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US 6,145,764 AGranted
Replaceable tip for a nozzle
AssigneeRV Industries, Inc.
InventorsDaniel Gonzalez, James W. Smith, Donald R. Rutherford
Life of this patent
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AssigneeRV Industries, Inc.
InventorsDaniel Gonzalez, James W. Smith, Donald R. Rutherford
Estimating the term…
A nozzle assembly includes a readily replaceable nozzle tip which is replaced within a firnace adjacent an installed furnace-side end of a supply nozzle. The nozzle tip is provided with a pair of opposed, spring-loaded pivot pins which snap into apertures in the wall of a stationary nozzle conduit to removably secure the tip to the conduit. The pivot pin connection permits tilting of the tip relative to the stationary conduit in a vertical plane about a horizontal axis extending through both pivot pins. A link arm used for tilting the nozzle tip has a hook-shaped end which connects to a pin extending from the nozzle tip. The hook-shaped end of the link arm permits removal of the nozzle tip without having to remove the link arm from a lever assembly.
A replaceable nozzle tip assembly for a stationary nozzle, comprising a collar having a pair of opposed, radially extending, spring-loaded pivot pins which are resiliently biased radially by a biasing force and which are capable of removably connecting said replaceable nozzle tip to the stationary nozzle and to permit pivoting of said replaceable nozzle tip relative to the stationary nozzle, each of said spring-loaded pivot pins being capable of being urged radially against the biasing force so that said collar is capable of being installed on, and removed from, the stationary nozzle.
A tiltable coal nozzle tip assembly for a stationary coal nozzle utilized to discharge a stream of pulverized coal and air into a coal-fired furnace, comprising a collar having a pair of opposed, radially inward-extending, spring-loaded pivot pins which are resiliently biased radially inward and which are capable of removably connecting said tiltable nozzle tip to the stationary nozzle in a manner which permits pivoting of said tiltable nozzle tip in a vertical plane relative to the stationary nozzle for directing the stream of pulverized coal and air in any direction within a range of directions in said furnace, each of said pivot pins being resiliently biased radially inward by a spring means so that said pivot pins secure said collar to the stationary coal nozzle, and said spring means permitting said pivot pins to be urged radially outward so that said collar is capable of being installed on, and removed from, the coal nozzle.
A coal nozzle assembly for discharging a stream of pulverized coal and air into a coal-fired furnace, comprising:
A method of installing a replaceable tip on a stationary coal nozzle pre-installed in a furnace and having a longitudinal axis and a furnace-side end defining a discharge port within the furnace, comprising the steps of:
A method of removing a replaceable tip from a stationary coal nozzle installed in a coal-fired furnace and having a furnace-side end defining a discharge port within the furnace, wherein said replaceable tip is connected to the furnace-side end of the installed stationary coal nozzle by a pair of opposed, radially inward-extending, spring-loaded pivot pins which are resiliently biased radially into a pair of apertures on the stationary coal nozzle, comprising the steps of:
Dependencies are inferred from the claim text.