US3833119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grading apparatus
Assignee: Individual
•
Filing: 1973-06-25
•
Granted: 1974-09-03
•
Expires: 1993-06-25
Abstract
Abstract A grading device for grading various objects including live fish according to size has a frame having a multiplicity of elements spaced apart therein and defining a multiplicity of passages in the frame. Superimposed outside tubes or sleeves are insertable into the frame over these elements to change the size of these passages without having to remove the frame from operative use. Also claimed is a fish growing crate consisting of four juxtaposed devices of this type.
Inventors
- 👤 R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:05
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/12; B07B13/00; B07B13/04; B07B13/07
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
189 words
A unit for sorting objects such as fish or the like according to size comprising a frame having a fixed bottom member, side members fixed to said bottom member, and a removable top supported by said side members; a plurality of spaced members fixed at one end to said bottom member and disposed substantially parallel to each other to form passages therebetween; each of said spaced members having a round outer surface throughout its length and being of the same diameter throughout its length; each of said spaced members being disposed the same distance from the adjacent of said spaced members to cause the width of each of said passages to be the same; said top having openings therein to receive the other end of each of said spaced members; fastening means to removably secure said top to at least some of said spaced members; and sleeve members adapted to slip concentrically over each of said spaced members to reduce the width of each of said passages while maintaining the width of each of said passages substantially the same, each of said sleeve members having a round Outer surface.
Claim 2
Dependent Claim
189 words
A unit for sorting objects such as fish or the like according to size comprising a frame having a fixed bottom member, side members fixed to said bottom member, and a removable top supported by said side members; a plurality of spaced members fixed at one end to said bottom member and disposed substantially parallel to each other to form passages therebetween; each of said spaced members having a round outer surface throughout its length and being of the same diameter throughout its length; each of said spaced members being disposed the same distance from the adjacent of said spaced members to cause the width of each of said passages to be the same; said top having openings therein to receive the other end of each of said spaced members; fastening means to removably secure said top to at least some of said spaced members; and sleeve members adapted to slip concentrically over each of said spaced members to reduce the width of each of said passages while maintaining the width of each of said passages substantially the same, each of said sleeve members having a round Outer surface.
Claim 3
Dependent Claim
44 words
The unit according to claim 1 in which a plurality of interfitting sleeve members can be disposed on each of said spaced members to reduce the width of each of said passages while maintaining the width of each of said passages substantially the same.
Claim 4
Dependent Claim
24 words
The unit according to claim 2 in which some of said spaced members have openings at their other ends to receive said fastening means.
Claim 5
Dependent Claim
15 words
The unit according to claim 3 in which said fastening means consist of spring clips.
Claim 6
Dependent Claim
24 words
The unit according to claim 1 in which some of said spaced members have openings at their other ends to receive said fastening means.
Claim 7
Dependent Claim
15 words
The unit according to claim 5 in which said fastening means consist of spring clips.
Claim 8
Dependent Claim
26 words
A live fish growing crate comprising a box-shaped structure including a top and a bottom and sides formed of four units as defined in claim 1.
References Cited (Backward Citations)
US1491802A
Cited
US3204605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |