Aeration spray arm unit for use in swimming pools
Description
FIG. 1 is a right, front perspective view of an aeration spray arm unit for use in swimming pools showing our new design with the undisclosed rear of the pipes and coupling elements being the same in appearance;
FIG. 2 is a top plan view thereof, the bottom view being a mirror image; and,
FIG. 3 is a right side new thereof, the left side view being a mirror image.
The undisclosed rear is plain and follows the contour as indicated. The pipe element is fragmentarily shown to indicate intermediate length.
In FIGS. 1 and 3, the pipe is shown broken away to indicate indeterminate length.
Referenced Cited
U.S. Patent Documents
1102354 | July 1914 | Pougnet |
1830448 | November 1931 | Steininger |
1847763 | March 1932 | Keys |
Patent History
Patent number: D357970
Type: Grant
Filed: May 11, 1993
Date of Patent: May 2, 1995
Inventors: William G. Lupton (Chatham, MA), Joseph E. Boardman (Chatham, MA)
Primary Examiner: James M. Gandy
Assistant Examiner: Robin V. Taylor
Attorney: Thomas A. Kahrl
Application Number: 0/8,193
Type: Grant
Filed: May 11, 1993
Date of Patent: May 2, 1995
Inventors: William G. Lupton (Chatham, MA), Joseph E. Boardman (Chatham, MA)
Primary Examiner: James M. Gandy
Assistant Examiner: Robin V. Taylor
Attorney: Thomas A. Kahrl
Application Number: 0/8,193
Classifications
Current U.S. Class:
Dispersal (i.e., Sprayer, Fogger, Nozzle, Aerator, Etc.) (4) (D23/213)