Liquid level gauge and valve专利检索-液化石油气原油燃料种类专利检索查询-专利查询网

Liquid level gauge and valve

阅读：511发布：2022-12-20

专利汇可以提供Liquid level gauge and valve专利检索，专利查询，专利分析的服务。并且A filling and withdrawal valve in combination with a liquid level indicator particularly adapted for tanks for liquids such as liquified petroleum gases. The level indicator includes a float coupled by a pair of bevel gears to a vertical shaft extending in a valve housing to a magnetically coupled liquid level indicator. The level indicator dial is provided in a top reading or a combined top and side reading form. Each form of the indicator is isolated from tank pressure and is removable with gas in the tank.，下面是Liquid level gauge and valve专利的具体信息内容。

权利要求

1. An integrated combination liquid level indicator and flow valve for use with a tank having a storage chamber therein comprising: a hollow non-magnetic body having thread means along one end portion thereof for securing to a fitting on said tank and having an elongated central chamber communicating with said tank when said body is secured with said tank; said body being provided with a lateral pressure release flow passage in one side of said body communicating with said chamber in said body; a relief valve secured on said body over said pressure release flow passage for permitting fluid flow from said chamber of said tank when the pressure therein exceeds a predetermined value; said body having a fluid inlet and outlet flow passage communicating with said chamber in said body said passage having a first portion aligned with said pressure release passage on the opposite side of said body and a second portion normal to said first portion and opening to the outside of said body; a valve secured with said body for movement between open and closed positions in said first portion of said inlet and outlet flow passage for controlling fluid flow into and out of said chamber of said tank through said second passage portion of said body; a tubular support member secured with said body and disposed along one end portion within said chamber of said tank when said body is secured with said tank and along the other end portion in concentric spaced relation in said body chamber; bearing means connected with said other end portion of said support member; a rotatable shaft disposed through said bearing means having a first end terminating in said chamber of said tank and a second end terminating in said chamber of said body near the upper end thereof; a first bevel gear on said first end of said shaft; a second bevel gear rotatably secured with said support member in said chamber meshing with said first bevel gear; a float rod secured with said second bevel gear; a float secured on one end of said float rod for moving said rod responsive to the liquid level in said tank to rotate said bearing supported shaft; a counterweight secured on the other end of said rod; a magnet secured on said second end of said shaft at the upper end of said chamber in said body; said body having an upwardly opening recess in the top thereof separated from said chamber of said body; and a magnetically responsive indicator dial supported in said body recess and observable from outside said body, said indicator dial being rotated responsive to said magnet on said shaft for indicating the liquid level in said chamber of said tank.

2. A liquid level indicator and valve in accordance with claim 1 wherein said indicator dial is removably pressure isolated from said chamber of said tank whereby said dial is removable froM said body when said chamber is under pressure.

3. A liquid level indicator and valve in accordance with claim 2 wherein said dial is top reading only.

4. A liquid level indicator and valve in accordance with claim 2 wherein said dial is top and side reading.

说明书全文

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Liquid level gauge and valve

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