US3986708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile batching plant
Assignee: HELTZEL Co
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Filing: 1975-06-23
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Granted: 1976-10-19
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Expires: 1995-06-23
Abstract
Abstract The present disclosure is directed to a mobile batching plant having a primary frame carrying the cement storage, batching and weighing system and a plurality of rigidly connectable and detachable secondary modular frames connected in tandem each secondary modular frame carrying a combination batch and storage hopper having dispensing gates with an endless aggregate conveyor beneath the hopper gates. One sand and from one to three aggregate modules can be carried without affecting plant width. A fifth wheel for connection to a tractor is carried by the primary frame and a transport wheel assembly is connected to the last modular frame to render the entire plant transportable over the highway. The hoppers carried by the modular secondary frames are loadable by a small front end loader without the need of ramps because of their low profile. The cement batcher and discharge screw are supported on a scale system to weigh precisely the cement dispensed and each hopper carried by the modular secondary frame is supported by a scale system to weigh exactly the amount of sand and aggregates dispensed upon the endless aggregate conveyor. A pivotal cement storage bin is connected to the cement module frame in a vertical position to feed cement to the cement batching and weighing system. In travel position the cement bin is pivoted to a horizontal position and supported by the aggregate modular frame.
Inventors
- 👤 Robert E. Heltzel
- 👤 Richard K. Brugler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:05
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/0481; B28C7/0486; B28C7/049; G; G01; G01G; G01G19/00; G01G19/22; G01G19/34
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
A mobile batching plant comprising: a. a primary frame, b. a plurality of separable modular secondary frames connected in tandem draft alignment with said primary frame, c. a cement modular frame, hopper, storage; weighing and conveying means pivotally mounted on top of said primary frame, d. an aggregate hopper and dispensing gate therefor carried by each separable modular secondary frame, e. a first aggregate conveyor means carried by said modular secondary frames and positioned beneath the dispensing gates of each aggregate hopper, f. a second aggregate conveyor means carried by said primary frame and positioned beneath said cement conveying means at one end and positioned to receive aggregate from said first aggregate conveyor means, g. mixing means carried by said second aggregate conveyor frame positioned to receive cement from said cement conveyor and aggregate from said second aggregate conveyor, and h. a fifth wheel draft connection carried by said primary frame and transport wheel means connected to the rear of the last of said separable modular secondary frames for moving the plant over the highway from site to site.
Claim 2
Dependent Claim
179 words
A mobile batching plant comprising: a. a primary frame, b. a plurality of separable modular secondary frames connected in tandem draft alignment with said primary frame, c. a cement modular frame, hopper, storage; weighing and conveying means pivotally mounted on top of said primary frame, d. an aggregate hopper and dispensing gate therefor carried by each separable modular secondary frame, e. a first aggregate conveyor means carried by said modular secondary frames and positioned beneath the dispensing gates of each aggregate hopper, f. a second aggregate conveyor means carried by said primary frame and positioned beneath said cement conveying means at one end and positioned to receive aggregate from said first aggregate conveyor means, g. mixing means carried by said second aggregate conveyor frame positioned to receive cement from said cement conveyor and aggregate from said second aggregate conveyor, and h. a fifth wheel draft connection carried by said primary frame and transport wheel means connected to the rear of the last of said separable modular secondary frames for moving the plant over the highway from site to site.
Claim 3
Dependent Claim
101 words
A mobile batching plant as claimed in claim 1 wherein said cement storage weighing and conveying means comprises support means mountable on said primary frame, cement storage means pivotally connected to said support means movable between an erect operating position and a horizontal transport position, a cement weigh hopper carried by said support means positioned to be charged from said cement storage means, and enclosed screw conveyor means carried by said weigh hopper positioned to receive cement from said weigh hopper and to convey it to the mixing means carried by said primary frame vertically above said second aggregate conveyor means.
Claim 4
Dependent Claim
35 words
A mobile batching plant as claimed in claim 1 wherein said plurality of modular secondary frames are rigidly detachably connected in tandem for addition and subtraction of plural sand and aggregates to meet job requirements.
Claim 5
Dependent Claim
50 words
A mobile batching plant as claimed in claim 1 wherein said first aggregate conveyor means is an endless belt mounted to ride upon rollers supported on said modular secondary frames, the upper run of said belt passing beneath the dispensing gates for each hopper carried by a modular secondary frame.
Claim 6
Dependent Claim
69 words
A mobile batching plant as claimed in claim 1 wherein said second aggregate conveyor means comprises a first support means carried by said primary frame, a second support means pivoted to said first support means, an endless belt carried by said first and second support means, drive means for driving said endless belt and drive connecting means between said first aggregate conveyor means and said second aggregate conveyor means.
Claim 7
Dependent Claim
32 words
A mobile batching plant as claimed in claim 5 wherein said second support means of said second aggregate conveyor means is movable between a lowered conveying position and a raised transport position.
Claim 8
Dependent Claim
103 words
A mobile batching plant as claimed in claim 1 further comprising weight sensing means connected to be actuated by each hopper carried by each modular secondary frame, weight sensing means connected to be actuated by said cement weighing and conveying means and carried by said primary frame, a control panel connected to said weight sensing means to provide visual indication of the amount of cement and aggregate delivered to the mixing means, and control means connected to actuate said cement screw conveyo and said conveyor bin gates responsive to visual indication on said control panel responsive to the formulation of the batch mix.
Claim 9
Dependent Claim
115 words
A mobile batching plant, as claimed in claim 7, further comprising volumetric sensing means connected to be actuated by first aggregate conveyor means carried by said modular frames and positioned beneath the dispensing means of each aggregate hopper, volumetric sensing means connected to be activated by cement conveying means and carried by said forward frame, a control panel connected to said volumetric sensing means to provide a count system indicative of weight of the amount of cement and aggregate delivered to the mixing means and control means connected to activate said cement screw conveyor and said aggregate dispensing means responsive to predetermined count on said control panel responsive to the formulation of the batch mix.
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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |