GB2156232A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Reinforced pleated filtering material
Assignee: Marshall D A G
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Filing: 1984-03-29
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Granted: —
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Expires: 2004-03-29
Abstract
Abstract The invention is concerned with a fluid filtering medium formed by bonding a plastics coated metal grille (26) or other perforated reinforcing means to the peaks of the pleats on one or both sides of a block (30) of pleated filtering material. <IMAGE>
Inventors
- 👤 Dennis Albert George Marshall
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-11-08 19:36
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; B01D46/523; B01D29/00; B01D29/11; B01D29/111; B01D46/0001; B01D46/10; B01D2201/00; B01D2201/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
50 words
fluid filtering medium comprising pleated filtering material, in which the peaks of the pleats on one or both sides of the pleated material are reinforced by one or more bonded on grilles, perforated sheets or other such perforated
reinforcing means permitting the flow of fluid through the pleated filtering material.
Claim 2
Dependent Claim
50 words
fluid filtering medium comprising pleated filtering material, in which the peaks of the pleats on one or both sides of the pleated material are reinforced by one or more bonded on grilles, perforated sheets or other such perforated
reinforcing means permitting the flow of fluid through the pleated filtering material.
Claim 3
Dependent Claim
70 words
A fluid filtering material according to claim 1, in which the grilles or other reinforcing means are made of metal and are heated during manufacture of the fluid filtering medium after they have been coated with a synthetic plastics material in powder form, the grilles being applied to the peaks of the pleats after the synthetic plastics powder has melted and formed a film which serves as a bonding agent.
Claim 4
Dependent Claim
31 words
A fluid filtering medium according to claim 1 or claim 2, in which the pleated filtering material comprises filtering paper, glass fibre paper, openpore polyurethene foam material or random fibre mat.
Claim 5
Dependent Claim
43 words
A fluid filtering medium according to any one of claims 1 to 3, in which the pleats are held in the pleated filtering material by ribbons or lines of synthetic plastics material which has been applied to the filtering material in liquid form.
Claim 6
Dependent Claim
24 words
A fluid filtering medium according to any preceding claim, in which the pleats of the pleated filtering material lie generally parallel with one another.
Claim 7
Dependent Claim
17 words
A fluid filtering medium substantially as described herein with reference to Figure 3 of the accompanying drawings.
Claim 8
Dependent Claim
17 words
A fluid filtering medium substantially as described herein with reference to Figure 3 of the accompanying drawings.
Claim 9
Dependent Claim
32 words
A fluid filtering medium according to any preceding claim incorporating pleated filtering material produced by a method substantially as described herein with reference to Figures 1 and 2 of the accompanying drawings.
References Cited (Backward Citations)
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