Patent US5324429A successfully refreshed from Google Patents.
US5324429A
Expired / Lapsed
US
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Bilge oil absorber and solidifier
Assignee: Individual
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Filing: 1993-04-19
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Granted: 1994-06-28
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Expires: 2013-04-19
Abstract
Abstract A pillow for placement in enclosed areas utilized to collect and contain spilled or leaked hydrocarbons such as boat bilges and sumps absorbs pollutants that come in contact. The absorbed material is solidified within the pillow into a rubber-like mass. The consolidated mass will float indefinitely and is easily retrieved and handled for disposal. The pillow will not leech solidified hydrocarbons when exposed to pressure limits used to determine landfill suitability.
Inventors
- 👤 Herbert W. Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:15
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A hydrocarbon absorbent device comprising an outer envelope of polypropylene fabric; a plurality of stacked layers of polypropylene fabric disposed within the envelope and forming a plurality of chambers in stratification with each of said chambers containing polynorbornene therein, said plurality of stacked fabric layers dispersively conducting liquid hydrocarbons under capillary attraction throughout the interior of the envelope for absorption and solidification by the polynorbornene material; a seam joinder of the envelope and the stacked layers.
Claim 2
Dependent Claim
76 words
A hydrocarbon absorbent device comprising an outer envelope of polypropylene fabric; a plurality of stacked layers of polypropylene fabric disposed within the envelope and forming a plurality of chambers in stratification with each of said chambers containing polynorbornene therein, said plurality of stacked fabric layers dispersively conducting liquid hydrocarbons under capillary attraction throughout the interior of the envelope for absorption and solidification by the polynorbornene material; a seam joinder of the envelope and the stacked layers.
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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) | 1997-06-27 | 1997-12-27 | 1998-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-27 | 2001-12-27 | 2002-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-27 | 2005-12-27 | 2006-06-28 | $7700.00 | Window Closed / Lapsed |