초록 ▼

A method to set a hollow device into an undersea flow pipe uses a flexible pig 5 driven by a flow flowing into the flow pipe to displace a hollow device to a point where a stop halts a displacement of hollow device, thereby setting hollow device into position. A method to retrieve a hollow device fr

A method to set a hollow device into an undersea flow pipe uses a flexible pig 5 driven by a flow flowing into the flow pipe to displace a hollow device to a point where a stop halts a displacement of hollow device, thereby setting hollow device into position. A method to retrieve a hollow device from an undersea flow pipe uses a flexible pig driven by a flow flowing into flow pipe to retrieve hollow device from a location where hollow device operates.

대표청구항 ▼

A method to set a hollow device into an undersea flow pipe uses a flexible pig 5 driven by a flow flowing into the flow pipe to displace a hollow device to a point where a stop halts a displacement of hollow device, thereby setting hollow device into position. A method to retrieve a hollow device fr

A method to set a hollow device into an undersea flow pipe uses a flexible pig 5 driven by a flow flowing into the flow pipe to displace a hollow device to a point where a stop halts a displacement of hollow device, thereby setting hollow device into position. A method to retrieve a hollow device from an undersea flow pipe uses a flexible pig driven by a flow flowing into flow pipe to retrieve hollow device from a location where hollow device operates. ended by said C-shaped cross-section when said clamp and base are mated, whereby said clamp partially surrounds said base, uniformly exceeds 180 degrees of arc along the length of said clamp; whereby said resilient clamp retains said base uniformly along the length of said clamp. 4. The bag clamp of claim 1 wherein said first base section comprises a substantially-tubular first length of substantially-unmodified first hose. 5. The bag clamp of claim 4 wherein said clamp section comprises a third length of substantially-resilient third hose, which hose is modified such that it has said substantially C-shaped cross-section. 6. The bag clamp of claim 5 wherein said clamp section is formed from said third length of hose by removing hose material extraneous to said C-shaped cross-section. 7. The bag clamp of claim 4 wherein said hinge section comprises a substantially-pliable modified second length of second hose. 8. The bag clamp of claim 7 wherein said modified second length of hose is modified such that it is substantially more flexible than unmodified second hose. 9. The bag clamp of claim 8 wherein said modified hose has a substantially parentheses-shaped cross-section. 10. The bag clamp of claim 9 wherein said hinge section is formed from said second length of hose by the removal of hose material extraneous to said desired parenthesis-shaped cross-section. 11. The bag clamp of claim 10 wherein said clamp section comprises a third length of substantially-resilient third hose, which hose is modified such that it has said substantially C-shaped cross-section. 12. The bag clamp of claim 11 wherein said clamp section is formed from said third length of hose by the removal of hose material extraneous to said desired C-shaped cross-section. 13. The bag clamp of claim 12 wherein said C-shaped cross-section of said clamp is substantially non-uniform; wherein the angle subtended by said cross-section may vary periodically along the length of said clamp, from below 180 degrees to substantially greater than 180 degrees of arc, thereby forming a plurality of fingers in said clamp region which hold said base when said base and clamp are mated; whereby when said bag clamp is used, said base is more easily inserted into said clamp, yet said clamp holds said base and bag neck firmly when so inserted. 14. The bag clamp of claim 12 wherein, prior to said removal of hose material to form said hinge and clamp sections, a single overall length of substantially uniform substantially-resilient, substantially-pliable hose comprises said first, second and third lengths of hose; such that said first, second and third lengths of hose comprise first, second and third contiguous sub-lengths, respectively, of said overall length of hose; whereby said bag clamp is formed from said overall length of hose simply by selectively removing hose material from said contiguous second and third sub-lengths of said hose. 15. The bag clamp of claim 14 wherein said hose has a first plurality of exterior ridges on its exterior surface and a second plurality of interior ridges on its interior surface; wherein said ridges run uniformly lengthwise along the length of said hose; wherein said interior ridges and exterior ridges are spaced so as to matingly mesh with one another when said base section is mated within said clamp section; whereby said flattened bag neck, thereby trapped between said clamp and said base, is forced to take a meandering path around said base; whereby said bag neck is held and sealed more tightly. 16. A first bag clamp of claim 14, further comprising a second bag clamp of claim 14; wherein each clamp section of said bag clamps is approximately equal in length to the hinge section of the other; wherein said first and second bag clamps are complementary, such that each said clamp section comprises the hose material that must be removed from the hinge section of the other, and each said hinge section comprises the hose mate