Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUSD237968 S
Publication typeGrant
Publication dateDec 9, 1975
Filing dateJun 25, 1973
Publication numberUS D237968 S, US D237968S, US-S-D237968, USD237968 S, USD237968S
InventorsJohn W. Olson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Thumbscrew valve depressor
US D237968 S
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Des. 237,968

Patented Dec. 9, 1975 United States Patent THUMBSCREW VALVE DEPRESSOR John W. Olson, .lr., Garland, Tex., assignor to C & D Valve Manufacturing Company, Oklahoma City, Okla.

Filed June 25, 1973, Ser. No. 372,960

Term of patent 14 years Int. Cl. D23--0] US. Cl. D23-40 FIG. 1 is a left side elevation view of the valve depressor showing my new design.

FIG. 2 is a right side elevation view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a front elevation view thereof.

FIG. 6 is a rear elevation view thereof.

FIG. 7 is an isometric view thereof.

I claim: The ornamental design for a thumbscrew valve depressor, substantially as shown and described.

References Cited UNITED STATES PATENTS D. 191,425 9/1961 Popp D2338 WALLACE R. BURKE, Primary Examiner J. M. GANDY, Assistant Examiner

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7647944Oct 6, 2006Jan 19, 2010Michael D. HowertonCombinational valve system