A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A ball swivel of the configuration typically utilized for pool cleaners includes male and female portions featuring an interposed stopper to reduce friction and prevent the male and female portions from binding under load, while improving sealing and continuing to allow rotational and pivotal motion.
A ball swivel of the configuration typically utilized for pool cleaners includes male and female portions featuring an interposed stopper to reduce friction and prevent the male and female portions from binding under load, while improving sealing and continuing to allow rotational and pivotal motion.
ANTI-BINDING BALL SWIVEL
STOLTZ HERMAN (author)
2017-10-12
Patent
Electronic Resource
English