# US 7,407,116 B2 · Spray washer structure of insulator used for aircraft

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- Number: US 7,407,116 B2
- Document ID: US7407116B2
- Status: Granted
- Kind: B2
- Application number: 11/284,829
- Filed: 2005-11-23
- Published: 2006-10-26
- Granted: 2008-08-05
- Earliest claimed: 2005-04-20
- Assignees: Emerald Pacific Airlines
- Inventors: James Lee
- Web page: https://patentgrep.com/patent/US7407116B2

## CPC

- B08B 3/026: {Cleaning by making use of hand-held spray guns; Fluid preparations therefor}
- B05B 9/01: Spray pistols, {discharge devices}(B05B9/03 takes precedence)
- B05B 15/62: Arrangements for supporting spraying apparatus, e.g. suction cups
- B05B 15/63: Handgrips
- B08B 3/028: {Spray guns}
- B64D 1/22: Taking-up articles from earth's surface
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT

## Abstract

A spray washer structure used for attaching to an aircraft and washing insulators on high-voltage transmission lines includes a pivot seat, a core tube, an inner tube, and a nozzle. The pivot seat is supported by a plurality of legs and a rear leg that are attached at the aircraft. The mid-section of the core tube is pivotally connected to the pivot seat by the use of a pivot, and an end portion of the core tube is connected to at least an inclined resilient buffer link at another end portion of the pivot. The innertube is passed through and pivoting within the core tube. The nozzle is secured at the front end of the inner tube by an adjustable joint. Moreover, the nozzle is also connected to a hose connected to a water source.

## Claims

### Claim 1

A spray washer structure for attaching to an aircraft and washing insulators on high-voltage power transmission lines comprising:
a pivot seat supported by a plurality of legs, the legs being attached to the aircraft;
a core tube pivotally connected to the pivot seat at a mid-section of the core tube via a pivot;
an inner tube passed through and pivotable within the core tube; and
a nozzle secured at a front end of the inner tube by an adjustable joint, the nozzle is also connected to a hose inserting from the front end of the inner tube and passing through it to be exposed at the rear end thereof to be connected to a water source;
wherein the pivot is connected to one end portion of the core tube by the use of at least a resilient buffer link;
a handle having a short bent bar attached on each side of the inner tube positioned at another end portion of the core tube is provided to facilitate the holding and manipulating for the operator.