Tire valve pressure-indicating cover utilizing colors to indicate tire pressure

• US 5,886,254 A
• Filed: 03/30/1998
• Issued: 03/23/1999
• Est. Priority Date: 03/30/1998
• Status: Expired due to Term

• Current Assignee: Jiaa Chi
• Original Assignee: Jiaa Chi
• Inventors: Chi, Jiaa
• Primary Examiner(s): FELBER, JOSEPH LEON
• Application Number:
  US09/049,902
• Time in Patent Office: 358 Days
• Field of Search: 73/146.8, 116/34 R
• US Class Current: 73/146.8
• CPC Class Codes: B60C 23/0496 Valve stem attachments positioned outside of the tyre chamber

Abstract

A tire pressure cover utilizing colors to indicate tire pressure includes mainly a transparent cover and a metal housing. The metal housing houses an alarm bolt, a spring, a floating seat, a rubber pad, an air ventilating plate, and a gasket. When the tire pressure cover is locked to the air nozzle of a tire, the air inside the tire will enter the tire pressure cover and pass through the air ventilating plate to push the rubber pad, which in turn forces the floating seat thereon to rise so that the spring disposed in the floating seat is compressed. The floating seat will become stationary when the internal and external pressure of the tire pressure cover and the tire are balanced. The alarm bolt has a red section and a yellow section. When the floating seat elevates, it may conceal the alarm bolt completely or in part. The user may, by looking at the color exposed on the alarm bolt to determine whether the tire pressure is sufficient. When the yellow section is shown, it indicates the tire pressure is adequate. When the red section is shown, it indicates that inflation is required. The tire pressure cover, which is simple in construction, may thus ensure driving safety.

Claims

1. A tire value pressure-indicating cover utilizing colors to indicate tire pressure, comprising a transparent cover, an alarm bolt, a spring, a floating seat, a rubber pad, an air ventilating plate, a metal housing, and a gasket, wherein said metal housing has a hollow upper recess at an upper end, a lower threaded hole at a lower end, a small bolt hole between said upper recess and said lower threaded hole, said upper recess being sealingly coupled to a flange at a bottom portion of said transparent cover, said air ventilating plate being disposed at a bottom portion inside said upper recess, said rubber pad being located on said air ventilating plate, said floating seat being disposed on said rubber pad and receiving said spring insertably disposed therein, said spring urging against said alarm bolt disposed above, said alarm bolt having two sections of different colors, said gasket being disposed inside said small bolt hole, said air ventilating plate having at least one air vent to allow passage of air therethrough and a projection extending from a bottom side thereof, whereby said floating seat is subjected to the pressure of a tire and the action of said spring urging thereagainst so that it may elevate or drop in position to allow said alarm bolt to expose said colors thereon, thereby allowing the user to judge whether the tire pressure is sufficient.

2. The tire pressure cover as claimed in claim 1, wherein said alarm bolt includes a round disk at a top side thereof, to which a sticker may be adhered to indicate the recommended tire pressure value.

3. The tire pressure cover as claimed in claim 1, wherein said floating seat includes a hollow upper seat and a hollow base integrally assembled together, and a partition layer disposed intermediate said upper seat and said hollow base, said partition layer having a projecting bolt at a center thereof.

4. The tire pressure cover as claimed in claim 1, wherein said gasket is stepped to include an inner raised portion and has a central through hole.

5. The tire pressure cover as claimed in claim 1, wherein said rubber pad is circular and has a circumferential depression and a conical portion at a center thereof.