CA2237905A1 - Spray nozzle - Google Patents

Spray nozzle

Info

Publication number
CA2237905A1
CA2237905A1 CA002237905A CA2237905A CA2237905A1 CA 2237905 A1 CA2237905 A1 CA 2237905A1 CA 002237905 A CA002237905 A CA 002237905A CA 2237905 A CA2237905 A CA 2237905A CA 2237905 A1 CA2237905 A1 CA 2237905A1
Authority
CA
Canada
Prior art keywords
liquid
resilient
liquid pressure
segments
feed port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002237905A
Other languages
French (fr)
Other versions
CA2237905C (en
Inventor
Otto Tschumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Epiroc Rock Drills AB
Original Assignee
Mbt Holding Ag
Otto Tschumi
Construction Research & Technology Gmbh
Atlas Copco Rock Drills Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH02327/96A external-priority patent/CH691692A5/en
Application filed by Mbt Holding Ag, Otto Tschumi, Construction Research & Technology Gmbh, Atlas Copco Rock Drills Ab filed Critical Mbt Holding Ag
Publication of CA2237905A1 publication Critical patent/CA2237905A1/en
Application granted granted Critical
Publication of CA2237905C publication Critical patent/CA2237905C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

A spray nozzle of the type adapted to feed a liquid to a material being sprayed therefrom comprises a tubular spray conduit around which is arranged an annular feed port, this feed port being closed in a liquid-tight manner by resilient material openable by liquid pressure and whose degree of opening, and therefore the quantity of liquid fed to the material, rises linearly with increasing liquid pressure.
Preferably, the resilient material is provided by a membrane ring (7) which is a flat ring with inwardly-tapering radial ridges (8b) raised thereon, the gaps between the ridges being filled with an elastomeric material, such that a series of resilient segments (9) is created. Under liquid pressure, the segments are compressed equally, giving a nearly completely annular flow of liquid into the material. The nozzle is particularly useful for the spraying of concrete, especially by the dry method.
CA002237905A 1996-09-24 1997-09-24 Spray nozzle Expired - Fee Related CA2237905C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH02327/96A CH691692A5 (en) 1996-09-24 1996-09-24 Spray nozzle mixing unit, in particular for the concrete dry spraying.
CH2327/96 1996-09-24
PCT/EP1997/005325 WO1998013563A1 (en) 1996-09-24 1997-09-24 Spray nozzle

Publications (2)

Publication Number Publication Date
CA2237905A1 true CA2237905A1 (en) 1998-04-02
CA2237905C CA2237905C (en) 2006-04-25

Family

ID=36253190

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002237905A Expired - Fee Related CA2237905C (en) 1996-09-24 1997-09-24 Spray nozzle

Country Status (1)

Country Link
CA (1) CA2237905C (en)

Also Published As

Publication number Publication date
CA2237905C (en) 2006-04-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170925