US4817644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for the safe and effective, large scale removal and disposal of hazardous materials from building components
Assignee: Envirosafe Corp
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Filing: 1986-10-17
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Granted: 1989-04-04
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Expires: 2006-10-17
Abstract
Abstract New and improved apparatus and method for the safe and effective, large scale removal and disposal of hazardous materials, for example frianble asbestos-containing materials, from building components are provided; and comprise a sheet-like body member, and one or more generally elongate closed-ended chutes operatively connected to the body member. The body member and chute(s) are made of non-rigid materials which are impervious to the hazardous materials. In use, the body member is sealed around the building component in question to enclose the same, the hazardous material removed from the thusly enclosed component for containment in the enclosure, and moved therefrom into and through the chute(s) for periodic packaging and disposal therewith through the sealing and cutting of successive chute portions.
Inventors
- 👤 Richard W. Holmes
- 👤 Jaime A. Escobar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:40
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/02; B08B15/026
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
311 words
An apparatus for the removal and disposal of hazardous materials from a region of a structure containing said hazardous materials, said apparatus comprising: (a) a sheet of non-rigid material which is impervious to said hazardous material, said sheet being sized and shaped for forming an enclosure about said region, said enclosure being for containing said hazardous material and being impervious thereto; said sheet having dimensions of sufficient size so that said region enclosed by said enclosure contains quantities of hazardous material having a mass which, when removed from said region of said structure enclosed by said enclosure would interfere with further removal of hazardous material if said hazardous material remained in said enclosure; (b) removal means for facilitating removal of said hazardous material from said structure, said removal means being operated within said enclosure from outside said enclosure; (c) chute means having a volume at least sufficient for containing said hazardous material removed from said structure by said removal means, said chute means being formed of a nonrigid material which is impervious to said hazardous material, said chute means being permanently attached to said sheet and extending therefrom so that interior portions of said enclosure formed by said sheet are in communication with interior portions of said chute means, said chute means being sized, shaped and positioned along said sheet so that said hazardous material removed from said region by said removal means is movable directly from said enclosure into said chute means and a disposal means, said disposal means being a part of said chute means most remote from said enclosure, said disposal means of said chute means being separable from a remaining portion of said chute means so that said disposal means and said remaining portion remain sealed, and so that a sealed disposal means is disposable independently of said sheet and said remaining portion of said chute means.
Claim 2
Independent Claim
311 words
An apparatus for the removal and disposal of hazardous materials from a region of a structure containing said hazardous materials, said apparatus comprising: (a) a sheet of non-rigid material which is impervious to said hazardous material, said sheet being sized and shaped for forming an enclosure about said region, said enclosure being for containing said hazardous material and being impervious thereto; said sheet having dimensions of sufficient size so that said region enclosed by said enclosure contains quantities of hazardous material having a mass which, when removed from said region of said structure enclosed by said enclosure would interfere with further removal of hazardous material if said hazardous material remained in said enclosure; (b) removal means for facilitating removal of said hazardous material from said structure, said removal means being operated within said enclosure from outside said enclosure; (c) chute means having a volume at least sufficient for containing said hazardous material removed from said structure by said removal means, said chute means being formed of a nonrigid material which is impervious to said hazardous material, said chute means being permanently attached to said sheet and extending therefrom so that interior portions of said enclosure formed by said sheet are in communication with interior portions of said chute means, said chute means being sized, shaped and positioned along said sheet so that said hazardous material removed from said region by said removal means is movable directly from said enclosure into said chute means and a disposal means, said disposal means being a part of said chute means most remote from said enclosure, said disposal means of said chute means being separable from a remaining portion of said chute means so that said disposal means and said remaining portion remain sealed, and so that a sealed disposal means is disposable independently of said sheet and said remaining portion of said chute means.
Claim 3
Dependent Claim
62 words
The apparatus of claim 1 wherein said chute means has a length sufficient so that when said disposal means is separated from the remaining portion of said chute means, said remaining portion defines at least one additional disposal means, said at least one additional disposal means being a part of said remaining portion of said chute means most remote from said enclosure.
Claim 4
Dependent Claim
43 words
The apparatus of claim 1, wherein said chute means is sized, shaped and positioned and said removal means are positioned along said sheet so that said removal means is usable to facilitate moving said hazardous material from said enclosure to said chute means.
Claim 5
Dependent Claim
30 words
The apparatus of claim 1, wherein said chute means is positioned along said enclosure so that gravity assists in moving said hazardous material from said enclosure into said chute means.
Claim 6
Dependent Claim
24 words
The apparatus of claim 1, wherein said chute means has a cross sectional dimension smaller than that of said enclosure defined by said sheet.
Claim 7
Dependent Claim
20 words
The apparatus of claim 1, wherein said chute means has a length at least as great that of said sheet.
Claim 8
Dependent Claim
53 words
The apparatus of claim 1, wherein said chute means is of a length sufficient so that at least a portion of said chute means is supported by a substantially horizontal support means adjacent said structure, so that weight of said hazardous material in said chute means is supported by said horizontal support means.
Claim 9
Dependent Claim
39 words
The apparatus of claim 1, further comprising fastening means for fastening edges of said sheet adjacent to said regions of said structure containing said hazardous material so that said enclosure is formed to be impervious to said hazardous material.
