×

Electric vacuum cleaning and agitator motor control system

  • US 4,070,586 A
  • Filed: 08/23/1976
  • Issued: 01/24/1978
  • Est. Priority Date: 08/23/1976
  • Status: Expired due to Term
First Claim
Patent Images

1. A control system for selectively energizing and supplying power to a central and a remote electrical load device interconnected by a single conductor pair from a common control located at the remote device comprising:

  • a. power means at the location of the central electrical device for providing electrical power to said central device and to the conductor pair interconnecting said central device with the remote electrical device;

    b. first switching means interposed between said power means and said central device for controlling the flow of electrical current to said central device;

    c. second switching means at the location of said remote device and interposed in one conductor of said pair for controlling the flow of electrical current to said remote device;

    d. detecting means at the location of said central device and interposed in one conductor of said pair of detecting an electrical current flow through said conductor pair; and

    e. actuating means responsive to said detecting means and coupled to said first switching means for actuating said first switching means in response to a current flow detected by said detecting means.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×