Patent ID: 8356984
Filing Date: 2013-01-22
Classification: F04B

Abstract:
1. A hand air pump comprising: a connecting member including a barrel having a bore formed in said barrel, and including an outlet port and a mouth communicative with said bore of said barrel, a receptacle including a cylinder disposed in said receptacle for forming a space between said receptacle and said cylinder, and including a channel formed in said receptacle and communicative with said space that is formed between said receptacle and said cylinder, said cylinder being engaged onto said barrel and including a chamber formed therein and communicative with said bore of said barrel, said mouth of said connecting member being extended into said space that is formed between said receptacle and said cylinder, a piston slidably engaged in said chamber of said cylinder and movable along said chamber of said cylinder for generating a pressurized air and for supplying the pressurized air into said bore of said barrel and into said outlet port and said mouth of said connecting member, a cover plate engaged with said channel of said receptacle and including a longitudinal hole formed therein and communicative with said mouth of said connecting member, and a gauge device including a notch formed therein for receiving and engaging onto said receptacle, and including at least one latching member engaged with said receptacle for retaining said gauge device to said receptacle, and including a connector extended from said gauge device and engaged with said hole of said cover plate for receiving the pressurized air from said connecting member and said cylinder and for measuring an air pressure within said cylinder.