Coolant line hydrometer
This patent describes a hydrometer unit for connection in an automobile coolant flow line comprising: a tubular fitting adapted to be connected to the coolant flow line; a coolant receiving chamber means connected to the tubular fitting for receiving coolant from the tubular fitting; and indicating float elements contained within the coolant receiving chamber means and adapted to rise therein individually as a function of the specific gravity of the coolant. The coolant receiving chamber means includes a closure cap which when connected to the tubular fitting forms a coolant receiving chamber, retaining means for retaining the indicating float elements within the coolant receiving chamber, a viewing window member of a substantially clear material through which the float elements can be visually observed within the coolant receiving chamber means, and air venturi means located within the coolant receiving chamber means for automatically removing air which may collect within the coolant chamber means.
- Assignee:
- NOV; NOV-87-053417; EDB-87-080958
- Patent Number(s):
- US 4649747
- OSTI ID:
- 6618405
- Resource Relation:
- Patent File Date: Filed date 7 Feb 1985
- Country of Publication:
- United States
- Language:
- English
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