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Tire pressure gauge

  • US 5,908,984 A
  • Filed: 07/30/1998
  • Issued: 06/01/1999
  • Est. Priority Date: 07/30/1998
  • Status: Expired due to Term
First Claim
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1. A tire pressure gauge, comprising:

  • a first portion including a display means mounted thereto for displaying pressure value of a tire adapted to be inspected by the tire pressure gauge,a second portion including a compartment defined therein and communicated with the display means, the second portion further including a slot defined in a periphery thereof and communicated with the compartment,a switch member pivotally mounted in the compartment of the second portion and including an operative member extended beyond the slot for manual operation, the operative member being movable between a first position for inspecting a first type of tire valves and a second position for inspecting a second type of tire valves along the slot of the second portion,a retainer including a first end engaged with the switch member to rotate therewith and a second end with a first chamber defined therein, the retainer further including a transverse hole communicated with the first chamber,a sleeve securely mounted in the compartment, the sleeve including a second chamber defined in a first end thereof for rotatably receiving the second end of the retainer and a third chamber defined in a second end thereof, the sleeve further including a first passage communicated with the second chamber and the first chamber such that the first chamber of the retainer communicates the display means via the transverse hole of the retainer and the first passage of the sleeve, anda needle member slidably received in the sleeve and including a first end and a second end, the needle member including a second passage communicated outside with the first chamber of the retainer,whereby when the switch member is in the first position, the first end of the needle member bears against the second end of the retainer for inspecting said first type of tire valves, and when the switch member is in the second position, the first end of the needle is insertable into the first chamber of the second end of the retainer for inspecting the second type of tire valves.

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