Patent CH41798A successfully refreshed from Google Patents.
Patent US3746313A successfully refreshed from Google Patents.
US3746313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete measuring and mixing apparatus
Assignee: Individual
•
Filing: 1971-11-10
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Granted: 1973-07-17
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Expires: 1991-11-10
Abstract
Abstract A concrete-mixing machine, detachably mounted on a standard truck frame, comprising: a water tank and chambers for storing and hauling dry-mix materials; a metering slide (FIGS. 1, 3 to 4B, 8, 12 and 12A), measuring desired amounts of cement, sand and gravel at the site of concrete use; a tumbling cylinder in which measured amounts of water are added; and a conveyor system for moving the dry-mix materials to the tumbler and the wet concrete out of the machine. One of the walls of each of the cement and sand compartments of the slide is movable for variation of the volume of the compartment, thus controlling the proportions of the dry-mix materials for concrete of varying strengths. The slide is power-reciprocated between compartment-inlet ports at the bottoms of the storage chambers and compartment-outlet openings in a relatively stationary plate below the slide, the inlets to the slide compartments being open and the compartment outlets closed in one extreme reciprocated position, and the inlets being closed while the outlets are open in the other extreme position. The amount of water used is controlled by varying the stroke of a pump. The conveyor system comprises a conveyor by which concrete materials are elevated to a point well above the truck frame - preferably, as indicated in FIG. 9, to a point above seven feet in height - for example, in pouring an 8foot-high concrete wall. The belt which moves dry-mix materials from beneath the slide and chambers is protected from excessive wear by the apertured plate between it and the heavy load of drymix materials. Preferably all the moving parts of the apparatus are driven from the truck''s auxiliary transmission.
Inventors
- 👤 R Weeks
- 👤 A Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:55
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/0454; B28C7/0459; B28C9/00; B28C9/04; B28C9/0454
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
166 words
A device for mixing measured amounts of concrete, comprising: a plurality of chambers in fixed relation to each other, for storage of cement and aggregate materials, each chamber having a discharge port at its bottom; a metering-slide assembly below said chambers, having a materials-measuring slide, comprising: at least one materialsmeasuring compartment associated with each of the said chambers; means for supporting said slide for reciprocating movement; and means for reciprocating the slide; a relatively stationary, apertured plate beneath said slide, having solid portions that close the bottom of each of said compartments in one extreme position of the reciprocable slide, and having openings, one of which is beneath each of said compartments in the opposite extreme position of the slide; each of the said compartments of the slide in said first-named extreme position being below one of said discharge ports; means for mixing the measured materials from said compartments and adding water to them; and means for moving the wet concrete out of said mixing means.
Claim 2
Independent Claim
166 words
A device for mixing measured amounts of concrete, comprising: a plurality of chambers in fixed relation to each other, for storage of cement and aggregate materials, each chamber having a discharge port at its bottom; a metering-slide assembly below said chambers, having a materials-measuring slide, comprising: at least one materialsmeasuring compartment associated with each of the said chambers; means for supporting said slide for reciprocating movement; and means for reciprocating the slide; a relatively stationary, apertured plate beneath said slide, having solid portions that close the bottom of each of said compartments in one extreme position of the reciprocable slide, and having openings, one of which is beneath each of said compartments in the opposite extreme position of the slide; each of the said compartments of the slide in said first-named extreme position being below one of said discharge ports; means for mixing the measured materials from said compartments and adding water to them; and means for moving the wet concrete out of said mixing means.
Claim 3
Dependent Claim
22 words
A device as set forth in claim 1, comprising means for varying the volume of at least one of said measuring compartments.
Claim 4
Dependent Claim
29 words
A device as set forth in claim 1, in which said compartments comprise side walls, at least one of which is movable to adjust the volume of its compartment.
Claim 5
Dependent Claim
33 words
A device as set forth in claim 1, in which said cement is calcareous, and the device comprises means for supplying measured amounts of water to the said means for mixing the materials.
Claim 6
Dependent Claim
42 words
A device as set forth in claim 4 in which: said water-supplying means comprises a variable-stroke pump; and the device comprises means for simultaneous actuation of the said pump and said means for reciprocating the slide in predetermined relation of their speeds.
Claim 7
Dependent Claim
16 words
A device as set forth in claim 5, in which said simultaneous-actuation means comprises reduction gearing.
Claim 8
Independent Claim
127 words
A device for mixing concrete, comprising: a plurality of chambers, in fixed relation to each other, for storage of cement and aggregate materials, each chamber having a discharge port at its bottom; a device for tumbling and mixing said materials; reciprocable means for alternately opening and closing said ports, allowing gravity discharge of the cement and aggregate materials; means comprising a conveyor belt, positioned below said chambers, for transferring said gravity-discharged materials to said tumbling device; means, between the said conveyor belt and the said discharge ports and bottoms of said chambers, comprising an apertured plate, for preventing a heavy load in said chambers from bearing on and causing excessive wear of said belt; and power means for driving said reciprocable means, tumbling means and conveyor belt.
Claim 9
Independent Claim
127 words
A device for mixing concrete, comprising: a plurality of chambers, in fixed relation to each other, for storage of cement and aggregate materials, each chamber having a discharge port at its bottom; a device for tumbling and mixing said materials; reciprocable means for alternately opening and closing said ports, allowing gravity discharge of the cement and aggregate materials; means comprising a conveyor belt, positioned below said chambers, for transferring said gravity-discharged materials to said tumbling device; means, between the said conveyor belt and the said discharge ports and bottoms of said chambers, comprising an apertured plate, for preventing a heavy load in said chambers from bearing on and causing excessive wear of said belt; and power means for driving said reciprocable means, tumbling means and conveyor belt.
Claim 10
Dependent Claim
50 words
A device as set forth in claim 7, in which said means berween the conveyor belt and said discharge ports comprises a reciprocating slide, adapted to open said discharge ports in one extreme position of its reciprocation and to open said ports in the other extreme position of its reciprocation.
Claim 11
Dependent Claim
47 words
A device as set forth in claim 7, in which: said slide comprises compartments for measuring volumes of said materials; the said apertured plate is fixed relative to said slidE; and the said materials, after measurement, being discharged thru openings in said apertured plate onto said belt.
Claim 12
Dependent Claim
30 words
A device as set forth in claim 9, comprising means for varying the proportions of the volumes of said materials that exit from said slide during each of its reciprocations.
Claim 13
Dependent Claim
24 words
A device as set forth in claim 10, in which said proportions-varying means comprises at least one movable wall in one of said compartments.
Claim 14
Dependent Claim
30 words
A device as set forth in claim 7, in which said cement is calcareous, comprising means for supplying measured amounts of water to the said means for mixing the materials.
Claim 15
Dependent Claim
17 words
A device as set forth in claim 12, in which said water-supplying means comprises a variable-stroke pump.
Claim 16
Independent Claim
151 words
A device for mixing and dispensing concrete, comprising: a plurality of chambers for storage of cement and aggregate materials; at least one measuring compartment associated with each of said chambers, for receiving and temporarily holding a measured quantity of one of said materials, having a volume that is substantially less than that of its larger associated chamber, having a closable inlet connected with its said associated chamber, and having a closable outlet for gravity-influenced discharge of said measured quantity of one of said materials; at least one of said compartments comprising means for varying its volume; means for closing each of said inlets after entry of said measurable quantity of materials and for opening each of said outlets for gravity discharge of one of the measured amounts of materials; means for mixing said measured amounts of materials; and means for moving the mixed amounts of said materials out of said device.
Claim 17
Independent Claim
151 words
A device for mixing and dispensing concrete, comprising: a plurality of chambers for storage of cement and aggregate materials; at least one measuring compartment associated with each of said chambers, for receiving and temporarily holding a measured quantity of one of said materials, having a volume that is substantially less than that of its larger associated chamber, having a closable inlet connected with its said associated chamber, and having a closable outlet for gravity-influenced discharge of said measured quantity of one of said materials; at least one of said compartments comprising means for varying its volume; means for closing each of said inlets after entry of said measurable quantity of materials and for opening each of said outlets for gravity discharge of one of the measured amounts of materials; means for mixing said measured amounts of materials; and means for moving the mixed amounts of said materials out of said device.
Claim 18
Dependent Claim
21 words
A device as set forth in claim 14, comprising means for controllably varying the volume of each of two said compartments.
Claim 19
Dependent Claim
34 words
A device as set forth in claim 14, in which said volume-varying means comprises a compartment side wall, movable from a position providing larger compartment volume to a position providing a smaller compartment volume.
Claim 20
Independent Claim
191 words
A device for mixing and dispensing concrete, comprising: a plurality of chambers for storage of cement and aggregate materials; a reciprocable slide having side walls and openings in its bottom, comprising at least one measuring compartment associated with each of said chambers, for receiving and temporarily holding a measured quantity of one of said materials, having a volume that is substantially less than that of its larger associated chamber, having a closable inlet connected with its said associated chamber, and having a closable outlet for gravity-influenced discharge of said measured quantity of one of said materials; a materials-retaining plate, below said side walls; means for closing one of said inlets after entry of said measurable quantity of materials and for opening each of said outlets for gravity discharge of one of the measured amounts of materials; the said inlets being ports between said chambers and said compartments in one of the extreme reciprocated positions of said slide, and the said closable outlets comprising openings in the said materials-retaining plate; means for mixing said measured amounts of materials; and means for moving the mixed amounts of said materials out of said device.
Claim 21
Independent Claim
191 words
A device for mixing and dispensing concrete, comprising: a plurality of chambers for storage of cement and aggregate materials; a reciprocable slide having side walls and openings in its bottom, comprising at least one measuring compartment associated with each of said chambers, for receiving and temporarily holding a measured quantity of one of said materials, having a volume that is substantially less than that of its larger associated chamber, having a closable inlet connected with its said associated chamber, and having a closable outlet for gravity-influenced discharge of said measured quantity of one of said materials; a materials-retaining plate, below said side walls; means for closing one of said inlets after entry of said measurable quantity of materials and for opening each of said outlets for gravity discharge of one of the measured amounts of materials; the said inlets being ports between said chambers and said compartments in one of the extreme reciprocated positions of said slide, and the said closable outlets comprising openings in the said materials-retaining plate; means for mixing said measured amounts of materials; and means for moving the mixed amounts of said materials out of said device.
Claim 22
Dependent Claim
44 words
A device as set forth in claim 17 in which said slide is rack-like and each of the said openings at its bottom has a cross-sectional area at least as large as that of the space between bottom edges of the said side walls.
Claim 23
Dependent Claim
48 words
A device as set forth in claim 17, in which the said cement comprises Portland cement, and the said slide comprises a plurality of said compartments for measuring aggregate; all the compartments being in fixed relation to each other; and each having said side walls, inlet and outlet.
Claim 24
Dependent Claim
56 words
A device as set forth in claim 19, in which said compartments for measuring aggregate comprise at least one for measuring fine aggregate and at least one for measuring cOarse aggregate; and the said device comprises means for blocking the outlet of said coarse-aggregate-measuring compartment, thus blocking entry of coarse aggregate into the mixture of materials.
Claim 25
Independent Claim
200 words
A device for mixing and dispensing concrete, comprising: a plurality of chambers for storage of Portland cement and aggregate materials; a reciprocating slide, comprising measuring compartments having side walls and bottom edges that are free of fixed attachment to any other materials-retaining member, providing spaces for outlet of materials from the compartments, the said slide including at least one measuring compartment associated with each of said chambers, for receiving and temporarily holding a measured quantity of one of said materials, having a volume that is substantially less than that of its associated chamber, having a closable inlet connected with its said associated chamber, and having a closable outlet for gravity-influenced discharge of said measured quantity of one of said materials; a relatively stationary materials-retaining member, below said reciprocating slide, having ports that come below said spaces during reciprocation of the slide; means, connected to said slide, for closing each of said inlets after entry of said measurable quantity of materials and for opening each of said outlets for gravity discharge of one of the measured amounts of materials; means for mixing said measured amounts of materials; and means for moving the mixed amounts of said materials out of said device.
Claim 26
Independent Claim
200 words
A device for mixing and dispensing concrete, comprising: a plurality of chambers for storage of Portland cement and aggregate materials; a reciprocating slide, comprising measuring compartments having side walls and bottom edges that are free of fixed attachment to any other materials-retaining member, providing spaces for outlet of materials from the compartments, the said slide including at least one measuring compartment associated with each of said chambers, for receiving and temporarily holding a measured quantity of one of said materials, having a volume that is substantially less than that of its associated chamber, having a closable inlet connected with its said associated chamber, and having a closable outlet for gravity-influenced discharge of said measured quantity of one of said materials; a relatively stationary materials-retaining member, below said reciprocating slide, having ports that come below said spaces during reciprocation of the slide; means, connected to said slide, for closing each of said inlets after entry of said measurable quantity of materials and for opening each of said outlets for gravity discharge of one of the measured amounts of materials; means for mixing said measured amounts of materials; and means for moving the mixed amounts of said materials out of said device.
Claim 27
Independent Claim
200 words
A device for mixing and dispensing concrete, comprising: a plurality of chambers for storage of calcareous cement and aggregate materials; a slide, comprising a plurality of measuring compartments having fixed relation to each other, at least one compartment being for measurement of a volume of fine aggregate and at least one compartment for volume measurement of coarse aggregate; at least one of said compartments being associated with each of said chambers, for receiving and temporarily holding a measured quantity of one of said materials, having a volume that is substantially less than that of its associated larger chamber, having a closable inlet connected with its said associated chamber, and having a closable outlet for gravity-influenced discharge of said measured quantity of one of said materials; means for closing each of said inlets after entry of said measurable quantity of materials and for opening each of said outlets for gravity discharge of one of the measured amounts of materials; means for blocking the outlet of said coarse-aggregate-measuring compartment, thus barring entry of coarse aggregate into the mixture of materials; means for mixing said measured amounts of materials; and means for moving the mixed amounts of said materials out of said device.
Claim 28
Independent Claim
200 words
A device for mixing and dispensing concrete, comprising: a plurality of chambers for storage of calcareous cement and aggregate materials; a slide, comprising a plurality of measuring compartments having fixed relation to each other, at least one compartment being for measurement of a volume of fine aggregate and at least one compartment for volume measurement of coarse aggregate; at least one of said compartments being associated with each of said chambers, for receiving and temporarily holding a measured quantity of one of said materials, having a volume that is substantially less than that of its associated larger chamber, having a closable inlet connected with its said associated chamber, and having a closable outlet for gravity-influenced discharge of said measured quantity of one of said materials; means for closing each of said inlets after entry of said measurable quantity of materials and for opening each of said outlets for gravity discharge of one of the measured amounts of materials; means for blocking the outlet of said coarse-aggregate-measuring compartment, thus barring entry of coarse aggregate into the mixture of materials; means for mixing said measured amounts of materials; and means for moving the mixed amounts of said materials out of said device.
Claim 29
Dependent Claim
254 words
Apparatus for mixing cement and aggregate, adapted to be carried by a vehicle, comprising: a plurality of juxtaposed chambers having side walls, and means for fastening said chambers to a vehicle with the said side walls intersecting a transverse plane of the vehicle; one of the said chambers being adapted to store cement, another to store fine aggregate, and each of the chambers having at least one hole in its bottom for flow of material from the chamber; means comprising a slide below said chambers for measuring and moving meterials, adapted for reciprocative movement relatively to the chambers, including a plurality of compartments having upper openings that come below said holes in one reciprocated position of the slide, receiving materials thru and from said holes; and means providing for discharge of the materials downward from said compartments in another reciprocated position of the slide; a conveyor below said slide, mounted for movement of materials at an angle to said transverse plane, receiving measured amounts of said materials from said compartments and transferring them to a forward location; means for transporting aNd mixing said measured materials, moving them from said forward location to rearward location at a rear-end portion of said apparatus, comprising a conveyor, adjacent to sidewall portions of said chambers and slide; liquid-supplying means, flow-connected to said transporting and mixing means, for supplying liquid to said measured materials; and mixture-supplying means at said rear-end portion for receiving wet-mix materials from said transporting and mixing means and supplying the materials to points of use.
Claim 30
Dependent Claim
254 words
Apparatus for mixing cement and aggregate, adapted to be carried by a vehicle, comprising: a plurality of juxtaposed chambers having side walls, and means for fastening said chambers to a vehicle with the said side walls intersecting a transverse plane of the vehicle; one of the said chambers being adapted to store cement, another to store fine aggregate, and each of the chambers having at least one hole in its bottom for flow of material from the chamber; means comprising a slide below said chambers for measuring and moving meterials, adapted for reciprocative movement relatively to the chambers, including a plurality of compartments having upper openings that come below said holes in one reciprocated position of the slide, receiving materials thru and from said holes; and means providing for discharge of the materials downward from said compartments in another reciprocated position of the slide; a conveyor below said slide, mounted for movement of materials at an angle to said transverse plane, receiving measured amounts of said materials from said compartments and transferring them to a forward location; means for transporting aNd mixing said measured materials, moving them from said forward location to rearward location at a rear-end portion of said apparatus, comprising a conveyor, adjacent to sidewall portions of said chambers and slide; liquid-supplying means, flow-connected to said transporting and mixing means, for supplying liquid to said measured materials; and mixture-supplying means at said rear-end portion for receiving wet-mix materials from said transporting and mixing means and supplying the materials to points of use.
Claim 31
Dependent Claim
46 words
Apparatus as set forth in claim 23, in which said liquid is water, and said mixture-supplying means comprises: a conveyor for moving said wet-mix materials to a selected elevation having a maximum height of at least eight feet above ground level; and a pivotal dispensing channel.
Claim 32
Dependent Claim
22 words
Apparatus as set forth in claim 23, comprising three of said juxtaposed chambers, one of which is adapted to store coarse aggregate.
Claim 33
Dependent Claim
16 words
Apparatus as set forth in claim 23, in which said liquid-supplying means comprises a variable-stroke pump.
Claim 34
Dependent Claim
36 words
Apparatus as set forth in claim 23, in which said transporting and mixing means comprises a cross-feed conveyor, for receiving materials at said forward location and moving them transversely of the vehicle to said last-named conveyor.
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |