초록 ▼

A press, in an automotive service facility to extract oil from a used automotive oil filter, mounted by brackets on a waste disposal band over an opening in the top of the barrel. An access door to the press having a cam acting on a press control knob to prevent operation of the press when the door

A press, in an automotive service facility to extract oil from a used automotive oil filter, mounted by brackets on a waste disposal band over an opening in the top of the barrel. An access door to the press having a cam acting on a press control knob to prevent operation of the press when the door is open. A hydraulic cylinder in the press and a plate under the cylinder and oil filters being deposited on the plate and being pressed to extract oil by the hydraulic cylinder lifting the plate against the bottom of the cylinder. The press being powered by low pressure air in the service facility which is converted to high pressure hydraulic pressure by a multiple stroke pumping system that includes a larger diameter air piston, in an air cylinder, attached to a smaller diameter hydraulic piston. An on-off control shaft manually shifted by manual operation of the press control knob. A first surface connected to the control shaft subjected to air pressure and a second smaller surface connected to the control shaft subjected to hydraulic pressure to bring the control shaft to “off”position when a predetermined maximum hydraulic pressure in the hydraulic cylinder is reached. Pumping action controls including an air valve shaft connected to the air piston and an air valve responsive to movement of the air valve shaft alternately to apply pressure to the air piston in a pressure stroke and to relieve pressure from the air piston in an intake stroke when a new supply of hydraulic fluid is intaked.

대표청구항 ▼

Means in an automotive service facility to extract oil from a used automotive oil filter, comprising: (a) said service facility having an air source of relatively low psi compressed air, (b) a waste disposal container with a top opening, (c) a press supported by said container over said top opening

Means in an automotive service facility to extract oil from a used automotive oil filter, comprising: (a) said service facility having an air source of relatively low psi compressed air, (b) a waste disposal container with a top opening, (c) a press supported by said container over said top opening so that oil extracted from said filter by said press will drain into said container through said top opening, (d) said press having an access opening for manual deposit and removal of said filter, (e) said press being operable to squeeze said filter to extract most oil therefrom, (f) a hydraulic source of hydraulic fluid and said press having operating means including air pressure to hydraulic pressure conversion means converting from said relatively low psi compressed air from said air source to relatively high psi hydraulic fluid from said hydraulic source and a hydraulic cylinder powered by said relatively high psi hydraulic fluid and said hydraulic cylinder being capable of operating said press, and (g) said press including a bottom plate on which said filter is deposited positioned below said hydraulic cylinder, upright draw means disposed about said cylinder and having its lower end secured to said bottom plate and a top press lift plate disposed above said cylinder and said upright draw means having its upper end secured to said top press lift plate, a piston in said cylinder and a piston rod extending upwardly from said piston and having its upper end bearing on said lift plate so that said filter is squeezed between said bottom plate and the bottom of said cylinder when said press is operated by said hydraulic cylinder.