US3683854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating viable fish eggs from non-fertilized eggs
Assignee: OCEANOGRAPHY MARICULTURE IND
•
Filing: 1970-09-17
•
Granted: 1972-08-15
•
Expires: 1990-09-17
Abstract
Abstract The property of certain marine fish eggs to become buoyant when they are fertilized is utilized by placing such eggs in a container having an upper portion with a water permeable wall, a lower funnel-shaped portion removably secured to the upper portion and a buoyant collar for floating the container in a body of water with the water permeable wall disposed below the water level therein. After fertilization occurs, the buoyant viable eggs may be kept in the upper portion of the container afloat in the water while the funnel-shaped lower portion is removed for separating the unfertilized eggs collected therein.
Inventors
- 👤 Raymond H Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:45
CPC Classifications
A; A01; A01K; A01K61/00; A01K61/90
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
75 words
An apparatus for separating viable fish eggs from nonfertilized eggs, comprising: a housing having a water permeable wall, a receptacle removably secured to said housing being open at its ends and decreasing in cross-sectional area from one end to the other, with the larger end thereof being secured to said housing and opening thereinto, means for selectively closing the other end of said recepTacle, and, means for floating said housing and said receptacle in water.
Claim 2
Independent Claim
75 words
An apparatus for separating viable fish eggs from nonfertilized eggs, comprising: a housing having a water permeable wall, a receptacle removably secured to said housing being open at its ends and decreasing in cross-sectional area from one end to the other, with the larger end thereof being secured to said housing and opening thereinto, means for selectively closing the other end of said recepTacle, and, means for floating said housing and said receptacle in water.
Claim 3
Dependent Claim
14 words
The apparatus set forth in claim 1, wherein said receptacle is a conical funnel.
Claim 4
Dependent Claim
36 words
The apparatus set forth in claim 1, wherein said housing is tubular in configuration and said receptacle is a conical funnel, and said housing and said receptacle are secured together by engagement of threaded portions thereon.
Claim 5
Dependent Claim
59 words
The apparatus set forth in claim 1, wherein said housing is tubular in configuration and is threaded at one end, said receptacle is a conical funnel threaded at its large end for being engaged with said housing threads, and said floating means is a buoyant member secured to the end portion of said housing opposite said threaded end thereof.
Claim 6
Dependent Claim
24 words
The apparatus set forth in claim 4, wherein said buoyant member is an annular collar affixed to the outer wall of said tubular housing.
Claim 7
Dependent Claim
18 words
The apparatus set forth in claim 5, wherein said buoyant collar is constructed from a foamed plastic material.
Claim 8
Dependent Claim
16 words
The apparatus set forth in claim 4, wherein said buoyant member is constructed of foamed polystyrene.
Claim 9
Dependent Claim
31 words
The apparatus set forth in claim 4, wherein said water permeable wall of said housing includes a fine nylon mesh screen forming at least part of the tubular wall surface thereof.
Claim 10
Independent Claim
87 words
An apparatus for separating viable fish eggs from non-fertilized eggs, comprising, in combination: a tubular housing having at least part of its wall being constructed of a water permeable material, and being threaded at one end; a funnel-shaped and open-ended receptacle being threaded at the largest open end thereof for threadably connecting the same to said tubular housing; a collar of buoyant foamed plastic material adhesively secured to the other end of said tubular housing; and, a plug for closing the smallest open end of said receptacle.
Claim 11
Independent Claim
87 words
An apparatus for separating viable fish eggs from non-fertilized eggs, comprising, in combination: a tubular housing having at least part of its wall being constructed of a water permeable material, and being threaded at one end; a funnel-shaped and open-ended receptacle being threaded at the largest open end thereof for threadably connecting the same to said tubular housing; a collar of buoyant foamed plastic material adhesively secured to the other end of said tubular housing; and, a plug for closing the smallest open end of said receptacle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |