US3879953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for underwater observation
Assignee: Individual
•
Filing: 1974-05-22
•
Granted: 1975-04-29
•
Expires: 1994-05-22
Abstract
Abstract A device permitting observation, visual or photograpahic, of underwater objects comprising a transparent enclosure made of plexiglass pieces, for example, fitted together in a watertight manner, for enclosing at least a portion of the object to be observed, a pump and the necessary hoses, fittings and filter to permit the environmental water in the enclosure to be pumped out and replaced with clean water from the filter. Alternatively, the environmental water may be pumped out and replaced with water from a clean-water supply source.
Inventors
- 👤 James Freeman Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:37
CPC Classifications
B; B63; B63C; B63C11/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
76 words
In the oceanic and riverine environments, a device for permitting underwater objects to be clearly observed in situ even in turbid water comprising: enclosure means for watertightly enclosing at least a portion of an underwater object which is to be observed, said enclosure means being submerged in the watery environment, the material of which the enclosure is made being transparent; and water-clearing means for removing turbid water from said enclosure and replacing it with clear water.
Claim 2
Dependent Claim
76 words
In the oceanic and riverine environments, a device for permitting underwater objects to be clearly observed in situ even in turbid water comprising: enclosure means for watertightly enclosing at least a portion of an underwater object which is to be observed, said enclosure means being submerged in the watery environment, the material of which the enclosure is made being transparent; and water-clearing means for removing turbid water from said enclosure and replacing it with clear water.
Claim 3
Dependent Claim
24 words
A device as in claim 1, wherein said enclosure is made from pieces of clear plastic which are joined together in a watertight manner.
Claim 4
Dependent Claim
87 words
A device as in claim 2, wherein said water-clearing means includes, in series, a hose fitting mounted on said enclosure, an excurrent hose connected to said hose fitting, a pump connected to said excurrent hose, a filter connected to said pump, an incurrent hose connected to said filter and a second hose fitting connected to said incurrent hose, whereby the environmental water is pumped out of said enclosure through said filter, is cleaned by said filter and then is pumped back into said enclosure as clean water.
Claim 5
Dependent Claim
44 words
A device as in claim 2, wherein said water-clearing means includes means for pumping environmental water out of said enclosure, means for coupling to a supply of clean water and means connected to said coupling means for pumping said clean water into said enclosure.
Claim 6
Dependent Claim
15 words
A device as in claim 2, wherein said enclosure is made from pieces of plexiglass.
Claim 7
Dependent Claim
43 words
A device as claimed in claim 1, further including a fitting for connecting a source of air to said encLosure, said fitting being mounted on said enclosure so that air may be pumped therethrough from the outside to the inside of said enclosure.
Claim 8
Dependent Claim
92 words
A device as in claim 1, wherein said water-clearing means includes, in series, a hose fitting mounted on said enclosure, an excurrent hose connected to said hose fitting, a pump connected to said excurrent hose, a filter connected to said pump, an incurrent hose connected to said filter and a second hose fitting mounted on said enclosure and connected to said incurrent hose, whereby the environmental water is pumped out of said enclosure through said filter, is cleaned by said filter and then is pumped back into said enclosure as clean water.
Claim 9
Dependent Claim
44 words
A device as in claim 1, wherein said water-clearing means includes means for pumping environmental water out of said enclosure, means for coupling to a supply of clean water and means connected to said coupling means for pumping said clean water into said enclosure.
Claim 10
Dependent Claim
162 words
In the oceanic and riverine environments, a device for permitting underwater objects to be clearly observed in situ even in turbid water comprising: enclosure means for watertightly enclosing at least a portion of an underwater object which is to be observed, said enclosure means being submerged in the watery environment, the material of which the enclosure is made being transparent; and water-clearing means for removing turbid water from said enclosure and replacing it with clear water, said water clearing means including, in series a hose fitting mounted on said enclosure, an excurrent hose connected to said hose fitting, a pump connected to said excurrent hose, a filter connected to said pump, an incurrent hose connected to said filter and a second hose fitting mounted on said enclosure and connected to said incurrent hose, whereby the environmental water is pumped out of said enclosure through said filter, is cleaned by said filter and then is pumped back into said enclosure as clear water.
Claim 11
Dependent Claim
162 words
In the oceanic and riverine environments, a device for permitting underwater objects to be clearly observed in situ even in turbid water comprising: enclosure means for watertightly enclosing at least a portion of an underwater object which is to be observed, said enclosure means being submerged in the watery environment, the material of which the enclosure is made being transparent; and water-clearing means for removing turbid water from said enclosure and replacing it with clear water, said water clearing means including, in series a hose fitting mounted on said enclosure, an excurrent hose connected to said hose fitting, a pump connected to said excurrent hose, a filter connected to said pump, an incurrent hose connected to said filter and a second hose fitting mounted on said enclosure and connected to said incurrent hose, whereby the environmental water is pumped out of said enclosure through said filter, is cleaned by said filter and then is pumped back into said enclosure as clear water.
Claim 12
Dependent Claim
24 words
A device as in claim 9, wherein said enclosure is made from pieces of clear plastic which are joined together in a watertight manner.
Claim 13
Dependent Claim
24 words
A device as in claim 9, wherein said enclosure is made from pieces of clear fiberglass which are joined together in a watertight manner.
Claim 14
Dependent Claim
113 words
In the oceanic and riverine environments, a device for permitting underwater objects to be clearly observed in situ even in turbid water comprising: enclosure means for watertightly enclosing at least a portion of an underwater object which is to be observed, said enclosure means being submerged in the watery environment, the material of which the enclosure is made being transparent; and water-clearing means for removing turbid water from said enclosure and replacing it with clear water, said water-clearing means including means for pumping environmental water out of said enclosure, means for coupling to a supply of clean water and means connected to said coupling means for pumping said clean water into said enclosure.
Claim 15
Dependent Claim
113 words
In the oceanic and riverine environments, a device for permitting underwater objects to be clearly observed in situ even in turbid water comprising: enclosure means for watertightly enclosing at least a portion of an underwater object which is to be observed, said enclosure means being submerged in the watery environment, the material of which the enclosure is made being transparent; and water-clearing means for removing turbid water from said enclosure and replacing it with clear water, said water-clearing means including means for pumping environmental water out of said enclosure, means for coupling to a supply of clean water and means connected to said coupling means for pumping said clean water into said enclosure.
Claim 16
Dependent Claim
24 words
A device as in claim 12, wherein said enclosure is made from pieces of clear plastic which are joined together in a watertight manner.
Claim 17
Dependent Claim
24 words
A device as in claim 12, wherein said enclosure is made from pieces of clear fiberglass which are joined together in a watertight manner.
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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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |