CONTINUOUS FLOW SCALE WITH PRELIMINARY VOLUMETRIC MEASUREMENT

• US 3,690,392 A
• Filed: 02/24/1970
• Issued: 09/12/1972
• Est. Priority Date: 02/24/1970
• Status: Expired due to Term

• Current Assignee: James D. Smith
• Original Assignee: James D. Smith
• Inventors: Smith, James M.
• Primary Examiner(s): Wilkinson, Richard B.
• Assistant Examiner(s): Miller, Jr., George H.
• Application Number:
  US05/014,264
• Time in Patent Office: 931 Days
• Field of Search: 177/59,62,111,114,122,123 222/20,55,52,58,444,450,77 141/83,196 73/256
• US Class Current: 177/59
• CPC Class Codes: G01G 13/16 Means for automatically discharging weigh receptacles under control of the weighing mechanism
• CPC Class Codes: G01G 13/242 Twin weighing apparatus; weighing apparatus using single load carrier and a plurality of weigh pans coupled alternately with the load carrier; weighing apparatus with two or more alternatively used weighing devices

Abstract

Weighing feeder type apparatus which comprises two containers from one of which material is discharged while the other is charged and automatic control means responsive to the charging of a predetermined volume of material to cause the charging action to be shifted from it to the now empty container and to discharge the filled one.

Claims

1. A weighing apparatus comprising a material receiving receptacle, means for selectively delivering a material to be weighed to said receptacle, sensing means for sensing the delivery to said receptacle of a predetermined volume of material, means to terminate the delivery of, material to said receptacle when the predetermined volume of material has been delivered as sensed by the sensing means, weighing means for weighing the material receiving receptacle, and the received material in response to the predetermined volume of material being sensed by the sensing means and means to discharge the weighed material from the receptacle and reinitiate delivery of the material to be weighed to the receptacle.

2. The weighing apparatus according to claim 1 wherein the sensing means is a level sensitive switch adapted to be actuated when the material reaches a predetermined level.

3. The weighing apparatus according to claim 2 wherein the level sensitive switch is responsive to the angle of repose of the material being weighed.

4. A method of weighing free flowing material which comprises the steps of introducing a material into a receptacle, continuing the introduction of material into the receptacle until a predetermined volume of material has been received, sensing the introduction of a predetermined volume and interrupting the delivery of further material to the receptacle in response thereto, weighing the receptacle and received material, discharging the weighed material from the receptacle, and repeating the cycle.