Semi-automatic gas pilot orifice clean-out device

Details Semi-automatic gas pilot orifice clean-out device Semi-automatic gas pilot orifice clean-out device

2002-09-25

2004-06-08

Cocks, Josiah (Department: 3749)

Combustion

With apparatus cleaning, purging or scavenging means

Scraping or clearing member

C239S117000, C137S244000

Reexamination Certificate

active

06746233

ABSTRACT:

FIELD OF THE INVENTION
This invention relates to a device for cleaning out the orifice of a gas pilot in appliances or devices that utilize a gas pilot as an ignition source. More specifically, it relates to a device for cleaning out the pilot flame gas orifice in agricultural brooders incorporating a pilot flame gas orifice.
BACKGROUND OF THE INVENTION
An agricultural brooder is operated in a humid, corrosive environment containing airborne particulates and other matter, such as animal dust and debris, as well as dust and debris from feed supplies. Other appliances and devices that utilize gas pilot similarly may be operated in environments containing airborne particulates and other matter from a variety of sources present in those environments.
With respect to agricultural brooders, there are times during the growing cycle when there can be a high degree of air movement within the building. There are also periods during the growing cycle when the agricultural brooder is not in operation During these times, there is opportunity for the pilot flame gas orifice, also referred to herein as a pilot orifice, to become partially or wholly blocked with debris from the environment. Further, the gas supply lines that carry gas to a gas pilot may become contaminated with dust or other debris, clogging the pilot orifice.
When such blockages occur, the pilot orifice in an agricultural brooder or other appliance will require cleaning in order to restore proper function, allowing unobstructed gas flow to the orifice.
The construction of a gas pilot and/or of the pilot flame gas orifice, the associated mounting hardware and gas-tight plumbing fittings, and the location of such an orifice within the gas pilot or other appliance can make cleaning of the pilot orifice difficult and time consuming. This is particularly true where the construction and configuration of the gas pilot requires disassembly for the purpose of manual cleaning of the gas pilot and its orifice, followed by reassembly to return the gas pilot to operation.
A mechanism for achieving the cleaning function without disassembling the gas pilot, its orifice or its associated plumbing and mounting hardware would therefore be desirable and advantageous. Such a mechanism or device must incorporate materials and a design so as to remain gas-tight and provide a reliable function within a hostile environment and at the elevated temperatures to which it is exposed. The clean out device of the invention is such a mechanism or device.


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