US5614147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for intermittently applying particulate powder to a fibrous substrate
Assignee: Kenvue Brands LLC
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Filing: 1995-03-10
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Granted: 1997-03-25
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Expires: 2015-03-10
Abstract
Abstract A method for applying particulate powder material to a moving, pre-formed, fibrous substrate. In this method, particulate powder material is entrained in a continuous airstream. The air-entrained stream of particulate material exits a nozzle to be applied to the substrate or recirculated. The stream of air-entrained particulate matter has a velocity component in the direction of movement of the fibrous substrate.
Inventors
- 👤 Kenneth A. Pelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:48
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; B; B05; B05B; B05B7/00; B05B7/14; B05B7/1404; B05B7/144; A61F13/15577; A61F13/15617; A61F13/15658; B05B14/00; B05B14/10; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
184 words
A method of applying particulate powder material to a pre-formed fibrous substrate comprising the steps of: moving said pre-formed fibrous substrate in a horizontal path; establishing a supply of particulate powder material in a feed hopper; feeding a metered quantity of particulate powder material into an outlet of the feed hopper; forming a continuous air-entrained stream of particulate powder material at said outlet of said feed hopper and transporting said continuous air-entrained stream through a nozzle for ejection onto said fibrous substrate; separating said continuous air-entrained stream of particulate powder material exiting said nozzle into a first and a second intermittent air-entrained stream of particulate powder material such that said first intermittent air-entrained stream of particulate powder material is applied to said moving pre-formed fibrous substrate at a predetermined location of said pre-formed fibrous substrate to form a layer of particulate powder material within a predetermined portion of said pre-formed fibrous substrate; wherein said continuous stream of air-entrained particulate powder material exiting said nozzle is directed along a flow direction which has a velocity component in the direction of said moving pre-formed fibrous substrate.
Claim 2
Independent Claim
184 words
A method of applying particulate powder material to a pre-formed fibrous substrate comprising the steps of: moving said pre-formed fibrous substrate in a horizontal path; establishing a supply of particulate powder material in a feed hopper; feeding a metered quantity of particulate powder material into an outlet of the feed hopper; forming a continuous air-entrained stream of particulate powder material at said outlet of said feed hopper and transporting said continuous air-entrained stream through a nozzle for ejection onto said fibrous substrate; separating said continuous air-entrained stream of particulate powder material exiting said nozzle into a first and a second intermittent air-entrained stream of particulate powder material such that said first intermittent air-entrained stream of particulate powder material is applied to said moving pre-formed fibrous substrate at a predetermined location of said pre-formed fibrous substrate to form a layer of particulate powder material within a predetermined portion of said pre-formed fibrous substrate; wherein said continuous stream of air-entrained particulate powder material exiting said nozzle is directed along a flow direction which has a velocity component in the direction of said moving pre-formed fibrous substrate.
Claim 3
Dependent Claim
26 words
The method of claim 1 wherein said layer of particulate powder material is formed within a predetermined portion of a thickness of said pre-formed fibrous substrate.
Claim 4
Dependent Claim
25 words
The method of claim 1 further comprising the step of returning said second intermittent air-entrained stream of particulate material to said supply of particulate material.
Claim 5
Dependent Claim
78 words
The method of claim 1 wherein said separating step comprises: providing a flow separator beyond an outlet of said nozzle and intermediate of a first and a second nozzle position; and oscillating said nozzle at a variable speed between said first and second positions such that said flow separator separates said continuous air-entrained stream of particulate powder material exiting said nozzle into first and second intermittent air-entrained streams as the nozzle crosses a plane of said flow separator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-03-24 | 2000-09-23 | 2001-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-24 | 2004-09-23 | 2005-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-24 | 2008-09-23 | 2009-03-25 | $7700.00 | Window Closed / Lapsed |