Weighing scales – Structural installation – Vehicle
Patent
1977-11-14
1979-07-31
Miller, Jr., George H.
Weighing scales
Structural installation
Vehicle
177208, G01G 1910, G01G 504
Patent
active
041627105
ABSTRACT:
A horizontal table is provided including a depending central support portion for rigid support from a vehicle mounting portion. An upper top plate including a downwardly directed peripheral flange is centered over the table and a diaphragm is sealingly secured to and extends between remote portions of the peripheral flange below the top plate and overlies and is supported from the table. The top plate and table include coacting structure guiding the top plate from the table for vertical movement relative thereto, limited horizontal shifting relative thereto and limited canting in all directions about a central zone of the table. A vertically elongated pop-off valve assembly is sealingly secured through a central portion of the table and includes an upwardly projectable piston plunger engageable with the underside of the top plate in response to the valve assembly being charged at its lower end and the assembly includes structure operative to vent the assembly to the ambient atmosphere in response to upward movement of the plunger to a predetermined level and to close the assembly against venting to the ambient atmosphere upon lowering of the plunger below the aforementioned predetermined level.
REFERENCES:
patent: 2501730 (1950-03-01), McClure
patent: 3327795 (1967-06-01), Link
patent: 3456749 (1969-07-01), Smieja
patent: 3695100 (1972-10-01), Mitchell
Jacobson Harvey B.
Miller Jr. George H.
O#Brien Clarence A.
Sjogren Alan L.
Sjogren Glenda J.
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