US4401475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of clearing away liquid
Assignee: Individual
•
Filing: 1982-08-25
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Granted: 1983-08-30
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Expires: 2002-08-25
Abstract
Abstract Less viscous liquids (7) such as diesel oil may be unintentionally spread on water surfaces or on the ground (6). Loose sawdust (2) or chemicals are used to clear said surfaces (6). These clearing aids (2) with the liquid (7) absorbed in them are difficult to remove. The use of cases (5) of filter material, filled with sawdust (2) provides an aid which is easy to remove when the liquid has been cleared.
Inventors
- 👤 Hans Eriksson
- 👤 Sylve Ronndahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:15
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/32; A; A47; A47L; A47L13/00; A47L13/10; B; B01; B01J; B01J20/00; B01J20/22; B01J20/28; B01J20/28014; B01J20/2805; C02; C02F; C02F1/00; C02F1/68; C02F1/681; B01J2220/00; B01J2220/40; B01J2220/48; B01J2220/4812; B01J2220/4825; B01J2220/485; F; F02; F02B; F02B3/00; F02B3/06; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
Method of utilizing a flowable absorbent material for the absorbing and clearing of liquid spills from a surface area, comprising filling said material into a plurality of cases of liquid-passing filter material, sealing said cases with the absorbent material therein to define individual cases with a volume of about 1 cm 3 to about 4 cm 3 , spreading multiple filled cases over the surface to cover the area to be cleared, allowing the cases with enclosed absorbent material to absorb the liquid to be cleared away, and removing the cases with the absorbed liquid.
Claim 2
Dependent Claim
95 words
Method of utilizing a flowable absorbent material for the absorbing and clearing of liquid spills from a surface area, comprising filling said material into a plurality of cases of liquid-passing filter material, sealing said cases with the absorbent material therein to define individual cases with a volume of about 1 cm 3 to about 4 cm 3 , spreading multiple filled cases over the surface to cover the area to be cleared, allowing the cases with enclosed absorbent material to absorb the liquid to be cleared away, and removing the cases with the absorbed liquid.
Claim 3
Dependent Claim
30 words
Method according to claim 1 wherein the removed cases are conveyed to a pressing means and the cases compressed to recover the liquid absorbed by the cases and their contents.
Claim 4
Dependent Claim
28 words
Method according to claim 2 wherein the cases with their contents, after being compressed, are supplied to a combustion means or the like for use as combustion fuel.
Claim 5
Dependent Claim
15 words
Method according to claim 1 wherein the cases with their contents are spread by blowing.
Claim 6
Dependent Claim
71 words
Method according to claim 1 wherein the filling of the absorbent material into cases involves providing an elongated gauze hosing closed at the lower end thereof, partially filling the hose and providing a pair of transverse closure seams across the hose immediately above the filling to provide a sealed case at the lower portion of the hose, and severing the hose between the closure seams to separate the sealed case therefrom.
Claim 7
Dependent Claim
19 words
Method according to claim 1 wherein each case is of such a volume that all the filler absorbs liquid.
Claim 8
Dependent Claim
93 words
Method of utilizing a flowable absorbent material for absorbing and clearing of liquid spills from a surface area, comprising filling said material into a plurality of cases of liquid-passing filter material, sealing said cases with the absorbent material therein to define individual cases with a volume sufficiently small to allow spreading of multiple filled cases over the surface to cover the area to be cleared and to allow removal of the cases therefrom in the manner of a flowable material, said filled cases, prior to removal, absorbing the liquid to be cleared away.
Claim 9
Dependent Claim
93 words
Method of utilizing a flowable absorbent material for absorbing and clearing of liquid spills from a surface area, comprising filling said material into a plurality of cases of liquid-passing filter material, sealing said cases with the absorbent material therein to define individual cases with a volume sufficiently small to allow spreading of multiple filled cases over the surface to cover the area to be cleared and to allow removal of the cases therefrom in the manner of a flowable material, said filled cases, prior to removal, absorbing the liquid to be cleared away.
Claim 10
Dependent Claim
15 words
Method according to claim 7 wherein the cases with their contents are spread by blowing.
Claim 11
Dependent Claim
71 words
Method according to claim 7 wherein the filling of the absorbent material into cases involves providing an elongated gauze hosing closed at the lower end thereof, partially filling the hose and providing a pair of transverse closure seams across the hose immediately above the filling to provide a sealed case at the lower portion of the hose, and severing the hose between the closure seams to separate the sealed case therefrom.
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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) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |