Pressure gauge assembly

Claim 2

A pressure gauge assembly comprising a mounting bracket member permanently connectable to pressure line means to be gauged, a gauge member, means on one of said members for releasably clamping said gauge member to said bracket member, and means including tube means mounted against relative rotation on one of said members and receivable in the other member for sealingly connecting said members for passage of fluid therebetween.

Claim 3

A pressure gauge assembly according to claim 1, including spring means acting between said members for urging said members together on clamping of the gauge member to the bracket member.

Claim 4

A pressure gauge assembly according to claim 2, wherein the spring means is a spring plate releasably secured to the one member and mounting the tube means, and including sealing gasket means seated in said plate about said tube means and engaging confronting surfaces of the members for sealing therebetween on clamping of the gauge member to the bracket member.

Claim 5

A pressure gauge assembly according to claim 3, wherein the spring plate is secured to the gauge member and including spaced fixed and projectable latch means mounted on the bracket member and spring catch means on opposite sides of the spring plate and engageable by said latch means for releasably clamping the gauge member under spring pressure to the bracket member.

Claim 6

A pressure gauge assembly according to claim 1, wherein the gauge member is a plural gauge having a plurality of pressure responsive means for simultaneously gauging a plurality of pressures, the bracket member is separately connected to a plurality of pressure lines and has therein a plurality of separate passages each leading from one of said lines toward a surface of the bracket member confronting the gauge member on clamping thereof to the bracket member, and the tube means are a plurality of separate tubes each connectable to one of said passages for transmitting pressure therefrom to one of said pressure responsive means.

Claim 7

A pressure gauge assembly according to claim 1, wherein the gauge member has a case including a removable magnifying cover plate, and said cover plate is formed of a glass lens molded in a plastic rim.

Claim 8

A pressure gauge assembly according to claim 4, wherein the gauge member is a plural gauge having a plurality of pressure responsive means for simultaneously indicating a plurality of pressures, the bracket member is separately connnected to a plurality of pressure lines and has a plurality of passages therein each leading from one of said lines toward a surface thereof confronting said plural gauge on clamping thereof to the bracket member, and the tube means are a plurality of separate tubes each connectable to one of said passages for transmitting pressure therefrom to one of said pressure responsive means.

Claim 9

A pressure gauge assembly according to claim 7, wherein the catch means at opposite sides of the spring plate are counterparts, the catcH means at each side includes a center catch engageable with the projectable latch means and side catches engageable with the fixed latch means, and the tubes are centered laterally on the spring plate, whereby the gauge is reversibly clampable to the bracket member and by reversal of the spring plate on the gauge a set of unbroken catches is presentable for engagement by the fixed and projectable latch means on breakage of a catch of the set previously engaged by said latch means.

Claim 10

A pressure gauge assembly according to claim 7, including in the bracket member a plurality of spaced apertures each interrupting one of the passages therein, valve means in each aperture and spring-urged for shutting off transmission therethrough and the related passage of pressure from one of the pressure lines to the gauge, plug means normally inserted in each aperture from an end of the bracket means mounting the projectable latch means and acting on the valve means in said aperture for holding the related passage open, cam means for actuating the projectable latch means, and having an operating handle and a knob on each plug and normally overlapping said operating handle for locking the projectable latch means in retracted position and the gauge against release from the bracket member except on removal of the plugs and closing of the passages by the valve means.

Claim 11

A preserve gauge assembly according to claim 3, wherein each tube means is a rollpin.