US4157769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On-site aggregate measure
Assignee: Individual
•
Filing: 1978-05-16
•
Granted: 1979-06-12
•
Expires: 1998-05-16
Abstract
Abstract An on-site aggregate measure having a hopper with at least one fill level indicia representative of a predetermined measure of aggregate and including at least one opening for the introduction and emptying of aggregate together with means for emptying a fill of aggregate in fractional parts.
Inventors
- 👤 Blaine F. Radel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:34
CPC Classifications
G; G01; G01F; G01F19/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
114 words
An on-site aggregate measure comprising: in combination, a selectively moveable self-supported hopper guided on support means for moving the hopper between a position for receiving aggregate from an aggregate source and another position for gravity discharging the aggregate into a mixer spout by selectively moving at least a portion of said hopper and wherein said hopper includes at least one fill level indicia representative of a hopper fill of a predetermined measure, includes at least one opening for the introduction and emptying of aggregate, and includes fractional part emptying means for emptying a said predetermined measure of aggregate in fractional parts such as two parts each approximately equal to one-half of the predetermined measure.
Claim 2
Dependent Claim
114 words
An on-site aggregate measure comprising: in combination, a selectively moveable self-supported hopper guided on support means for moving the hopper between a position for receiving aggregate from an aggregate source and another position for gravity discharging the aggregate into a mixer spout by selectively moving at least a portion of said hopper and wherein said hopper includes at least one fill level indicia representative of a hopper fill of a predetermined measure, includes at least one opening for the introduction and emptying of aggregate, and includes fractional part emptying means for emptying a said predetermined measure of aggregate in fractional parts such as two parts each approximately equal to one-half of the predetermined measure.
Claim 3
Dependent Claim
27 words
An on-site aggregate measure according to claim 1 wherein said fractional part emptying means comprises a gate for selectively opening and closing a said aggregate emptying opening.
Claim 4
Dependent Claim
68 words
An on-site aggregate measure according to claim 2 wherein said gate comprises a slide in the bottom of said hopper moveable between an open and a closed position to empty aggregate from said hopper when said slide is in the open position, and which slide is adapted for closure with a load applied to permit closing of the gate after emptying only a fractional part of a measure.
Claim 5
Dependent Claim
32 words
An on-site aggregate measure according to claim 2 wherein said gate includes a series of graduated opening positions each of which corresponds to gravity discharge of a fractional part of a measure.
Claim 6
Dependent Claim
27 words
An on-site aggregate measure according to claim 1 wherein said means for emptying comprises pivot means for pivoting said hopper between aggregate retaining and aggregate emptying positions.
Claim 7
Dependent Claim
50 words
An on-site aggregate measure according to claim 5 wherein said hopper is open topped and said pivot means includes a first stop for limiting pivotal movement of said hopper at a position corresponding to discharge of a fractional part of a said measure and includes means for by-passing said stop.
Claim 8
Dependent Claim
16 words
An on-site aggregate measure according to claim 1 further comprising a stand for supporting said hopper.
Claim 9
Dependent Claim
15 words
An on-site aggregate measure according to claim 7 wherein said stand includes adjustable length legs.
Claim 10
Dependent Claim
22 words
An on-site aggregate measure according to claim 8 wherein said stand includes means for moving said hopper between fill and empty positions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |