Vacuum cleaner universal nozzle
First Claim
1. A resilient universal nozzle for vacuum cleaning apparatus, said nozzle comprising an elongated tubular element with a coupling end which fits on a tubular pipe means in fluid communication with a source of sub-atmospheric pressure and a body portion terminating in a nozzle inlet end distal from said coupling end, said tubular element having a smooth bore, at least said body portion and nozzle inlet end comprising material which is deformable under manual pressure by the operator and having sufficient resiliency in operation and under suction pressures such that it returns to its original undeformed configuration upon release of said manual pressure, said resiliency preventing the collapse of said nozzle when subjected to material entraining suction pressures in either the deformed or undeformed condition, whereby the size and shape of at least the nozzle inlet end can be altered controllably to suit the operating requirements.
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Accused Products
Abstract
A universal nozzle which has a tubular body with a coupling end that fits on the hose of a vacuum cleaner and an inlet end distal from the coupling end. The nozzle has a smooth bore and is made from a resilient material which is manually deformable such that the inlet opening and configuration can be altered by the operator to suit operating conditions. The nuzzle material has sufficient resiliency to regain its original configuration after being manually deformed and to resist collapse because of suction pressures whether in a deformed or undeformed condition. A synthetic organic compound such as plastic resin or a natural material alloyed with fillers or reinforcing agents to produce a formulation having a Shore-A hardness of 60-95, preferably 80±10, is a particularly suitable nozzle material.
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Citations
13 Claims
- 1. A resilient universal nozzle for vacuum cleaning apparatus, said nozzle comprising an elongated tubular element with a coupling end which fits on a tubular pipe means in fluid communication with a source of sub-atmospheric pressure and a body portion terminating in a nozzle inlet end distal from said coupling end, said tubular element having a smooth bore, at least said body portion and nozzle inlet end comprising material which is deformable under manual pressure by the operator and having sufficient resiliency in operation and under suction pressures such that it returns to its original undeformed configuration upon release of said manual pressure, said resiliency preventing the collapse of said nozzle when subjected to material entraining suction pressures in either the deformed or undeformed condition, whereby the size and shape of at least the nozzle inlet end can be altered controllably to suit the operating requirements.
Specification