Patent Application
20100300350
1. Field of the Invention
The present invention relates to a pressure gauge, especially to a pressure gauge with internal fasteners for improved aesthetic appearance.
2. Description of the Related Art
A pressure gauge is used to measure pressure of fluids. With reference to
However, heads of the screws (71) are revealed on the dial (72), reduce an aesthetic appearance of the pressure gauge (70) and reduce end value of the pressure gauge (70).
To overcome the shortcomings, the present invention provides a pressure gauge to mitigate or obviate the aforementioned problems.
The main objective of the invention is to provide a pressure gauge with improved aesthetic appearance.
The pressure gauge has a base, a measuring assembly, a dial and a fastener. The base has a chamber and a side opening communicating with the chamber. The measuring assembly is mounted in the chamber and has a tab mount passing through the side opening. The tab mount has a fixing hole. The dial is disposed on the base, covers the measuring assembly and has a tab and a fastening hole. The tab extends through the side opening of the base. The fastening hole is formed through the tab and aligns with the fixing hole of the tab mount. The fastener is mounted through the fixing hole and the fastening hole and thus fixes the dial without being revealed. Therefore aesthetic appearance of the pressure gauge is improved.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
The base (10) has a top opening, a chamber, a sidewall and a side opening (11) and may have a shoulder (12). The chamber is formed in the base and communicates with the top opening. The side opening (11) is formed through the sidewall and communicates with the chamber. The shoulder (12) is formed around the top opening of the base (10) and may be threaded, have an annulus or the like.
The measuring assembly (20) is mounted in the chamber of the base (10) and has a body and a tab mount (21). The body is disposed in the chamber and has a side and may have a spindle (24). The tab mount (21) is attached to the side of the body and passes through the side opening (11) of the base (10) and has a top, at least one fixing hole (23) and may have at least one positioning protrusion (22). The at least one fixing hole (23) is formed in the top of the tab mount (21). The at least one positioning protrusion (22) is formed on the top of the tab mount (21). Preferably one fixing hole (23) and two positioning protrusions (22) are implemented and the fixing hole (23) is disposed between the positioning protrusions (22).
The dial (30) is disposed on the top opening of the base (10), covers the measuring assembly (20) and has a rim, a tab (31) and at least one fastening hole (32) and may have at least one positioning hole (320) and may be mounted around the spindle (24). The tab (31) is formed on and extends from the rim through the side opening (11) of the base (10). The at least one fastening hole (32) is formed through the tab (31) and aligns with the at least one fixing hole (23) of the tab mount (21). The at least one positioning hole (320) is formed through the tab (31) and correspondingly mounted around the at least one positioning protrusion (22) of the tab mount (21). Preferably one fastening hole (32) and two positioning holes (320) are implemented, wherein the fastening hole (32) is disposed between the positioning holes (320).
The at least one fastener (33) is correspondingly mounted in the at least one fixing hole (23) through the at least one fastening hole (32). Therefore the dial (30) is securely fixed on the body of the measuring assembly (20).
The pointer (34) is attached to the spindle (24) of the measuring assembly (20). The pointer (34) rotates with the spindle (24) and points to a scale on the dial (30) to indicate a corresponding pressure value.
The transparent cover (40) is mounted on top opening of the base (10) to secure the pointer (34) and the dial (30) and has an engaging ring (41). The engaging ring (41) is formed on and protrudes from a bottom of the transparent cover (40), engages the shoulder (12) of the base (10) wherein the shoulder (12) may be threaded, have an annulus or the like.
With further reference to
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
