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| Number | Title | Issue Date |
| 6015168 | Pivotal lock for coupling cam arms A locking mechanism for securing a cam arm of a coupling member in a locked position to prevent inadvertent rotation of the cam arm. The locking mechanism includes a locking member that is pivotally connected to the cam arm and is adapted to selectively i... | 01/18/2000 |
| 5950860 | Adjustable length storage tank sumps An adjustable length storage tank sump for attachment to an underground storage tank is provided. The storage tank sump is formed from a body having a polygonal lower portion with a chamber, an interconnecting conical middle portion, and an upper portion ... | 09/14/1999 |
| 5819975 | Dispenser sump A dispenser sump which includes a deflection surface and a distribution channel for distributing liquids about the interior periphery of the sump to allow insertion of fluid removal apparatus along any wall of the sump. The sump also provides increased st... | 10/13/1998 |
| 5813797 | Unitary sump frame A unitary sump frame made from a continuous material is disclosed. A substantially planar and continuous flange has an inner perimeter defining an opening in the frame and an outer perimeter. A lip is integrally connected to the flange and extends downwar... | 09/29/1998 |
| 5699823 | Breakaway coupling A breakaway coupling including first and second coupling parts secured together by releasable means, the releasable means permitting separation of the coupling parts in a given direction when exposed to a separating force in excess of a predetermined forc... | 12/23/1997 |
