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US 5,307,674 AGranted
Automatic equipment for pneumatic calibration
OwnerJose E. Fortiinventor
Life of this patent
Estimating the term…
Abstract
A pneumatic calibration device is provided including a body having an air inlet port and an air outlet port, a pressure gauge extending from the body, and a mechanism for adjusting pressure disposed within the body. The pressure adjusting mechanism communicates with the pressure gauge. The air inlet and outlet ports are pneumatically coupled to the pressure adjusting mechanism so as to regulate inflation of an inflatable member.
Claims6
A pneumatic calibration device comprising:
- a body having an air inlet port and an air outlet port;
- a pressure gauge extending from said body;
- means for adjusting pressure disposed within said body, said pressure adjusting means communicating with said pressure gauge, said air inlet and outlet ports being pneumatically coupled to said pressure adjusting means so as to regulate inflation of an inflatable member;
- and
- indicating means for indicating one of filling and emptying the inflatable member, said indicating means being pneumatically coupled to said pressure adjusting means,
- said indicating means including first and second indicating members, said first indicating member being coupled to said outlet port and indicates that the inflatable member is being inflated, said second indicating member being coupled to the air inlet port, said second indicating member including means for venting air to the atmosphere and provides an indication that the inflatable member is being emptied.
3 more elements
Dependencies are inferred from the claim text.