Home | Links | Contact Us | More About Intellectual Property | Bookmark

Search patents:

Home

Gutter-related

Pumps-and-pump-handling-apparatus

Insulating cover for attic stair opening

OF THE INVENTION With further reference to the drawings, the attic stair insulating cover of the ...

Pressure relief panel hold open apparatus and method

In one aspect the invention provides a method of protecting a building against over-pressures in ...

Snow load removal

Referring to FIGS. 1 and 5, in building 25 on concrete foundation 26, a base layer of self-...

Bladder insulation

This invention relates to an improved insulation material for existing structures and consists of ...

Side unloading bin for storing and discharging free-flowing granular material

The present invention utilizes the same general concept of the prior inventions, but in a side-...

Swimming pool cover support, covered swimming pool and method of covering a swimming pool

What is claimed is: 1. A support for a pool cover placed over the support, said support being ...

Asymmetrical pneumatic deicer

What is claimed is: 1. A pneumatic deicer applied upon an aircraft component wherein a pair of ...

Controller valve for deicer

The invention is directed to a system for controlling the inflation of deicer members in response ...

Airfoil with integral de-icer using overlapped tubes

According to an aspect of the present invention, there is provided a structural member having ...

Method for unlocking a window pane of a railroad car with an inflatable pressure tube

A goal of the invention is to provide an unlocking device for a window pane that has an inflatable ...

Pumps and pump handling apparatus

Details

Inventors: Jones, James;
Assignee: British Nuclear Fuels PLC (Risley, GB2)
Primary Examiner: Chambers; A. Michael
Assistant Examiner:
Attorney, Agent or Firm: Hochberg; D. Peter, Holt; William H., Hinds; William R.

An electric pump 13 is mounted on a support 24 and can be raised and lowered using chains 25 driven by a motor. Supply cable 14 for the pump is stored on drum 15. Fluid is discharged by the pump through hose 17 stored on drum 18. A spray ring 20 attached to the pump is supplied with water through hose 21 stored on drum 22. The drums are rotated by hydraulic motors 32 and chains eg 36, 37. As the pump is raised at a uniform speed the drums are rotated to take up the slack hose and cable. The height of the pump is sensed from movement of the pump motor and the pressure supplied to the hydraulic motors is changed in discrete steps to maintain the wind up speed on to the drums despite the change in weight of unwound hose or cable.

DETAILED DESCRIPTION I claim: 1.
Handling apparatus for a pump, said apparatus comprising a first drum associated with a first hose for supplying fluid to the pump, a first motor for rotating the first drum to wind the first hose onto the first drum, a second drum associated with a second hose for discharge of fluid medium by the pump, a second motor for rotating the second drum to wind the second hose onto the second drum, a third drum associated with electric cable for the pump, and a third motor for rotating the third drum to wind the cable onto the third drum, and controlling means being operative to control the first, second and third motors in a predetermined varying manner in dependence on the varying but currently unwound amount of the respective hose or cable to avoid slack in the first and second hoses and the cable during winding rotation of the first drum, the second and the third drum.
2.
Apparatus as claimed in claim 1, in which the first and second and third motors are hydraulic motors.
3.
Apparatus as claimed in claim 1 including a support on which a pump can be mounted, and means for raising and lowering the support.
4.
Apparatus as claimed in claim 1 in which the control means comprises means for maintaining the wind up speed substantially irrespective of the weight of the respective hose or cable unwound from the respective drum.
5.
Apparatus as claimed in claim 4, in which the wind-up speed is maintained by varying the energy supply to the respective motor in dependence on the height of the pump support.
6.
Apparatus as claimed in claim 5, including means for varying the energy supply in a plurality of discrete steps.

Description:
This invention relates to pumps and pump handling apparatus.
According to this invention handling apparatus for a pump comprises a drum on which an elongate member for connection to the pump can be wound and unwound as the pump is raised and lowered in relation to the drum, a motor for rotating the drum to wind the elongate member onto the drum, and means for controlling the motor in dependence on the unwound amount of elongate member to avoid slack in the elongate member

Related patents

	Telephone enclosure OF THE INVENTION The present invention may be most easily understood with reference to FIGS. 1, 2, and 3. FIG. 1 is a front view of a telephone enclosure 10 according ...
	Pile cap The current invention was designed to reduce the destructive effects of the shear stress on a pile cap and PATENT to increase the resistance against the rotational ...
	Method and apparatus for supporting and anchoring drainage channel sections All of these needs and others are met by the methods and apparatus for supporting and anchoring drainage channel sections according to the present invention. In ...
	Hanger for fire sprinkler pipe It is therefore an object of the present invention to provide a pipe hanger for a fire protection sprinkler system pipe, capable of holding the pipe a significant ...
	Sewer pipe relining method I claim: 1. In a method for the repair of sewer mains having lateral openings with reliner pipe by the steps of: measuring a section of sewer main to determine the ...
	ORU latch OF A PREFERRED EMBODIMENT Reference is made to FIG. 1 which pictorially illustrates the relationship of the elements of a first embodiment of the system in place on ...
	Crabbing bait holder OF THE DRAWING In the drawing the crabbing bait holder 10 comprises a frame 12 including a pair of joined planar members 14, 16, which are openable and closable about a ...
	Opening and closing structure of window member OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagrammatical view showing an ...
	Portable building This invention successfully overcomes these and other problems of prior buildings of the type under consideration by providing a portable building structure of foldable, ...
	Expandable rack What is claimed is: 1. An expandable rack comprising (1) shelf means consisting of a plurality of shelf sections and (2) bracket means for slidably supporting said shelf ...

0.014
Archive: All patents - Links Copyright (c)2006 Eipa-patents.org - All rights reserved