US3740557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gamma-irradiation apparatus for granular materials of biological origin
Assignee: Individual
•
Filing: 1970-05-27
•
Granted: 1973-06-19
•
Expires: 1990-05-27
Abstract
Abstract A gamma-irradiation apparatus for granular materials of biological origin, comprising an irradiator and an irradiation chamber located in a shielding enclosre, in which there is a rotating shaft arranged along the longitudinal axis of the apparatus and passing through the center of the chamber and having shielding elements which together with the annular shielding projections of said enclosure form respective inlet and outlet labyrinths. The apparatus is intended for use primarily in farming, to irradiate seeds prior to sowing.
Inventors
- 👤 D Kalyanov
- 👤 B Zhukov
- 👤 R Srapeniants
- 👤 D Kaushansky
- 👤 Y Gurevich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
G; G21; G21K; G21K5/00; G21K5/02; Y; Y10; Y10S; Y10S47/00; Y10S47/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
A gamma-irradiation apparatus for granular materials of biological origin, comprising: a vertically disposed elongated shielding enclosure having an inlet opening at the upper end thereof for granular materials and an outlet opening at the lower end thereof; an irradiator including a plurality of sources of ionizing radiation, annularly disposed within said shielding enclosure; an irradiation chamber located in said shielding enclosure; a shaft carried by bearing means in said shielding enclosure and passing through the center of said irradiation chamber and along the longitudinal axis of said apparatus; shielding elements mounted on the opposite ends of said shaft; annular shielding projections respectively located near the inlet and outlet openings of said shielding enclosure, said shielding elements together with said shielding projections forming an inlet and an outlet labyrinth.
Claim 2
Dependent Claim
128 words
A gamma-irradiation apparatus for granular materials of biological origin, comprising: a vertically disposed elongated shielding enclosure having an inlet opening at the upper end thereof for granular materials and an outlet opening at the lower end thereof; an irradiator including a plurality of sources of ionizing radiation, annularly disposed within said shielding enclosure; an irradiation chamber located in said shielding enclosure; a shaft carried by bearing means in said shielding enclosure and passing through the center of said irradiation chamber and along the longitudinal axis of said apparatus; shielding elements mounted on the opposite ends of said shaft; annular shielding projections respectively located near the inlet and outlet openings of said shielding enclosure, said shielding elements together with said shielding projections forming an inlet and an outlet labyrinth.
Claim 3
Dependent Claim
26 words
A gamma-irradiation apparatus, as claimed in claim 1, in which said shaft inside said irradiation chamber has a hollow portion which holds an additional radiation source.
Claim 4
Dependent Claim
33 words
A gamma-irradiation apparatus, as claimed in claim 1, in which said source of ionizing radiation are arranged inside said irradiation chamber and have shielding jackets to prevent damage to the material being irradiated.
Claim 5
Dependent Claim
29 words
A gamma-irradiation apparatus, as claimed in claim 1, in which said outlet labyrinth has a tapering damper mounted on said shaft so as to be movable along said shaft.
Claim 6
Dependent Claim
63 words
A gamma-irradiation apparatus, as claimed in claim 1, in which said outlet labyrinth has a damper made fast to said shaft, while said annular shielding projection associated with said outlet opening in said outlet labyrinth is provided on said enclosure so that it can be shifted along the axis of the shaft, forming together with the damper an annular outlet of varying cross-section.
Claim 7
Dependent Claim
18 words
A gamma-irradiation unit, as claimed in claim 1, in which said shielding elements are made tapering in shape.
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |