Check valve for dispenser pump

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a lower-end perspective view of the check valve for dispenser pump;

FIG. 2 is an upper-end perspective view thereof;

FIG. 3 is a side elevation thereof;

FIG. 4 is a bottom plan elevation thereof; and,

FIG. 5 is a top plan elevation thereof.

Referenced Cited
U.S. Patent Documents
D153064 March 1949 Hammon
D210747 April 1968 Anson
D308724 June 19, 1990 Ennis, III et al.
D311437 October 16, 1990 Datta et al.
D357734 April 25, 1995 Mongeon
2783324 February 1957 Brown et al.
4607659 August 26, 1986 Cole
Foreign Patent Documents
1353811 April 1963 FRX
Other references
  • Sweet's General Building & Renovation Catalog, 1994-Section 08 710-Simplex-Unicam Co. on p. 1.
Patent History
Patent number: D370963
Type: Grant
Filed: Jul 28, 1995
Date of Patent: Jun 18, 1996
Inventor: Warren S. Daansen (Nashua, NH)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Gregory Andoll
Attorney: Vernon C. Maine
Application Number: 0/41,977
Classifications
Current U.S. Class: Pressure Regulating Or Relieving (D23/235)