Patent US3589276A successfully refreshed from Google Patents.
US3589276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Destruction device for hospitals
Assignee: Electrolux AB
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Filing: 1969-11-28
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Granted: 1971-06-29
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Expires: 1989-11-28
Abstract
Abstract A destruction device for hospitals, especially for destruction of expendable articles made of e.g. glass, plastic material, paper and metal, comprising a grinding device for grinding the articles between mutually rotating discs into small particles, as powder, and passing the powder under the influence of centrifugal force to a device for heat sterilization of said powder and for compressing said sterilized powder to briquettes.
Inventors
- 👤 Sven Arild Swallert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:30
CPC Classifications
A; A61; A61L; A61L11/00; A61L2/00; A61L2/02; A61L2/04; B; B03; B03B; B03B9/00; B03B9/06; B03B9/061; B03B9/062; B09; B09B; B09B3/00; B09B3/30; B09B3/32; B09B3/35; B30; B30B; B30B9/00; B30B9/30; B30B9/3003; B30B9/3035; B09B2101/00; B09B2101/65; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/60; Y10; Y10S; Y10S241/00; Y10S241/606
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
177 words
A destruction device for hospitals, especially for destruction of expendable articles, as articles made of glass, plastic material, paper and metal, comprising a Grinding device including two cylindrical discs positioned coaxially with respect to each other and presenting two interspaced grinding surfaces facing each other, means to rotatably journal at least one of said discs, means to rotate said disc, a casing surrounding said discs, a charging opening in the central portion of one of said discs, and a discharging opening in said casing at the periphery of said interspace between said discs, a compressing device including a vertical cylinder, a bottom plate, a piston, means to move said piston up and down in said cylinder, a charging opening in the wall of said cylinder, means connecting said charging opening of said cylinder with said discharging opening of said casing, means to heat the interior of said cylinder, a discharging opening in the wall of said cylinder and means movable laterally across the interior of said cylinder in line with said discharging opening of said cylinder wall.
Claim 2
Dependent Claim
177 words
A destruction device for hospitals, especially for destruction of expendable articles, as articles made of glass, plastic material, paper and metal, comprising a Grinding device including two cylindrical discs positioned coaxially with respect to each other and presenting two interspaced grinding surfaces facing each other, means to rotatably journal at least one of said discs, means to rotate said disc, a casing surrounding said discs, a charging opening in the central portion of one of said discs, and a discharging opening in said casing at the periphery of said interspace between said discs, a compressing device including a vertical cylinder, a bottom plate, a piston, means to move said piston up and down in said cylinder, a charging opening in the wall of said cylinder, means connecting said charging opening of said cylinder with said discharging opening of said casing, means to heat the interior of said cylinder, a discharging opening in the wall of said cylinder and means movable laterally across the interior of said cylinder in line with said discharging opening of said cylinder wall.
Claim 3
Dependent Claim
18 words
A destruction device as claimed in claim 1, wherein said grinding surfaces are provided with hard carbide teeth.
Claim 4
Dependent Claim
40 words
A destruction device as claimed in claim 1, comprising a housing surrounding said grinding device and said compressing device, means to evacuate air from said housing and means to heat the air evacuated from said housing to a sterilization temperature.
Claim 5
Dependent Claim
18 words
A destruction device as claimed in claim 3, wherein said grinding surfaces are provided with hard carbide teeth.
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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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |