Automatic dustpan member for central vacuum cleaning system

• US 5,408,721 A
• Filed: 12/27/1993
• Issued: 04/25/1995
• Est. Priority Date: 12/27/1993
• Status: Expired due to Fees

• Current Assignee: Buzz L. Siler, James C. Wall
• Original Assignee: Buzz L. Siler, James C. Wall
• Inventors: Wall, James C., Siler, Buzz L.
• Primary Examiner(s): Moore, Christopher K.
• Application Number:
  US08/174,194
• Time in Patent Office: 484 Days
• Field of Search: 15/301, 15/310, 15/314, 15/339
• US Class Current: 15/301
• CPC Class Codes: A47L 5/38 Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected

Abstract

An automatic dustpan apparatus for central vacuum cleaning systems has a hollow body member that is configured for built-in mounting under cabinetry or in walls adjacent a floor surface, and connection to a conventional central vacuum cleaning system whereby debris on a floor surface may simply be swept to the vicinity of the automatic dustpan and hence into the central vacuum cleaning system where it is discarded. A valve within the dustpan body automatically closes when the dustpan is not in use to permit the other receptacles in the central vacuum cleaning system to function and provision is made to assure against the energizing of the central vacuum cleaning motor when the automatic dustpan is to be used until after the valve of the dustpan has been opened, in order to prevent harmful overloading and other undue damaging strains on the motor during its initial startup and operation.

Claims

1. An automatic dustpan apparatus configured for attachment to and operation with a central vacuum cleaning system having a plurality or separate, independently operable vacuum receptacles connected to a common vacuum cleaner motor by a duct work of suction-providing piping and whereby the activation and de-activation of the vacuum cleaner motor is controlled independently at each receptacle location in the system, the automatic dustpan apparatus comprising:

a) a body member having a debris-collecting chamber interconnecting a debris-receiving inlet opening on the body member and a suction-supplying outlet opening on the body member, the outlet opening configured for connection to a suction-providing pipe of a central vacuum cleaning system, the body member further configured for stationary mounting to a supporting structure to position the inlet opening of the body member in registry with a surface to be swept with said suction-supplying outlet opening of the body member disposed above the plane of a surface in registry with said inlet opening for connection of the outlet opening thereabove to a suction-providing pipe,

b) valve means on the body member for selectively opening and closing the outlet opening to the passage of air therethrough during operation of the vacuum cleaner motor of the central vacuum cleaning system,

c) valve-operating means on the body member for selectively operating the valve means to open and close the outlet opening, and

d) a vacuum cleaner motor control switch to activate and de-activate the vacuum cleaner motor of the central vacuum cleaning system.

2. The automatic dustpan apparatus of claim 1 including control switch operating means engaging said valve means and said vacuum cleaner motor control switch for activating said vacuum cleaner motor control switch when the valve means is in substantially open position and de-activating the vacuum cleaner motor control switch when the valve means is operated to begin closing.

3. The automatic dustpan apparatus of claim 2 wherein the valve operating means comprises a user-operated lever arm mounted on the dustpan body member and configured for operative movement controlling the operation of the valve means to open and close the outlet opening, and said control switch operating means comprises a projecting member on the valve means configured for operative movement therewith into and out of engagement with the vacuum cleaner motor control switch when the lever arm on the body member is operated to open and close the valve means.

4. The automatic dustpan apparatus of claim 2 wherein said valve operating means comprises an electrically operated solenoid operatively engaging the valve means for selectively opening and closing the latter, the operation of the solenoid being controlled by a solenoid-actuation switch by which a user of the automatic dustpan apparatus may operate the solenoid to selectively open and close the valve means.

5. The automatic dustpan apparatus of claim 1 wherein the body member is configured to be fixedly anchored to the baseboard of a cabinet for stationary disposition of the debris-receiving inlet opening within the toe-kick recess of the cabinet.

6. The automatic dustpan apparatus of claim 1 wherein the body member is configured to be contained within an upstanding wall of a building for disposition of the debris-receiving inlet opening in registry with a surface to be swept.