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| Adapter for coupling a photographic camera with a viewing device |
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Liquid dispenser with liquid level indicator
| Details |
Inventors: Ludlow, Thomas B.;
Assignee:
Primary Examiner: Bell, Jr.; Houston S.
Assistant Examiner:
Attorney, Agent or Firm: Palmatier; H. Dale
A liquid dispenser having a liquid flow duct through which liquid may flow from a liquid source into a battery or the like. The dispenser includes a light-transmitting portion adjacent the flow duct to produce a visual indication of the surface elevation of a pool of liquid into which the liquid flows. Available light at the outer end of the light-transmitting portion passes in and through the latter to a reflective, inner end of the light-transmitting portion and is then reflected back out to provide a visual indication that the reflective end is not immersed in the pool of liquid. When the level of the pool has risen to immerse the reflective end, the available light reaching the reflective end is refracted into the liquid, and immersion is indicated by the relative absence of reflection. |
|
DETAILED DESCRIPTION Referring now to FIGS.
1 and 2, the dispenser of the invention is designated generally as 10 and comprises an elongated body 12 of light-transmitting material such as a clear plastic.
At its lower end, the body is provided with a central bore 12.
1 which extends upwardly in the body to a point intermediate its ends.
A second bore 12.
2 is provided in the side of the body and intersects the bore 12.
1.
To the side of the body is mounted a tube 14 having an internal bore 14.
1 aligned with the bore 12.
2.
At its outer end 14.
2, the tube has a fitting 14.
3 to which may be attached a plastic hose 14.
4 leading to a reservoir of liquid (not shown).
The tube 14 is provided with a valve designated generally as 16 which may be of the type shown in U.
S.
Pat.
No.
3,301,525.
The tube 14 includes a recessed portion 14.
5 which intersects the bore 14.
1 and which provides a generally conical valve seat 14.
6.
A plug 16.
1 carried by the valve 16 is arranged to engage the valve seat 14.
6 and halt the flow of liquid through the bore 14.
1.
The plug 16.
1 is made of soft, resilient material, and is generally cup-shaped, as shown in FIG.
1.
A valve stem 16.
2 extends within the plug 16.
1 and is attached at its lower end to the plug such that movement of the valve stem axially up and down causes the plug to move out of and into contact with the valve seat 14.
6.
The valve 16 includes a cap 16.
3 mounted to the tube 14, and a spring 16.
4 carried internally of the valve urges the valve stem and plug downwardly so that the latter seats against the valve seat 14.
6.
At its upper end, the stem 16.
2 is provided with a pivotally attached handle 16.
5 having a camming surface which bears against the upper surface of the cap 16.
3 so that as the handle is moved upwardly and downwardly between the solid and dashed line positions in FIG.
1, the valve stem 16.
2 is moved axially back and forth to open and close the valve.
As shown perhaps best in FIG.
7, the walls 12.
3 at the slender lower, or inner, end of the body 12 are cylindrical and have inner and outer surfaces 12
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Communications 
