US4274676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing material
Assignee: Individual
•
Filing: 1980-01-18
•
Granted: 1981-06-23
•
Expires: 2000-01-18
Abstract
Abstract An apparatus and method for removing material from a surface so that the removed material will not escape into the ambient environment are disclosed. The present invention includes a coagulant-applying mechanism for spraying a coating of coagulant on the material to be removed. Also included is a cutter head assembly which is moved along the surface for scraping the material therefrom. So that the scraped, coagulated material may be safely withdrawn to a storage receptacle, the present invention also includes a mechanism which withdraws the loosened, coagulated particles from the cutter head assembly. The system of the present invention incorporating these elements also includes a sampling container for extracting and storing a portion of the subject material for examination thereof.
Inventors
- 👤 Nimrod T. Chapel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:50
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/22; B28D7/00; B28D7/02; G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N2001/1031; G01N2001/1037; Y; Y10; Y10T; Y10T156/00; Y10T156/19; Y10T156/1961
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
182 words
An apparatus for removing asbestos from a surface and for preventing the removed asbestos particles from escaping into the ambient environment by using a coagulant, said apparatus comprising: a housing having a cavity extending into said housing from an opening formed in the wall of said housing; spray means disposed within said housing, for applying a coating of the coagulant to the asbestos to be removed; a rotatable cutter member having a blade extending therefrom, said cutter member rotatably connected to said housing so that the blade extends through the opening when said member rotates for scraping the surface to thereby loosen the asbestos contained therein and mounting means having a biasing element for yieldably receiving said member; a trough disposed within said housing and disposed within the cavity for receiving the loosened, coagulant-coated asbestos as it is removed from the scraped surface; suction means, connected to said trough, for withdrawing the loosened, coagulant-coated asbestos therefrom; and a resilient member attached to said housing along one edge of the opening and extending outwardly of said housing for operative association with said surface.
Claim 2
Independent Claim
182 words
An apparatus for removing asbestos from a surface and for preventing the removed asbestos particles from escaping into the ambient environment by using a coagulant, said apparatus comprising: a housing having a cavity extending into said housing from an opening formed in the wall of said housing; spray means disposed within said housing, for applying a coating of the coagulant to the asbestos to be removed; a rotatable cutter member having a blade extending therefrom, said cutter member rotatably connected to said housing so that the blade extends through the opening when said member rotates for scraping the surface to thereby loosen the asbestos contained therein and mounting means having a biasing element for yieldably receiving said member; a trough disposed within said housing and disposed within the cavity for receiving the loosened, coagulant-coated asbestos as it is removed from the scraped surface; suction means, connected to said trough, for withdrawing the loosened, coagulant-coated asbestos therefrom; and a resilient member attached to said housing along one edge of the opening and extending outwardly of said housing for operative association with said surface.
Claim 3
Dependent Claim
17 words
An apparatus as recited in claim 1, wherein said spray means is of an airless spray type.
Claim 4
Dependent Claim
20 words
An apparatus as recited in claim 2, wherein said withdrawing means communicates with a receiver disposed externally of said housing.
Claim 5
Dependent Claim
16 words
An apparatus as recited in claim 1, further comprising: drive means for rotating said cutter member.
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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) | 1984-06-22 | 1984-12-22 | 1985-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-22 | 1988-12-22 | 1989-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-22 | 1992-12-22 | 1993-06-23 | $7700.00 | Window Closed / Lapsed |