초록 ▼

The hydraulic device for raising and lowering seat of the barber's chair has a main housing section and a lower section. A sliding plunger is slidably mounted in a sleeve extending between the lower section and the top cover of the main housing section. An oil pump is operative to force the oil cont

The hydraulic device for raising and lowering seat of the barber's chair has a main housing section and a lower section. A sliding plunger is slidably mounted in a sleeve extending between the lower section and the top cover of the main housing section. An oil pump is operative to force the oil contained with the main housing section into a channel in the lower section to the bottom of the sleeve for raising or lowering the sliding plunger. The seat of the barber's chair is mounted to the top of the sliding plunger. The joint between the lower section and the main housing section is permanently sealed with a metal compound by welding, brazing or soldering.

대표청구항 ▼

[ I claim:] [1.] A hydraulic device adapted for permanent mounting of a barber's chair and operative for raising and lowering the seat of said barber's chair permanently mounted on top of a sliding plunger therein, comprisinga circular cylindrical main housing section adapted for housing operating o

[ I claim:] [1.] A hydraulic device adapted for permanent mounting of a barber's chair and operative for raising and lowering the seat of said barber's chair permanently mounted on top of a sliding plunger therein, comprisinga circular cylindrical main housing section adapted for housing operating oil for said device and operative for raising and lowering said sliding plunger, said main housing having a top cover and a circular bottom opening having an inner diameter,a circular cylindrical lower section adapted to be mounted to said main housing section, said lower section and said main housing having an equal outside diameter, and said lower section having an upper portion provided with a smooth circular surface and a diameter equal to said inner diameter of said circular bottom opening of said main housing section and adapted for insertion engagement with said circular bottom opening of said main housing section to form a snug-fitted circular joint therebetween having an exposed circular joint line,a metallic sealing compound permanently applied over the entirety of said circular joint line.