US3949651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making filter media
Assignee: Individual
•
Filing: 1975-06-18
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Granted: 1976-04-13
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Expires: 1995-06-18
Abstract
Abstract A method of manufacturing a filter media having plyed sections of obliquely oriented honeycomb cells is disclosed as well as a novel filter media of stacked sections of obliquely oriented honeycomb cells.
Inventors
- 👤 Victor Vernon Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:16
CPC Classifications
B; B31; B31D; B31D3/00; B31D3/02; B01; B01D; B01D25/00; B01D25/001; B01D39/00; B01D39/14; B01D46/00; B01D46/10; Y; Y10; Y10S; Y10S493/00; Y10S493/941; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
101 words
A method of manufacturing filter media having a plurality of stacked, crushed honeycomb sections in relative juxtaposition comprising the steps of: a. selecting a honeycomb section having the axis of its cells disposed at an oblique angle relative to the media plane of the section; b. extending the honeycomb of step (a) until the cells thereof are in open configuration; c. crushing the cells of the extended honeycomb of step (b) into the plane of the honeycomb to dispose the axis of the cells more obliquely to the plane; d. plying sections of the crushed honeycomb to form a filter media.
Claim 2
Independent Claim
101 words
A method of manufacturing filter media having a plurality of stacked, crushed honeycomb sections in relative juxtaposition comprising the steps of: a. selecting a honeycomb section having the axis of its cells disposed at an oblique angle relative to the media plane of the section; b. extending the honeycomb of step (a) until the cells thereof are in open configuration; c. crushing the cells of the extended honeycomb of step (b) into the plane of the honeycomb to dispose the axis of the cells more obliquely to the plane; d. plying sections of the crushed honeycomb to form a filter media.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein the selecting step (a) selects a plurality of honeycomb sections.
Claim 4
Dependent Claim
37 words
The method of claim 1 wherein the selecting step (a) selects a plurality of honeycomb sections and each section during plying step (d) is plyed so that the axis of each cell in adjacent sections respectively intersect.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein the plying step (d) plys the section so that the axis of cells in adjacent sections intersect.
Claim 6
Dependent Claim
13 words
The method of claim 4 where the angle of intersection is approximately 90°.
Claim 7
Dependent Claim
25 words
The method of claim 1 wherein subsequent to crushing and prior to plying the additional step of cutting the crushed honeycomb into sections takes place.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |