Airflow-electric coupling for vacuum cleaner

• US 3,339,168 A
• Filed: 01/04/1965
• Issued: 08/29/1967
• Est. Priority Date: 01/04/1965
• Status: Expired due to Term

• Current Assignee: John J. Moughty, Michael E. Belicka, Robert C. Lampe
• Original Assignee: John J. Moughty, Michael E. Belicka, Robert C. Lampe
• Inventors: Belicka, Michael E., Lampe, Robert C., Moughty, John J.
• Application Number:
  US04/423,269
• Time in Patent Office: 967 Days
• US Class Current: 439/22
• CPC Class Codes: A47L 9/246 with electrical connectors
• CPC Class Codes: H01R 13/005 Electrical coupling combined with fluidic coupling

Claims

1. IN A VACUUM CLEANER HAVING A SUCTION HOSE CARRYING ELECTRICAL CONDUCTOR MEANS AND A TANK UNIT HAVING A COVER INCLUDING A SUCTION INLET TO THE TANK UNIT;

STATIONARY ELECTRICAL CONTACT MEANS LOCATED IN THE REGION OF SAID INLET;

AN ANNULAR RING OF DIELECTRIC MATERIAL ROTATABLE ABOUT ITS CENTRAL AXIS AND INCLUDING AT LEAST ONE KEYWARD THEREIN, SAID ANNULAR RING BEING ARRANGED CONCENTRICALLY WITH SAID INLET;

A SPRING RESTRAINING SAID ROTATABLE ANNULAR RING SO THAT IT NORMALLY COVERS SAID STATIONARY CONTACT MEANS;

MEANS ON SAID COVER FORMING ANOTHER KEYWAY WHICH IS STATIONARY RELATIVE TO THE ROTATABLE ANNULAR RING'"'"''"'"'S KEYWAY AND IN REGISTRATION WITH THE ANNULAR RING'"'"''"'"'S KEYWAY WHEN SAID ANNULAR RING IS RESTRAINED IN THE AFORESAID NORMAL POSITION;

A HOLLOW CYLINDRICAL BODY OF DIELECTRIC MATERIAL COUPLED TO AND ENCOMPASSING ONE END OF THE SUCTION HOSE, SAID HOLLOW CYLINDRICAL BODY INCLUDING AT LEAST ONE KEY MEMBER THEREON;

ELECTRICAL CONTACT MEANS MOUNTED ON SAID KEY MEMBER AND ELECTRICALLY CONNECTED WITH THE HOSE'"'"''"'"'S CONDUCTOR MEANS;

AN OUTWARDLY PROJECTING SPRING-RESTRAINED MOVABLE LATCH MOUNTED ON SAID HOLLOW CYLINDRICAL BODY AND ANGULARLY SPACED APART FROM SAID KEY MEMBER, SAID PROJECTING LATCH BEING MOVABLE INTO A FLUSH POSITION WITH SAID CYLINDRICAL BODY TO PERMIT SAID HOLLOW CYLINDRICAL BODY TO BE INSERTED COAXIALLY WITHIN SAID ROTATABLE ANNUALAR RING AS SAID KEY MMEMBER PASSES THROUGH SAID COVER'"'"''"'"'S KEYWAY AND INTO SAID ANNULAR RING'"'"''"'"'S REGISTERING KEYWAY, SAID CYLINDRICAL BODY BEING ROTATABLE WHEREBY SAID KEY MEMBER, BEING IN SAID RING'"'"''"'"'S KEYWAY, ROTATES SAID ANNULAR RING UNTIL SAID KEY MEMBER'"'"''"'"'S CONTACT MEANS COME INTO CONTACT WITH SAID STATIONARY CONTACT MEANS AND SAID FLUSH LATCH IS ADJACENT SAID COVER'"'"''"'"'S KEYWAY AND IS AGAIN PROJECTED OUTWARDLY BY SPRING RESTRAINT INTO SAID COVER'"'"''"'"'S KEYWAY TO LOCK SAID CYLINDRICAL BODY IN THE POSITION TO WHICH IT HAS BEEN ROTATED.