US5042683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Containment storage apparatus
Assignee: ENPAC LLC
•
Filing: 1990-05-25
•
Granted: 1991-08-27
•
Expires: 2010-05-25
Abstract
Abstract A secondary containment apparatus for use in combination with primary containers for hazardous wastes such as drums or large barrels, comprising a generally rectangular base member and two generally rectangular lid members of a size sufficient to enclose one or more primary containers. The lid members are moveable only laterally in relation to the base member, the lateral movement allowing access to the drums contained within. The lid members have interlocking means to form a releasable closure, and have engagement means for attachment to the base member. The base member is impermeable to liquids, and is preferably composed of translucent plastic for visual inspection.
Inventors
- 👤 Mark D. Shaw
- 👤 J. Tad Heyman
- 👤 Laurence M. Bierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:33
CPC Classifications
B; B65; B65F; B65F1/00; B65F1/14; B65F1/16; B65D; B65D43/00; B65D43/14; B65D43/20
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
208 words
A secondary containment apparatus used in combination with one or more primary storage drums, comprising: (A) a generally rectangular base member having a bottom, end walls and side walls defining a space to receive said storage drums, said base member having a generally C-shaped rail member and said base member being impermeable to liquids; (B) two generally rectangular lid members each having a top, side walls and an end wall, said lid members having interlocking means to releasably interlock said lid members to each other, said interlocking means comprising an internal lip on one of said lid members and an external lip on the other of said lid members, where said internal lip fits within said external lip to form a retaining seal when said lid members are interlocked; said internal lip comprising a large ridge, a plateau portion and a smaller latching ridge, and said external lip comprising a large ridge, a plateau portion and an open ridge; said lid members further having generally C-shaped engagement means enclosing said rail member to slidingly engage said lid members with said base member, whereby said lid members, when engaged with said base member and when interlocked with each other, define a closed space to completely enclose said storage drums.
Claim 2
Dependent Claim
208 words
A secondary containment apparatus used in combination with one or more primary storage drums, comprising: (A) a generally rectangular base member having a bottom, end walls and side walls defining a space to receive said storage drums, said base member having a generally C-shaped rail member and said base member being impermeable to liquids; (B) two generally rectangular lid members each having a top, side walls and an end wall, said lid members having interlocking means to releasably interlock said lid members to each other, said interlocking means comprising an internal lip on one of said lid members and an external lip on the other of said lid members, where said internal lip fits within said external lip to form a retaining seal when said lid members are interlocked; said internal lip comprising a large ridge, a plateau portion and a smaller latching ridge, and said external lip comprising a large ridge, a plateau portion and an open ridge; said lid members further having generally C-shaped engagement means enclosing said rail member to slidingly engage said lid members with said base member, whereby said lid members, when engaged with said base member and when interlocked with each other, define a closed space to completely enclose said storage drums.
Claim 3
Dependent Claim
13 words
The apparatus of claim 1, further comprising legs attached below said base member.
Claim 4
Dependent Claim
41 words
The apparatus of claim 1, where said end walls and said side walls of said base member angle outward from said bottom, and said end wall and said side walls of each of said lid members angle outward from said top.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1, where said lid members are completely removable from said base member.
Claim 6
Dependent Claim
16 words
The apparatus of claim 1, where said base member is constructed of a translucent plastic material.
Claim 7
Dependent Claim
26 words
The apparatus of claim 1, further comprising a rim extending internally from the tops of said side walls and said end walls of said base member.
Claim 8
Dependent Claim
192 words
A secondary containment apparatus used in combination with one or more primary storage drums, comprising: (A) a generally rectangular base member having a bottom, end walls and side walls defining a space to receive said storage drums, said base member being impermeable to liquids; (B) two generally rectangular lid members each having a top, side walls and an end wall, said lid members having interlocking means to releasably interlock said lid members to each other, said interlocking means comprising an internal lip on one of said lid members and an external lip on the other of said lid members, where said internal lip fits within said external lip to form a retaining seal when said lid members are interlocked, said internal lip comprising a large ridge, a plateau portion and a smaller latching ridge, and said external lip comprising a large ridge, a plateau portion and an open ridge; said lid members further having engagement means to slidingly engage said lid members with said base member, whereby said lid members, when engaged with said base member and when interlocked with each other, define a closed space to completely enclose said storage drums.
Claim 9
Dependent Claim
192 words
A secondary containment apparatus used in combination with one or more primary storage drums, comprising: (A) a generally rectangular base member having a bottom, end walls and side walls defining a space to receive said storage drums, said base member being impermeable to liquids; (B) two generally rectangular lid members each having a top, side walls and an end wall, said lid members having interlocking means to releasably interlock said lid members to each other, said interlocking means comprising an internal lip on one of said lid members and an external lip on the other of said lid members, where said internal lip fits within said external lip to form a retaining seal when said lid members are interlocked, said internal lip comprising a large ridge, a plateau portion and a smaller latching ridge, and said external lip comprising a large ridge, a plateau portion and an open ridge; said lid members further having engagement means to slidingly engage said lid members with said base member, whereby said lid members, when engaged with said base member and when interlocked with each other, define a closed space to completely enclose said storage drums.
Claim 10
Dependent Claim
13 words
The apparatus of claim 7, further comprising legs attached below said base member.
Claim 11
Dependent Claim
41 words
The apparatus of claim 7, where said end walls and said side walls of said base member angle outward from said bottom, and said end wall and said side walls of each of said lid members angle outward from said top.
Claim 12
Dependent Claim
16 words
The apparatus of claim 7, where said lid members are completely removable from said base member.
Claim 13
Dependent Claim
16 words
The apparatus of claim 7, where said base member is constructed of a translucent plastic material.
Claim 14
Dependent Claim
26 words
The apparatus of claim 7, further comprising a rim extending internally from the tops of said side walls and said end walls of said base member.
References Cited (Backward Citations)
US301753A
Cited
US646283A
Cited
GB508855A
Cited
US2245798A
Cited
US2501894A
Cited
US2712880A
Cited
US3278009A
Cited
DE2010718A1
Cited
US4057166A
Cited
US4363240A
Cited
US4361232A
Cited
US4469241A
Cited
US4502610A
Cited
US4753351A
Cited
US4757920A
Cited
US4815591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |