Patent · US Active

Protected air inlet for an air pump with a pressure gauge

US11092144B2 · kind B2 · utility

0Cited by
12References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 7, 2017
Grant dateAug 17, 2021
Priority date—
Expiry dateOct 4, 2038

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF04B33/005
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An Example can include an elongate pump barrel extending along a length and defining an elongate hollow piston chamber. The Example can include a piston slidably movable within the piston chamber to compress air within the piston chamber. The Example can include a piston rod connected to the piston. The Example can include a handle connected to the piston rod to reciprocally slide the piston in the piston chamber. The Example can include a piston rod seal disposed around the piston rod and coupled with the elongate pump barrel. The Example can include a downward opening air intake passage, located away from the rod seal, in fluid communication with a top of the piston.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.