Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Welded-turn helical electrical conduit with electrically conductive grounding element

Welded-turn helical electrical conduit with electrically conductive grounding element

US Patent 4328392 · Granted May 4, 1982

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Self-locking electrical and mechanical connecting means and method of making sam1985
Reinforced formed hose1985
Flexible hose with external sheathed electrical conductor1984
Apparatus and method for forming wire reinforced helically fabricated tubing1984
Ultrasonically bonded helically fabricated tubing and apparatus and method for m1984
Method and apparatus for making insulated, reinforced flexible hose1983
Thermoplastic compositions containing polyvinylidene fluoride and chlorinated po1982
Electrical current-carrying flexible hose and method of making same1982
Electrical conduit including helical grounding and reinforcing elements1982
Double-channel electrical conduit1982
Smooth bore flexible hose1981
Method for making high pressure hose1981