Inflating unit with sealing facilities for a tyre filled with air

• US 20040173282A1
• Filed: 12/23/2003
• Published: 09/09/2004
• Est. Priority Date: 07/02/2001
• Status: Abandoned Application

• Current Assignee: Active Tools A/S
• Original Assignee: Active Tools A/S
• Inventors: Laetgaard, Thomas
• Application Number:
  US10/481,839
• Publication Number:
  US 20040173282A1
• Time in Patent Office: Days
• US Class Current: 141/38
• CPC Class Codes: B29C 73/166 Devices or methods for introducing sealing compositions into articles
• CPC Class Codes: B29L 2030/00 Pneumatic or solid tyres or parts thereof conveyor belts B29L2031/7092; drive belts B29L2031/7094; fourdrinier belts B29L2031/733
• CPC Class Codes: B60S 5/04 Supplying air for tyre inflation arrangement of tyre inflating devices on vehicles B60C23/00; tyre pressure gauges G01L17/00 ; pumps actuated by muscle power F04B33/00

Abstract

A compact combination apparatus for inflating and mending a car tyre comprises a compressor with an outlet (10), where compressed air is lead to a tube (12) for connection to the filling valve of the tyre. In the duct of compressed air, an elbow pipe connector is provided (19), which can break the sealing on a bottle (4) with a sealing material and lead compressed air into the bottle, and by that pressing the sealing material out into the tube (12) through a pipe opening (21) at the end of the opening of the bottle. When the inflating unit is used only for refilling a tyre with air without mending it, a plug is inserted (22) in the socket (18) where the bottle (4) is to be fitted that, thus preventing admission of compressed air to the environmental and instead conducting compressed air to the tube (12) through a clearance between a cavity (25) in the plug (22) and the pipe connector (19). According to the invention, a permanently mounted container with sealing material is avoiding during normal use where tyres have to be refilled with air, whereby a substantial amount of space is saved.

Claims

1. Inflating unit with sealing facilities for a tyre filled with air including a source of compressed air, where a duct for compressed air connects the source of compressed air with a filling connector, which can engage the filling valve of the tyre, as a selector device is inserted between the source of compressed air and the filling connector where the selector device either can lead the compressed air directly from the source of compressed air to the filling connector or can leads the compressed air through a container with a sealing agent to the filling comnector, characterized in that the selector device is arranged for alternative fastening of the container or an insert, where the insert is attached to the selector device instead of the container with the sealing agent when delivering compressed air directly from the source of compressed air to the tyre, and where the insert is adapted so that it can lead compressed air directly from the source of compressed air to the fling connector.

2. Inflating unit according to claim 1, where the container is provided with a neck which can engage a socket in the inflating unit, for example by a screw connection and where the socket comprises a perforation member for breaking a sealing in the neck of the container, characterized in that the perforation member consists of a sharp edged pipe connector provided as a part of the duct of compressed air and protruding into the socket, and where the insert has a recess or cavity for accommodating the pipe connector and simultaneously allowing air to pass from the pipe connector to a downstream section of the air duct.

3. Inflating unit according to claim 2, characterized in that in connection with, and downstream of the pipe connector, a check valve is provided for preventing flow from the pipe connector and in the direction of the source of compressed air.