Automatic detergent feeding control

• US 2,859,760 A
• Filed: 03/30/1955
• Issued: 11/11/1958
• Est. Priority Date: 03/30/1955
• Status: Expired due to Term

• Current Assignee: George L. Borell
• Original Assignee: George L. Borell
• Inventors: Borell, George L.
• Application Number:
  US03/497,897
• Time in Patent Office: 1,322 Days
• US Class Current: 137/93
• CPC Class Codes: A47L 15/0055 Metering or indication of used products, e.g. type or quantity of detergent, rinse aid or salt; for measuring or controlling the product concentration
• CPC Class Codes: A47L 15/241 the dishes moving in a horizontal plane
• CPC Class Codes: A47L 15/4418 in the form of liquids A47L15/4409, A47L15/4436, A47L15/4445 take precedence
• CPC Class Codes: A47L 15/449 Metering controlling devices A47L15/4229 takes precedence
• CPC Class Codes: G05D 21/02 characterised by the use of electric means
• CPC Class Codes: Y10T 137/2509 By optical or chemical property
• CPC Class Codes: Y10T 137/7306 Electrical characteristic sensing

Claims