Cordless electric device and recharging stand therefor

• US 3,183,891 A
• Filed: 05/07/1963
• Issued: 05/18/1965
• Est. Priority Date: 05/07/1963
• Status: Expired due to Term

• Current Assignee: Pierce Business Products Incorporated
• Original Assignee: Clyde E. Macdonald
• Inventors: Macdonald, Clyde E.
• Application Number:
  US04/278,618
• Time in Patent Office: 742 Days
• US Class Current: 15/3.53
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction

Claims

1. A RECHARGING STAND FOR AUTOMATICALLY KEEPING THE BATTERY OF A BATTERY-POWERED ERASER CHARGED TO ITS PEAK CONDITION DESPITE FREQUENT USE, SAID STAND COMPRISING A BASE PORTION, A BATTERY RECHARGING ARRANGEMENT DISPOSED IN SAID STAND, AND AN ERASER-SUPPORTING UPPER PORTION CONTOURED TO EASILY RECEIVE A BATTERY-POWERED ERASER AND RETAIN SAME IN A PRE-ESTABLISHED POSITION, SAID STAND HAVING UPSTANDING SIDEWALLS EXTENDING UPWARDLY FROM SAID BASE PORTION AND DEFINING THEREBETWEEN SAID ERASER-SUPPORTING UPPER PORTION, A SPECIFIC OPENING IN ONE OF SAID SIDEWALLS INTO WHICH AN OPERATIVE PORTION OF SAID ERASER MAY BE ACCOMMODATED, THUS ESTABLISHING THE UNIQUENESS OF SAID PREESTABLISHED POSITION FOR SAID ERASER, AND A PLURALITY OF ELECTRIC CONTACTS DISPOSED UPON SAID ERASER-SUPPORTING UPPER PORTION AND ELECTRICALLY CONNECTED WITH SAID BATTERY RECHARGING ARRANGEMENT, WHEREBY WHEN A BATTERY-POWERED ERASER HAVING ELECTRIC CONTACTS ON ITS LOWER SURFACE IS PLACED UPON SAID ERASER-SUPPORTING UPPER PORTION, THE ELECTRIC CONTACTS DISPOSED UPON SAID UPPER PORTION OF SAID STAND ENGAGE SAID CONTACTS OF SAID BATTERY-POWERED ERASER AND BRING ABOUT A RECHARGING OPERATION.