초록 ▼

A mobile environmental containment unit has an upper frame with a sealing surface, a flexible, transparent impermeable envelope with an open top and one or more access openings that depends from the upper frame, and a lower frame that is supported by the envelope. The upper frame of the unit is supp

A mobile environmental containment unit has an upper frame with a sealing surface, a flexible, transparent impermeable envelope with an open top and one or more access openings that depends from the upper frame, and a lower frame that is supported by the envelope. The upper frame of the unit is supported by telescoping support members with the sealing surface of the upper frame and the open top of the envelope fitted against a portion of a ceiling which is accessible by a workman via the one or more access openings and the open top of the envelope.

대표청구항 ▼

1. A mobile environmental containment unit, comprising: an upper frame having an open top;a first and second support extending from said upper frame, the first and second support each attached to the upper frame by a plurality of attachment portions;a flexible, transparent impermeable envelope depen

1. A mobile environmental containment unit, comprising: an upper frame having an open top;a first and second support extending from said upper frame, the first and second support each attached to the upper frame by a plurality of attachment portions;a flexible, transparent impermeable envelope depending from the upper frame and having an open top and at least one access opening; anda lower frame supported by the envelope, said upper frame and flexible, transparent impermeable envelope together defining a top opening in the mobile environmental containment unit, wherein each of the first and second supports is attached to a flat foot plate, each flat foot plate is at least three times the cross-section of the support the foot plate is attached to and increases contact surface with the ground while the mobile environmental containment unit is in use, increasing the stability of the mobile environmental containment unit. 2. A mobile environmental containment unit, comprising: an upper frame having an open top;a first and second support extending from said upper frame, the first and second support each attached to the upper frame by a plurality of attachment portions;a flexible, transparent impermeable envelope depending from the upper frame and having an open top and at least one access opening; anda lower frame supported by the envelope, said upper frame and flexible, transparent impermeable envelope together defining a top opening in the mobile environmental containment unit, wherein the plurality of attachment portions include a first and second attachment portion, and wherein the first and second attachment portion each extend from a common point relative to the respective support portion and form a v-shape. 3. A mobile environmental containment unit, comprising: an upper frame having an open top;a first and second support extending from said upper frame, the first and second support each attached to the upper frame by a plurality of attachment portions;a flexible, transparent impermeable envelope depending from the upper frame and having an open top and at least one access opening; anda lower frame supported by the envelope, said upper frame and flexible, transparent impermeable envelope together defining a top opening in the mobile environmental containment unit, wherein the plurality of attachment portions include a first and second attachment portion, and wherein the first and second attachment portion each extend from a common point relative to the respective support portion and form a v-shape, wherein the first and second attachment portion are separated when attached to the upper frame. 4. A mobile environmental containment unit, comprising: an upper frame having an open top;a first and second support extending from said upper frame, the first and second support each attached to the upper frame by a first and second attachment portion extending from a common point relative to the respective support portion forming a v-shape and separated where attached to the upper frame;a flexible, transparent impermeable envelope depending from the upper frame and having an open top and at least one access opening; anda lower frame supported by the envelope, said upper frame and flexible, transparent impermeable envelope together defining a top opening in the mobile environmental containment unit. 5. The mobile environmental containment unit of claim 4, wherein the upper frame further comprises opposing front and back upper frame members and opposing side upper frame members defining a substantially rectangular shaped upper frame. 6. The mobile environmental containment unit of claim 5, wherein the first and second supports extend respectfully from opposing upper side frame members. 7. The mobile environmental containment unit of claim 6, wherein each of the first and second supports further comprises a telescoping support member. 8. The mobile environmental containment unit of claim 7, wherein each of the telescoping support members is detachable from the upper frame. 9. The mobile environmental containment unit of claim 4, wherein the upper frame further comprises an upper sealing surface. 10. The mobile environmental containment unit of claim 4, wherein the envelope further comprises a collapsible envelope. 11. The mobile environmental containment unit of claim 10, wherein the upper and lower frames are spaced apart from one another in an uncollapsed condition of the envelope and moved toward one another in a collapsed condition of the envelope. 12. The mobile environmental containment unit of claim 4, wherein the envelope is a substantially parallelepipedal shaped envelope. 13. The mobile environmental containment unit of claim 12, wherein the parallelepipedal shaped envelope further comprises opposing front and back panels, opposing side panels, and a bottom panel. 14. The mobile environmental containment unit of claim 13, wherein the at least one access opening further comprises a pair of hand access openings formed in the front panel. 15. The mobile environmental containment unit of claim 14, wherein each hand access opening of the pair of hand access openings further comprises a sleeve. 16. The mobile environmental containment unit of claim 15, wherein each sleeve is elasticized. 17. The mobile environmental containment unit of claim 13, wherein the at least one access opening further comprises an openable doorway formed in the front panel. 18. The mobile environmental containment unit of claim 13, further comprising an openable portion formed in the bottom panel. 19. The mobile environmental containment unit of claim 13, further comprising a port formed in the bottom panel for attaching a negative air pressure source. 20. The mobile environmental containment unit of claim 19, wherein the port further comprises a sleeve. 21. The mobile environmental containment unit of claim 20, wherein the sleeve further comprises a drawstring. 22. The mobile environmental containment unit of claim 4, wherein the lower frame is supported within the envelope. 23. The mobile environmental containment unit of claim 4, wherein the lower frame further comprises opposing front and back lower frame members and opposing lower side frame members defining a substantially rectangular shaped lower frame. 24. The mobile environmental containment unit of claim 4, wherein the plurality of attachment portions include a first and second attachment portion, wherein the first and second attachment portion on each support are separated when attached to the upper frame.