Air pump

Details Air pump Air pump

1996-10-04

1998-07-07

Lopez, F. Daniel

Expansible chamber devices

Knockdown or flow conduit storage or retrieval means

92187, F01B 3100

Patent

active

057752001

ABSTRACT:
An air pump consisting of a housing, a piston, a piston-rod, and a cover is disclosed. The housing is a open-top hollow cylinder which contains a lower portion of the piston-rod and the piston connected to the bottom end of the piston-rod. The housing is topped by the cover which has a circular hole located at the center so as to allow the piston-rod to pass through the cover into the housing. The piston is connected with the piston-rod in a manner that the piston can rotate around the connecting point to some small degree while remains connected with the piston-rod. This may prevent the deviation of the piston from the position perpendicular to the inner wall of the cylinder caused by the sway of the piston-rod when the piston-rod is moved up and down. In addition, a cavity is formed in the surface of the piston-rod near the top to retain a ball needle.

REFERENCES:
patent: 534715 (1895-02-01), Hall
patent: 1490553 (1924-04-01), Barthel
patent: 2200012 (1940-05-01), Russell et al.
patent: 3765307 (1973-10-01), Neel
patent: 5433136 (1995-07-01), Lung-Po

Affiliated with

Also associated with

Rating

Air pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1194870