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Filtered exhuast conduits for organic debris collection devices

a technology of organic debris and exhaust conduit, which is applied in the direction of cleaning filter means, suction cleaners, construction, etc., can solve the problems of reducing the vacuum effect, reducing it to near zero, and being subjected to high internal pressure from the blower air stream

Inactive Publication Date: 2008-05-15
WOODLAND POWER PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention provides a filtered exhaust conduit and an organic debris collection device. The conduit has an intake end, a curved section, a vent, and a filter device. The device also includes a blower unit, a debris collector container, an exhaust conduit, a vent, and a filter device. The filter device is removably secured over the vent to form a substantially air tight fit on the vent. The technical effects of this invention include improved air quality, reduced noise, and improved efficiency in the collection and removal of organic debris."

Problems solved by technology

However, as the bag fills up, the pores become clogged with debris, which substantially blocks the air flow and greatly reduces the vacuum effect, sometimes reducing it to near zero.
In addition, when such fabric bags become clogged, they are subjected to high internal pressure from the blower air stream.
If the blower is very powerful, the bag can rip apart at the seams.
If the weave of the bag is made larger to avoid clogging, a great quantity of organic debris material is lost through the mesh, and the equipment operator may be exposed to quantities of choking dust and debris particles.
Furthermore, the higher air pressure inside the bag tends to “press” the leaves, grass and other debris against the inside of the mesh, effectively blocking the airflow and reducing the vacuum effect.
Additionally, the exhausted fine debris can remain in the air for some time, causing the operator to have an obstructed view and / or difficulty breathing.
Additionally, the exhausted debris can redeposit itself on the surface being cleaned such that a less than optimal cleaning result is obtained.

Method used

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  • Filtered exhuast conduits for organic debris collection devices
  • Filtered exhuast conduits for organic debris collection devices
  • Filtered exhuast conduits for organic debris collection devices

Examples

Experimental program
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Embodiment Construction

[0018]Referring to the drawings and in particular to FIGS. 1 through 3, an exemplary embodiment of a filtered exhaust conduit 10 is shown. Filtered exhaust conduit 10 is shown in use with an organic debris collection device such as that shown and described in Applicants own U.S. Pat. No. 6,029,312, the contents of which are incorporated herein by reference. Advantageously, exhaust conduit 10 of the present disclosure includes a filter device 22 so that the conduit is configured to separate debris in two stages. More particularly, exhaust conduit 10 separates the majority of debris via centrifugal force, while vent device separates a minority of smaller or fine debris remaining entrained in the vented air.

[0019]Generally, organic debris collection device includes a blower unit 12 and a collector container 14, where exhaust conduit 10 places the blower unit in fluid communication with the collector container. As illustrated, blower unit 12 and collector container 14 are secured to fra...

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PUM

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Abstract

A filtered exhaust conduit is provided. The conduit includes an intake end, an exit end, a curved section, a vent, and a filter device. The intake end is connectable to a blower unit, while the exit end is connectable to a debris collector container. The curved section extends between and joins the intake end and the exit end. The vent is between the intake end and the exit end and is positioned through a lower inner wall of the filtered exhaust conduit. The filter device is removably secured over the vent to form a substantially air tight fit on the vent. An organic debris collection device having the filtered exhaust conduit is also provided.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present disclosure is related to organic debris collection devices. More particularly, the present disclosure is related to organic debris collection devices having filtered exhaust conduits.[0003]2. Description of Related Art[0004]The collection of leaves, grass clippings and other organic debris from lawn mowers into either fabric and / or rigid collector bags is well known. In order to keep the air stream and any debris entrained therein moving, the collector bags are often provided with a vent for the high-velocity air.[0005]In lawnmowers that employ collector bags, this is commonly done by using a bag of porous weave that permits the air to escape through the fabric. However, as the bag fills up, the pores become clogged with debris, which substantially blocks the air flow and greatly reduces the vacuum effect, sometimes reducing it to near zero. In addition, when such fabric bags become clogged, they are subject...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E01H1/08
CPCE01H1/0827
Inventor WHITNEY, JAMES C.
Owner WOODLAND POWER PRODS