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US 5,301,756 AGranted
Vehicle mounted aerial lift
AssigneeCrash Rescue Equipment Service, Inc.
InventorsRobert G. Relyea, Edward V. Garnett
Life of this patent
Estimating the term…
Abstract
An aerial boom system for a fire-fighting vehicle which has a hollow piercing nozzle on the outer end thereof for passing through the wall of a structure such as an aircraft fuselage to the interior of the structure where a fire-retardant material may be injected. The nozzle may pierce the fuselage from a remote distance because of the extensible boom. It has thereon a torque limiter to protect the nozzle assembly when forces are applied to the nozzle assembly in a direction transverse to the piercing direction.
Claims3
An aerial boom system for a fire-fighting vehicle comprising:
- an elongated boom mounted on the vehicle;
- power means for selectively raising and lowering the boom to a desired elevation;
- a conduit on the vehicle for carrying a flowable fire-retardant material to the outer end of the boom;
- an elongated hollow piercing nozzle coupled to the conduit and having a tapered point with at least one orifice therein for expelling the fire-retardant material;
- mounting means on the outer end of the boom for supporting the hollow piercing nozzle;
- drive means coupled to the mounting means for independently moving the hollow piercing nozzle in both a horizontal and a vertical plane;
- the hollow piercing nozzle extending beyond the end of the boom such that the hollow piercing nozzle can be used to penetrate a wall of a structure from a remote distance and enable a fire-retardant to exit the at least one orifice into the interior of the structure;
- and
- a slip clutch mounted between the outer end of the boom and the drive means such that undesirable forces on the elongated nozzle that may occur when piercing a structure are limited to a predetermined value in the Y plane perpendicular to the piercing direction of the elongated nozzle so as to protect the piercing nozzle, mounting, and drive means from damage.
6 more elements
Dependencies are inferred from the claim text.