Second stage pressure regulator for underwater breathing apparatus
US D202318 S
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Description (OCR text may contain errors)
United States Patent 0 Des. 202,318
Patented Sept. 14, 1965 SECOND STAGE PRESSURE REGULATOR FOR UNDERWATER BREATHING APPARATUS Earl M. Shugarrnan, Costa Mesa, Califi, assignor to W. J. Volt Rubber Corp., a corporation of California Filed Aug. 5, 1964, Ser. No. 81,169
Term of patent 3 /2 years FIGURE 1 is a perspective view of a second stage pressure regulator, showing my new design;
FIGURE 2 is a perspective view as seen from the opposite side of FIGURE 1; and
FIGURE 3 is a plan view taken from the bottom of FIGURE 1.
The ornamental design for a second stage pressure regulator for underwater breathing apparatus, substantially as shown.
References Cited by the Examiner UNITED STATES PATENTS D. 176,508 1/56 Enos D26-13 D. 195,070 4/63 Lecocq D831 D. 195,803 7/63 Elder D831 OTHER REFERENCES Aqua-lung News, received July 1961, page 4, Calypso regulator.
WALLACE R. BURKE, Acting Primary Examiner.
ADELINE B. HANNAH, Examiner.