Patent NZ201884A successfully refreshed from Google Patents.
NZ201884A
Expired / Lapsed
NZ
⏱️ 0.0 years remaining
Suction/blower device using compressed air blast
Assignee: Addington Engineering Ltd
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Filing: 1982-09-10
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Granted: —
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Expires: 2002-09-10
Abstract
No abstract record available.
Inventors
- 👤 W Dennis
Bibliographic Details
Application Number
—
Jurisdiction
NZ
Data Source
google_patents
Last Synchronized
2026-11-08 21:17
CPC Classifications
—
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
A device for providing both suction and gas blast facilities, comprising: a hollow barrel open at both ends; an eductor mounted on the internal wall of said barrel in communication with a gas-supply bore formed in said device, said eductor having a first position in which gas supplied ' through said bore is directed in one direction along said r. L. B. & A. yffowji (The gjfcian h Tvp.v&p P-wn/p n/rrmv barrel, and a s=ge-b±tw position in whichj^gas supplied through <£>S^So/%s' said bore is directed in the other direction along said barrel,
Claim 2
Independent Claim
92 words
A device for providing both suction and gas blast facilities, comprising: a hollow barrel open at both ends; an eductor mounted on the internal wall of said barrel in communication with a gas-supply bore formed in said device, said eductor having a first position in which gas supplied ' through said bore is directed in one direction along said r. L. B. & A. yffowji (The gjfcian h Tvp.v&p P-wn/p n/rrmv barrel, and a s=ge-b±tw position in whichj^gas supplied through <£>S^So/%s' said bore is directed in the other direction along said barrel,
Claim 3
Dependent Claim
63 words
The device as claimed in Claim 1 wherein part of the barrel is removeably secured to the remainder of the barrel at a position adjacent the eductor and the eductor can be changed from said first position to said second position by removing said removeable part of the barrel, removing, reversing, and replacing said eductor, and replacing said removeable part of the barrel.
Claim 4
Dependent Claim
21 words
The device as claimed in Claim 1 or Claim 2 wherein the gas supply bore is provided with an on/off trigger.
Claim 5
Independent Claim
52 words
The device as claimed in any preceding claim wherein the eductor is mounted at or near the mid-point of the length of the barrel and the internal diameter of the barrel increases gradually from the location of the eductor to each end of the barrel. - 7 ■'AS 2? OCT TO REcesv-
Claim 6
Independent Claim
22 words
The device as claimed in any one of Claims 1-3 wherein the internal diameter of the barrel is constant along its length.
Claim 7
Independent Claim
34 words
The device as claimed in any preceding Claim wherein the eductor comprises an annular cross-section body formed with an annular aperture in communication with both the gas-supply bore and the interior of the barrel.
Claim 8
Dependent Claim
39 words
The device as claimed in Claim 6 wherein said annular aperture is in communication, with the gas-supply bore only through a passage the longitudinal axis of which is at an acute angle to the longitudinal axis of the barrel.
Claim 9
Independent Claim
41 words
The device as claimed in any one of Claims 1-5 wherein the eductor comprises an annular cross-section body formed with a plurality of spaced holes, each hole being in communication with both the gas-supply bore and the interior of the barrel.
Claim 10
Dependent Claim
39 words
The device as claimed in Claim 8 wherein each said hole is in communication with the gas-supply bore only through a. passage the longitudinal axis of which is at an acute angle to the longitudinal axis of the barrel.
Claim 11
Independent Claim
50 words
A device for providing both suction and gas blast facilities, substantially as hereinbefore described with reference to and as shown in the accompanying drawings. ADDINGTON ENGINEERING LIMITED by their authorised agents: P.L.BERRY & ASSOCIATES Per: \\- T PATENT Of H">: | ' 8 DEC 19S3 & RECEiVi - 8 -
Claim 12
Independent Claim
50 words
A device for providing both suction and gas blast facilities, substantially as hereinbefore described with reference to and as shown in the accompanying drawings. ADDINGTON ENGINEERING LIMITED by their authorised agents: P.L.BERRY & ASSOCIATES Per: \\- T PATENT Of H">: | ' 8 DEC 19S3 & RECEiVi - 8 -
References Cited (Backward Citations)
No citation records indexed.
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