HALE PRODUCTS, INC.
|HALE PRODUCTS, INC. Patent applications|
|Patent application number||Title||Published|
|20150184661||Transportable High Vertical-Lift Emergency Water Pumping System - A transportable high vertical-lift emergency water pumping system moves emergency water from a water source at a low elevation to a higher elevation. The pumping system has a first pump having a first-pump suction port at the higher elevation and a second pump having a second-pump suction port at the low elevation and a second-pump discharge port in fluid communication with the first-pump suction port. A variable speed driver is operatively coupled to the first pump. A load sensing hydrostatic drive system is operatively coupled to the variable speed driver and to the second pump. The load sensing hydrostatic drive system is configured to maintain a minimum net positive suction head at the first-pump suction port sufficient to prevent cavitation in the first pump when the variable-speed driver operates at any speed of a plurality of speeds across a range of flows.||07-02-2015|
|20120103435||AUTOMATIC BLEED VALVE ASSEMBLY - An automatic bleed valve assembly for intake gas in an intake line supplying a liquid has a body having a chamber in fluid communication with an inlet port and an outlet port. A movable member in the chamber is movable in translation between an inlet-port sealing position and an outlet-port sealing position. A biasing member operatively coupled to the movable member and to the chamber is configured to apply to the movable member a reactive force directed toward the inlet port, the reactive force being greater than a gas-resistance force applied to the movable member by the intake gas when the intake gas is flowing into the chamber and less than a liquid-resistance force applied to the movable member by the liquid when the liquid is flowing into the chamber.||05-03-2012|
|20110240317||INTEGRATED CONTROLS FOR A FIRE SUPRESSION SYSTEM - A fire suppression system having a foam proportioning system, a water source, and a controller. The foam proportioning system includes a foam tank having at least two types of chemical foamants, a selector valve in fluid communication with the foam tank for selecting one of the at least two types of chemical foamants, a foam pump in fluid communication with the selector valve for supplying the selected chemical foamant to a discharge unit, and a foam controller operatively connected to the foam pump and the selector valve. The water source is connected to the foam proportioning system for mixing water with the selected chemical foamant to form a fire suppression fluid. The controller is operatively connected to the foam proportioning system and includes a one-touch activation control for activating the controller. The controller is also configured to automatically output to the foam controller inputs for configuring the foam pump.||10-06-2011|
|20090260836||Integrated Controls For A Fire Suppression System - A fire suppression system having a plumbing assembly, an engine, a hose, an air-bleed valve, and a controller is provided. The controller includes a one-touch activation control. The controller is also configured to automatically activate the air-bleed valve to remove air within the hose to prevent user injury and damage to the fire suppression system. A fire suppression system that automatically configures the fire suppression system to output a predetermined fire suppression fluid composition upon actuation of a one-touch activation control is also provided. In addition, an integrated control system is provided to automatically configure a fire truck's interlock and shift pump operation.||10-22-2009|
|20090218110||Hybrid Foam Proportioning System - A hybrid foam system for providing a variety of proportioned foam solutions is provided. The system includes a low flow foam proportioning system operatively associated with a high flow foam proportioning system and a system controller for controlling the operating conditions of the overall hybrid foam system.||09-03-2009|
|20090050771||Stabilization and Support Strut with Secure Deployment Features - A stabilization and support strut for use in rescue operations in buildings, trenches, vehicle accidents, and the like has secure deployment features including first and second inter-fitting collar assemblies, the first collar assembly including a first collar, circumferentially based spring-biased piston-retaining pins mounted in the collar for fitting into orifices in a piston body, and a locking pin for precluding rotation and axial movement of the first collar on the strut; and the second collar assembly including a second collar rotatingly secured on the barrel with a portion of the second collar underlying the first and having a circumferentially inclined ratchet surface for snugly engaging the piston-retaining pins upon rotation of the second collar, the second collar further including rotatable studs for engaging the barrel and precluding rotation of the second collar about the barrel when snug against the piston-retaining pins.||02-26-2009|
|20080292472||Method for Controlling the Discharge Pressure of an Engine-Driven Pump - A system for controlling the pressure output of an engine-driven centrifugal fire pump includes a discharge pressure sensor mounted in the discharge line of the pump. A governor varies the rpms of the engine in response to pressure changes detected by the discharge pressure sensor. If the pressure in the system is higher than the desired output pressure when the engine is running at its idle speed an electronically controlled hydraulic relief valve responsive to the discharge pressure sensor operates to relieve the excess pressure in over pressure situations. If the pressure in the system is lower than the desired output pressure when the relief valve is fully closed, the engine speed is increased.||11-27-2008|
Patent applications by HALE PRODUCTS, INC.