Patent US3853190A successfully refreshed from Google Patents.
US3853190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for weighing draughts of bulk material
Assignee: Individual
•
Filing: 1973-05-04
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Granted: 1974-12-10
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Expires: 1993-05-04
Abstract
Abstract A weighing apparatus that is particularly advantageous for weighing draughts of bulk particulate material utilizes a rapidly, horizontally reciprocating lower gate on a hopper which is actuated when the accumulated load in the hopper reaches the desired weight. The lower gate is opened for at least a sufficient time to permit the load to be delivered. The feed to the hopper need not be terminated during the delivery, and it is desirable to employ continuous feed in order to avoid time lags in starting and stopping the feed supply which may increase the time required for delivery of each draught.
Inventors
- 👤 M Delesdernier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:38
CPC Classifications
G; G01; G01G; G01G13/00; G01G13/16; G01G13/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
131 words
An apparatus for weighing successive draughts of particulate material comprising a scale means having a fulcrumed weigh beam counterweighted to balance a predetermined weight of particulate material fed to said scale means, said scale means having a hopper vertically supported from the fulcrumed weigh beam to receive said particulate material, said hopper having an opening in its bottom; a horizontally reciprocating gate adapted to close the bottom of the hopper; a means to horizontally move the gate to open or close the bottom of the hopper; and a horizontallyacting dampening means affixed to a fixed member and hopper having an effective action in a horizontal direction parallel to the direction of reciprocation of the gate to provide dampening of horizontal movement of the hopper caused by the reciprocation of the gate.
Claim 2
Independent Claim
131 words
An apparatus for weighing successive draughts of particulate material comprising a scale means having a fulcrumed weigh beam counterweighted to balance a predetermined weight of particulate material fed to said scale means, said scale means having a hopper vertically supported from the fulcrumed weigh beam to receive said particulate material, said hopper having an opening in its bottom; a horizontally reciprocating gate adapted to close the bottom of the hopper; a means to horizontally move the gate to open or close the bottom of the hopper; and a horizontallyacting dampening means affixed to a fixed member and hopper having an effective action in a horizontal direction parallel to the direction of reciprocation of the gate to provide dampening of horizontal movement of the hopper caused by the reciprocation of the gate.
Claim 3
Dependent Claim
62 words
The apparatus of claim 1 having a timing means in communication with the means to horizontally open the gate whereby the timing means maintains the gate in the open position for a predetermined interval of time after activation of said means to horizontally move the gate and provide a signal to said means to horizontally move the gate to a closed position.
Claim 4
Dependent Claim
56 words
The apparatus of claim 1 having a sensing means responsive to the balancing movement of the weigh beam which provides a signal when the predetermined weight of particulate material has been fed to the scale to said means to horizontally move the gate to activate said means to horizontally move the gate to the open position.
Claim 5
Independent Claim
278 words
An apparatus for weighing successive draughts of particulate material comprising a scale means having a fulcrumed weigh beam counterweighted to balance a predetermined weight of particulate material fed to said scale means, said scale means having a hopper vertically supported from the fulcrumed weigh beam to receive said particulate material, said hopper having an opening in its bottom; a horizontally reciprocating gate adapted to close the bottom of the hopper; a means to horizontally move the gate to open or close the bottom of the hopper; a sensing means responsive to the balancing movement of the weigh beam which provides a signal when the predetermined weight of particulate material has been fed to the scale to said means to horizontally move the gate to activate said means to horizontally move the gate to open position; a timing means in communication with the means to horizontally open the gate whereby the timing means maintains the gate in open position for a predetermined interval of time after activation of said means to horizontally move the gate and provide a signal to said means to horizontally move the gate to a closed position; a feed supply means adapted to deliver a continuous stream of particulate material at all times directly to the hopper of said scale means whereby said stream of particles is collected in said hopper at a uniform rate; and a horizontally-acting dampening means affixed to a fixed member and the hopper of said scale means having an effective action in a horizontal direction parallel to the direction of reciprocation of the gate to provide dampening of horizontal movement of said hopper caused by the reciprocation of the gate.
Claim 6
Independent Claim
278 words
An apparatus for weighing successive draughts of particulate material comprising a scale means having a fulcrumed weigh beam counterweighted to balance a predetermined weight of particulate material fed to said scale means, said scale means having a hopper vertically supported from the fulcrumed weigh beam to receive said particulate material, said hopper having an opening in its bottom; a horizontally reciprocating gate adapted to close the bottom of the hopper; a means to horizontally move the gate to open or close the bottom of the hopper; a sensing means responsive to the balancing movement of the weigh beam which provides a signal when the predetermined weight of particulate material has been fed to the scale to said means to horizontally move the gate to activate said means to horizontally move the gate to open position; a timing means in communication with the means to horizontally open the gate whereby the timing means maintains the gate in open position for a predetermined interval of time after activation of said means to horizontally move the gate and provide a signal to said means to horizontally move the gate to a closed position; a feed supply means adapted to deliver a continuous stream of particulate material at all times directly to the hopper of said scale means whereby said stream of particles is collected in said hopper at a uniform rate; and a horizontally-acting dampening means affixed to a fixed member and the hopper of said scale means having an effective action in a horizontal direction parallel to the direction of reciprocation of the gate to provide dampening of horizontal movement of said hopper caused by the reciprocation of the gate.
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |