Kevin E. Hall - Allen Park MI, US Christopher Davies - Waldwick NJ, US Thomas Still - Campbell TX, US Keith Wolos - Pequannock NJ, US Kenneth Grimbilas - Pompton Plains NJ, US
Assignee:
Potters Industries, Inc. - Berwyn PA
International Classification:
E01C 23/16 E01C 17/00 G01F 11/00 E01C 7/35
US Classification:
404 93, 404 94, 222 1, 239455
Abstract:
A marking sphere dispensing apparatus for dispensing fluid-assisted marking spheres into pavement marking materials applied to a surface has a frame defining a marking sphere receptacle, a valve seat defining an opening between the marking sphere receptacle and an expulsion duct. A plunger is disposed coaxially to the longitudinal axis of the dispensing apparatus and defines an internal fluid passage for providing pressurized fluid. The plunger is moveable in a longitudinal direction within the marking sphere dispensing frame between a first position at which a plunger head of the plunger is seated against the valve seat to close the opening, and a second position at which the plunger head is axially offset from the valve seat to define a marking sphere inlet gap across the opening. A method for applying marking spheres uses the marking sphere dispensing apparatus.
Kevin E. Hall - Allen Park MI, US Christopher Davies - Waldwick NJ, US Thomas Still - Campbell TX, US Keith Wolos - Pequannock NJ, US Kenneth Grimbilas - Pompton Plains NJ, US
Assignee:
Potters Industries Inc. - Malvern PA
International Classification:
E01C 23/16 E01C 17/00 E01C 7/35 G01F 11/00
US Classification:
404 93, 404 94, 404111, 222 1, 239455
Abstract:
A marking sphere dispensing apparatus for dispensing fluid-assisted marking spheres into pavement marking materials applied to a surface has a frame defining a marking sphere receptacle, a valve seat defining an opening between the marking sphere receptacle and an expulsion duct. A plunger is disposed coaxially to the longitudinal axis of the dispensing apparatus and defines an internal fluid passage for providing pressurized fluid. The plunger is moveable in a longitudinal direction within the marking sphere dispensing frame between a first position at which a plunger head of the plunger is seated against the valve seat to close the opening, and a second position at which the plunger head is axially offset from the valve seat to define a marking sphere inlet gap across the opening. A method for applying marking spheres uses the marking sphere dispensing apparatus.
Apparatus For Maintaining A Predetermined Liquid Level
An apparatus for maintaining a predetermined liquid level within a tank while effecting the continuous addition and removal of liquid within the tank. The apparatus is provided with a housing that mounts directly on a side wall of the tank with the housing extending on both sides of the wall, so that it is partially inside and partially outside the tank. The housing has a first passageway which receives fresh liquid from a pressurized supply and introduces a portion of the fresh liquid into the tank. The remainder of the fresh liquid is provided to a second passageway which is connected between the first passageway and a drain. The second passageway has a constriction near its inlet, which accelerates liquid flowing through it and injects the liquid into the second passageway at a high speed. This produces a region of low pressure in the second passageway. A third passageway is connected to the region of low pressure and it is coupled to the water in the tank.