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Portable vacuum cleaner and method

Inactive Publication Date: 2005-04-21
NICHOL CHARLES O
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] It has been found that by utilizing linkage positioned on an upright vacuum hopper and including a toggle mechanism, constant force may be provided to urge a gate into sealing engagement at a discharge end of a waste chute preparatory to opening of the chute for convenient discharge of industrial trash collected in the hopper.

Problems solved by technology

Vacuum cleaners for industrial use have a common problem in that it is difficult to exert a high suction and at the same time provides adequate discharge apparatus for expelling waste material received within the vacuum chamber.
The use of collection bags is impractical for industrial use where pressure drops are increased as well as costs, together with limited air flow.

Method used

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  • Portable vacuum cleaner and method
  • Portable vacuum cleaner and method
  • Portable vacuum cleaner and method

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] The drawings illustrate a portable vacuum cleaner having a upright frame A. An upright hopper B having an open top is carried within the frame. A closure cover C is provided for closing the open top of the hopper. Mechanical apparatus D evacuating air from the hopper creating a partial vacuum is preferably carried on the cover for collecting waste material collected within the hopper. A discharge chute E is carried adjacent a lower end of the hopper. A gate F normally closes the discharge chute for retaining material collected in the hopper, and linkage G is carried adjacent to and externally of the hopper opening the gate discharging the material from the hopper. Wheels H are carried by the frame for transporting the vacuum cleaner. At least one receptacle I is carried by the frame for receiving a lift truck operator.

[0020] The linkage G includes a toggle apparatus J that in post center position exerts a continuous force urging the gate to closed position locking the gate i...

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Abstract

An upright frame (A) carries a hopper (B) having a centrifugal fan (D) for creating a partial vacuum in the hopper. A discharge chute (E) on a lower end of the hopper is normally closed by a gate (F). The method contemplates use of the receptacles (I) to receive the forks of a lift truck for lifting the vacuum cleaner to facilitate discharge of trash collected in the hopper through the discharge chute.

Description

BACKGROUND OF THE INVENTION [0001] This invention relates to a portable vacuum cleaner and method for wet and dry pickup especially suitable for industrial uses employing high vacuums, portability and maneuverability facilitating discharging of material collected during vacuuming. [0002] Vacuum cleaners for industrial use have a common problem in that it is difficult to exert a high suction and at the same time provides adequate discharge apparatus for expelling waste material received within the vacuum chamber. For example, U.S. Pat. Nos. 3,496,592 and 3,619,849 illustrate the use of free standing hoppers or vacuum chambers carried on wheeled platforms for wet pickup in carpet cleaning. It is necessary in such vacuum cleaners to provide suitable pumps within the bottom of the tanks to forcefully expel waste water through a line provided for that purpose. Additional discharge problems are illustrated in U.S. Pat. No. 4,467,494 where lint collection bags are utilized. The use of coll...

Claims

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Application Information

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IPC IPC(8): A47L7/00A47L11/40
CPCA47L7/0038A47L11/4075A47L11/4055A47L7/0042
Inventor NICHOL, CHARLES O.
Owner NICHOL CHARLES O