Patent US3907685A successfully refreshed from Google Patents.
US3907685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt device for collecting floating matter from water surface
Assignee: Bridgestone Corp
•
Filing: 1974-07-08
•
Granted: 1975-09-23
•
Expires: 1994-07-08
Abstract
Abstract A belt device for collecting floating matter from a water surface comprising a pair of pulleys, one of which being arranged above the water surface and the other pulley being arranged below the water surface, and an endless belt loosely engaged with the pulleys and having a lower loosening portion inclined from a relative direction of water flow by an acute angle.
Inventors
- 👤 Kuninori Aramaki
- 👤 Hiroshi Kawakami
- 👤 Masao Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:53
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/104; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0214; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
APPARATUS FOR COLLECTING MATERIALS FROM THE SURFACE OF A BODY OF WATER, SAID APPARATUS COMPRISING: A FLOATING VESSEL SUPPORTING AN ENDLESS BELT CONSTRUCTED AND ARRANGED ON SAID VESSEL SO THAT AN UPPER ROLLER OF SAID ENDLESS BELT IS ABOVE THE SURFACE OF SAID BODY OF WATER AND THE LOWER ROLLER OF SAID BELT IS BENEATH THE SURFACE OF SAID BODY OF WATER, SAID ENDLESS BELT HAVING AN UPPER RUN AND A LOWER RUN, DRIVE MEANS FOR SAID ENDLESS BELT COMPRISING DRIVE ROLLERS PRESSING THE SURFACE OF SAID BELT AGAINST THE UPPER AND LOWER ROLLERS TO RETAIN SAID ENDLESS BELT ON ITS LOWER ROLLER AND TO DRIVE THE UPPER RUN OF SAID BELT OVER THE UPPER ROLLER, WHEREBY THE LOWER RUN OF SAID BELT IS SUBSTANTIALLY LONGER THAN THE DISTANCE BETWEEN SAID UPPER AND LOWER ROLLERS.
Claim 2
Dependent Claim
135 words
APPARATUS FOR COLLECTING MATERIALS FROM THE SURFACE OF A BODY OF WATER, SAID APPARATUS COMPRISING: A FLOATING VESSEL SUPPORTING AN ENDLESS BELT CONSTRUCTED AND ARRANGED ON SAID VESSEL SO THAT AN UPPER ROLLER OF SAID ENDLESS BELT IS ABOVE THE SURFACE OF SAID BODY OF WATER AND THE LOWER ROLLER OF SAID BELT IS BENEATH THE SURFACE OF SAID BODY OF WATER, SAID ENDLESS BELT HAVING AN UPPER RUN AND A LOWER RUN, DRIVE MEANS FOR SAID ENDLESS BELT COMPRISING DRIVE ROLLERS PRESSING THE SURFACE OF SAID BELT AGAINST THE UPPER AND LOWER ROLLERS TO RETAIN SAID ENDLESS BELT ON ITS LOWER ROLLER AND TO DRIVE THE UPPER RUN OF SAID BELT OVER THE UPPER ROLLER, WHEREBY THE LOWER RUN OF SAID BELT IS SUBSTANTIALLY LONGER THAN THE DISTANCE BETWEEN SAID UPPER AND LOWER ROLLERS.
Claim 3
Dependent Claim
42 words
A belt device as claimed in claim 1, wherein an angle ( theta ) made between said lower run and a tangential line from the upper roller directed perpendicular to the water surface satisfy the following equation: 5* < theta < 35*
Claim 4
Dependent Claim
25 words
A belt device as claimed in claim 1, wherein said endless belt has a total apparent specific gravity smaller than the specific gravity of water.
Claim 5
Dependent Claim
18 words
A belt device as claimed in claim 3, wherein said apparent specific gravity is not more than 1.
Claim 6
Dependent Claim
28 words
A belt device as claimed in claim 3, wherein said apparent specific gravity is not more than 0.7 which is less than the specific gravity of light oil.
Claim 7
Dependent Claim
34 words
A belt device as claimed in claim 1, wherein said belt is formed by covering a belt-shaped and closed-cell flexible foamed body with a rubbery elastomer layer including at least one reinforcing layer therein.
Claim 8
Dependent Claim
33 words
A belt device as claimed in claim 6, wherein said belt is formed by providing a plurality of fins on the outer surface of the rubbery elastomer layer in the width direction thereof.
Claim 9
Dependent Claim
41 words
A belt device as claimed in claim 1, wherein said belt is formed by sandwiching an intermediate rubbery elastomer layer including a reinforcing layer therein between two closed-cell flexible foamed body layers and covering the latter layers with rubbery elastomer layers.
Claim 10
Dependent Claim
39 words
A belt device as claimed in claim 1, wherein said belt is formed by embedding a reinforcing layer in a main belt-shaped rubber layer and adhering a closed-cell flexible foamed body layer to the surface of said main layer.
References Cited (Backward Citations)
US3096279A
Cited
US3227281A
Cited
US3314540A
Cited
US3508663A
Cited
US3800951A
Cited
US3695451A
Cited
US3637080A
Cited
US3804251A
Cited
US3812968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |