spray fan communicating with said outlet conduit; and valve means disposed to admit liquid materials from said pump to said spreader bar and bypass means coupled thereto for bypassing liquid materials back into said tank when materials are not being emitted from said spreader bar.
Claim 7
Dependent Claim
77 words
The invention as defined in claim 1, wherein packing gland and shaft bearing means is supported at each opposite end of said tank and disposed to seal around said shaft and to rotatably support said shaft; each packing gland and shaft bearing means comprising a housing carried by a respective end of said tank and sealingly secured thereto; and center bearing structure rotatably supporting said shaft and coupled to said partition between adjacent ends of said augers.
Claim 8
Dependent Claim
76 words
The invention as defined in claim 1, wherein packing gland and shaft bearing means is supported at each of said opposite ends of said tank and disposed to seal around said shaft and to rotatably support said shaft, each packing gland and shaft bearing means comprising a housing carried by a respective end of said tank and sealingly secured thereto; said shaft projecting beyond one of said housings; and drive means for rotatably operating said shaft.
Claim 9
Dependent Claim
101 words
The invention as defined in claim 1, wherein said packing gland and shaft bearing means is supported at each of said opposite ends of said tank and disposed to seal around said shaft and to rotatably support said shaft, each packing gland and shaft bearing means comprising a housing carried by a respective end of said tank and sealingly secured thereto, said shaft projecting outwardly beyond one of said housings and drive means for rotating said shaft; a truck having an engine and supporting said tank; said drive means being a power takeoff means driven by the engine of said truck.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |