초록 ▼

A portable table which can be used in relatively confined settings. The table includes two vertical supports which are placed on either side of the user's legs and rest on the floor when the table is in use. The supports are hingedly attached and fold underneath the table to allow for the table to b

A portable table which can be used in relatively confined settings. The table includes two vertical supports which are placed on either side of the user's legs and rest on the floor when the table is in use. The supports are hingedly attached and fold underneath the table to allow for the table to be transported easily.

대표청구항 ▼

A portable table which can be used in relatively confined settings. The table includes two vertical supports which are placed on either side of the user's legs and rest on the floor when the table is in use. The supports are hingedly attached and fold underneath the table to allow for the table to b

A portable table which can be used in relatively confined settings. The table includes two vertical supports which are placed on either side of the user's legs and rest on the floor when the table is in use. The supports are hingedly attached and fold underneath the table to allow for the table to be transported easily. ion tube, and a resilient seal engaged by said compression plate; and in said installed condition, said inner and second subassemblies interconnecting to form a fluid-tight chamber that isolates the connection from a remainder of the vessel; whereby said chamber is utilized to isolate the connection from vapor and materials present within the vessel and for performing integrity and leak tests of the connection. 6. A test plug according to claim 5, wherein said contour of the said end surface of said inner subassembly is non-planar. 7. A test plug according to claim 5, wherein said compression plate has a contour corresponding to the contour of the inner surface of the wall of the vessel surrounding the connection. 8. A test plug according to claim 7, wherein said reversely-turned sealing means includes a rigid ring which extends concentrically about said seal, whereby said ring prevents said seal from being blown out of sealing engagement during high test pressure conditions. 9. A test plug according to claim 5, wherein said second subassembly includes a flange plate and a cylindrical spacing tube about and parallel to said shaft for adjustably spacing said inner subassembly from said flange plate, said flange plate having a central opening which receives said spacing tube. 10. A test plug according to claim 5, wherein said second subassembly is an inner diameter plug subassembly for forming a fluid-tight seal with an inner diameter surface of the branch pipe. 11. A test plug according to claim 10, wherein said inner diameter plug subassembly includes proximal and distal compression plates slidably mounted on said shaft, and a frustoconical member, a plurality of grippers, and a resilient annular seal located between said proximal and distal compression plates. 12. A test plug for isolating and testing the integrity of a connection between a wall of a vessel and a relatively smaller branch pipe extending transversely therefrom, the branch pipe having an inner end extending within the vessel and an open free end extending externally of the vessel, comprising: an inner subassembly for enclosing the inner end of the branch pipe and for forming a fluid-tight seal with an inner surface of the wall of the vessel adjacent and surrounding the connection when the test plug is in an installed condition, said inner subassembly having an end surface with a contour that substantially corresponds