Claim 10
Dependent Claim
21 words
The apparatus of claim 8, wherein said fastening means fastens a portion of said sheet to other portions of said sheet.
Claim 11
Dependent Claim
55 words
The apparatus of claim 1, further comprising sealing means, said sealing means being for sealing said chute means at a sealing region along the length of said chute means to define said disposal means on one side of said sealing region and said remaining portion of said chute means to another side of sealing region.
Claim 12
Dependent Claim
26 words
The apparatus of claim 1, wherein said chute means comprises at least one chute extending from said sheet, said at least one chute being substantially tubular.
Claim 13
Dependent Claim
14 words
The apparatus of claim 11, wherein said at least one chute is substantially cylindrical.
Claim 14
Dependent Claim
20 words
The apparatus of claim 11, wherein said at least one chute extends from said sheet substantially centrally of said sheet.
Claim 15
Dependent Claim
19 words
The apparatus of claim 1, wherein said chute means extends from said sheet adjacent an edge of said sheet.
Claim 16
Dependent Claim
64 words
The apparatus of claim 1, further comprising second chute means formed of a non-rigid material which is impervious to said hazardous material, said second chute means being connectable to said first chute means so that interior portions of said first chute means are in communication with interior portions of said second chute means, to form an extended chute means impervious to said hazardous material.
Claim 17
Dependent Claim
38 words
The apparatus of claim 1 further comprising, filter means operatively connected to said enclosure and operative to enable passage of air therethrough into and out of said enclosure, while preventing passage of hazardous materials out of said enclosure.
Claim 18
Dependent Claim
56 words
The apparatus of claim 16, further comprising vacuum means connected to said enclosure for removing air from said enclosure when said hazardous material is being removed, so that ambient air is drawn into said enclosure through said filter means and withdrawn from said enclosure by said vacuum means, thereby removing airborne hazardous material from said enclosure.
Claim 19
Dependent Claim
18 words
The apparatus of claim 1, wherein said sheet and said chute means are formed of a transparent material.
Claim 20
Dependent Claim
52 words
The apparatus of claim 1, wherein said removal means comprises glove means, said glove means extending from said sheet and connected therewith in a manner impervious to the hazardous material and defining a part of said enclosure, said glove means being shaped to receive hands of a worker exterior of said enclosure.
Claim 21
Dependent Claim
182 words
A process for the removal of hazardous material from a region of a structure comprising the steps of: (a) enclosing said region with a non-rigid sheet of a material impervious to said hazardous material to form an enclosure impervious to said hazardous material; (b) removing the hazardous material from said region by using a removal means within said enclosure operated from outside said enclosure; (c) moving the hazardous material from said enclosure into an elongate chute having an interior portion in communication with an interior portion of said enclosure; said material being moved to a disposal region of said chute most remote from said enclosure; (d) sealing said removed hazardous material in said disposal region of said chute so that said disposal region and the reminder of said chute are both sealed; (e) separating said disposal region of said chute from said remaining portion of said chute so that said disposal region and the remainder of said chute both remain sealed; and (f) disposing of said disposal region of said chute independently of said enclosure and said remaining portion of said chute.
Claim 22
Dependent Claim
182 words
A process for the removal of hazardous material from a region of a structure comprising the steps of: (a) enclosing said region with a non-rigid sheet of a material impervious to said hazardous material to form an enclosure impervious to said hazardous material; (b) removing the hazardous material from said region by using a removal means within said enclosure operated from outside said enclosure; (c) moving the hazardous material from said enclosure into an elongate chute having an interior portion in communication with an interior portion of said enclosure; said material being moved to a disposal region of said chute most remote from said enclosure; (d) sealing said removed hazardous material in said disposal region of said chute so that said disposal region and the reminder of said chute are both sealed; (e) separating said disposal region of said chute from said remaining portion of said chute so that said disposal region and the remainder of said chute both remain sealed; and (f) disposing of said disposal region of said chute independently of said enclosure and said remaining portion of said chute.
Claim 23
Dependent Claim
39 words
The process of claim 20, wherein said step of enclosing said region includes enclosing a region having a quantity of hazardous material sufficient to interfere with further removal of hazardous material if said hazardous material remains in said enclosure.
Claim 24
Dependent Claim
15 words
The process of claim 20, further comprising repeating steps (b) to (f) at least once.
Claim 25
Dependent Claim
33 words
The process of claim 20, further comprising the step of supporting said chute independently of said sheet so that weight of removed hazardous material in said chute is not supported by said enclosure.
Claim 26
Dependent Claim
27 words
The process of claim 20, further comprising the step of drawing ambient air through said enclosure so that airborne hazardous materials in said enclosure are removed therefrom.
Claim 27
Dependent Claim
40 words
The method of claim 20, further comprising the step of connecting a second chute to said first chute so that interior portions of said first chute are in connection with portions of said second chute impervious to said hazardous material.
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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) | 1992-04-03 | 1992-10-03 | 1993-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-03 | 1996-10-03 | 1997-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-03 | 2000-10-03 | 2001-04-04 | $7700.00 | Window Closed / Lapsed |