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Document |
Document Title |
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7178806 |
Cinchpac self-loading rotary shaft seal
A seal for a conveyor drive which has an elastomer which is compressed between a cap ring and a housing.
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7036824 |
Device for the float mounting a sealed housing
A device for float mounting a sealed housing around a rotating, deflecting shaft. A sealed housing is connected to a static part in such a way that it can yield radially as well as rotate around a...
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6871857 |
Mechanical sealing apparatus
Disclosed herein is a mechanical sealing device for preventing fluid leakage. The sealing device has a sealing chamber formed by a flange, a seal casing and a seal cover at a position outside a...
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6698764 |
Packing assembly
The invention provides a packing assembly for rotating and/or oscillating machine shafts arranged in a machine housing. The packing assembly comprises a packing accommodation unit floating on said...
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6640823 |
Fitting
A fitting including a housing ( 2 ), a rotatable body ( 4 ) which is situated in the housing and which may advantageously be constructed in the form of a conical plug, a bushing ( 18 ) provided in...
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6578850 |
Dynamic seal for a drive shaft
A dynamic seal for a drive shaft including a seal housing with at least one inlet for injecting a fluid, (i.e., a liquid or gas) into the seal. The seal also has an expeller device, such as an...
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6561517 |
Packing device for rotary valves
A packing device, for sealing a longitudinal shaft against leakage of a pressurized fluid, having an elongate valve housing with an annular internal chamber about a coaxial rotatable shaft. The...
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6412783 |
Self aligning stuffing box for pumpjacks
A self aligning stuffing box for pump jacks includes a first tubular body having an interior bore with internal stops. A second tubular body has a first end with a concave contact surface. The...
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6357756 |
Balance shaft seal clamp
A balance shaft seal retainer for retaining the front balance shaft seal of an engine oil pump. At least one bolt threaded within one or more apertures of the retainer and into the engine secures...
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6354597 |
Sealed rotating connection device allowing great motions
A rotating connection device forming a seal between an inner element ( 1 ) and an outer element ( 14 ) of larger diameter than the inner element, these two elements being co-axial, cylindrically...
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6328312 |
Shaft seal assembly
Shaft seal for sealing between a shaft (2) and a machine housing (3). A seal and bearing casing (10) surrounds the shaft (2) to be sealed off and contains a rolling-contact bearing device (11) and...
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6231048 |
Mechanical seal incorporating a pusher ring for safe and easy assembly and repair
An improved mechanical seal incorporating a pusher ring to hold the integral parts of the seal together, in lieu of a typical retaining ring and snap ring aligning and compressing the gland plate....
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5772218 |
Uniform compression gland seal assembly
A gland seal assembly for a slurry pump comprising a main body having a bore therethrough for receiving a rotatable shaft, a packing receiving zone within the bore, the packing including at least...
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5513556 |
Packing gland construction
An improved packing gland construction for a fluid cylinder that includes an angular elongated resilient sealing member disposed in contact with the piston rod of the cylinder. An end of the...
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5372352 |
Apparatus for sealing a fluid carrying device
A novel sealing arrangement for fluid carrying devices and particularly for plug type valves, such as retractable double block and bleed plug valves. The sealing arrangement of the present...
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5267736 |
Sealing apparatus for rotating shafts, in particular stern tube seal for the propeller shaft of a ship
A sealing apparatus for rotating shafts, in particular a stern tube seal for a propeller shaft of a ship with or without shaft bushings, with aligned gaskets resting on the shaft and located in a...
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5267533 |
Self-adjusting packing gland for sootblower
A self-adjusting joint packing for a sootblower of the type having a stationary feed tube gland with an overfitting lance tube which is moved within the combustion device to emit a blowing medium...
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5209497 |
Sealing apparatus for rotating shafts, in particular stern tube seal for the propeller shafts of a ship
Sealing device for rotating shafts, in particular stern tube seal for the propeller shafts of a ship, with a main seal and a backup seal, in which the main seal is designed as a rotating mechanical...
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5209496 |
Universal seal or packing gland
A universal gland defining a central opening for mounting the gland coaxially about a machine shaft to the machine housing, the mounting done with a plurality of bolts at bolt hole positions in the...
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5058668 |
Rod guide bearing assembly for oil well pumping apparatus
In well pumping apparatus in which a polished rod is arranged for extension through a stuffing box at the upper end of a wellhead, the stuffing box assembly having a pair of axially spaced bearing...
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4936592 |
Tightening arrangement for packing rings of a packing box
The present invention relates to a sealing arrangement for sealing a rotary shaft by means of several adjacent ring-type packings arranged in a packing box. The disadvantage of known arrangements...
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4878815 |
High pressure reciprocating pump apparatus
A high pressure reciprocating pump has a flange plate or mounting plate secured to the plunger end of a pump drive housing and a suction and discharge manifold is hingedly connected thereto. A...
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4844479 |
Structure of a gland packing box
A structure of a gland packing box is enhanced in the lubricating function and cooling function of the seal part, by forming at least one disclocating part for partly dislocating in the axial...
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4832352 |
Piston rod seal
This invention relates to a piston rod seal in which the rod along which leakage should be avoided is surrounded by a gland of a plastically deformable material. The gland is mounted at the high...
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4795171 |
Self-pressurized shaft or closure seal
A pressurized fluid housing (4) has an opening (6) for receiving a movable shaft or stem (2). A hold down plate or bonnet (8) covers the opening and has an aperture (14) through which the shaft...
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4745938 |
Outside seal and yoke valve
A valve of the outside seal and yoke variety is provided, with a seal between a bonnet base and a valve body being axially spaced between a valve seating member and mating threads on the valve body...
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4745944 |
Self-cleaning, fluid pressure biased gate valve
A drive shaft mounted for rotation about its axis within a gate valve casing terminates, internally within a valve chamber, in a radial arm which couples to a valve disk. The disk seats on the...
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4712772 |
Power hydraulic gear
A power hydraulic gear comprising a housing (1) which accommodates a piston (3) through which a traction guide member (7) is passed, and a mechanism for alternately engaging the piston (3) with the...
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4661044 |
Pump having a bushing removal mechanism
A mechanism is disclosed for use in permitting inspection and/or replacement of a seal chamber bushing of a centrifugal or axial flow pump at a point of pump installation and without necessitating...
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4630629 |
Valve with compressible valve stem and valve body seals
A valve is provided with improved bonnet-stem and bonnet-valve body seals. Both non-metallic seals may be simultaneously compressed by threading the bonnet to the valve body, with a valve stem seal...
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4600032 |
Rotary shaft seal assembly
A rotary valve having a housing enclosing a drive shaft and a rotor assembly. The housing has an inlet, an outlet, an access end, and a detachable closure plate for closing the access end. The...
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4577873 |
Dual valve stem packing arrangement
Valve packing comprising one lower, adjustable, compressible, solid ring set followed by an upper, non-adjustable, pre-compressed, flexible, plastic v-ring set; both packing sets inter-spaced by a...
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4512550 |
Sealing means for valve spindle
A large manually operated leak-proof corrosion-proof low-cost shut-off or stop valve for handling high pressure refrigerant liquids and/or gases comprises a valve body formed of two sheet metal...
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4468039 |
Packing ring cartridge with adjusting screws
A pressure energizable packing assembly (47) for sealing the stem and valve body of a high pressure valve. The assembly comprises one or more sets (60, 61) of packing rings (62) which are adapted...
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4411438 |
Packing gland
A stuffing box assembly comprises a housing including a main body, a tubular neck extending outwardly from the main body, and a housing flange extending generally radially outwardly from the neck...
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4408769 |
Stuffing box with outer flexible tube to allow shaft gyratory movements
Stuffing box, comprising two hollow annuli spaced apart and adapted to surround a shaft spaced from it, the annuli having annular flanges projecting towards each other. A flexible tube is provided...
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4407510 |
Adjustable packing gland assembly for movable blade damper
A packing gland assembly for a movable blade damper comprises a packing gland sleeve and a packing gland cap. The cap serves to confine a packing material between the packing gland sleeve and a...
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4362305 |
Pump sealing device
A pump sealing device includes a packing box whose packing (3) is disposed around a drive shaft (2) of the pump where the shaft passes through the pump body (1). The packing is acted on by a gland...
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4360186 |
Swivel joint
A Swivel Joint for use on producing wells which are being pumped, having an upper and a lower annular member, in juxtaposition, with a coil spring separating the members, the lower member having a...
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4356832 |
High pressure bonnetless valve
A method of removing from a valve, a backseat and packing means, without the necessity of first removing the packing means from the body of the valve so as to provide access for removal of the...
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4351512 |
Valve with yoke and captive gland wrench
A clamp yoke valve has a yoke member engaged with the valve body about its bonnet opening, a bonnet sealing the bonnet opening and including a packing cartridge chamber opening outwardly of the...
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4283062 |
Hydraulic injection molding machine stuffing box
A stuffing box as applied to the sliding joint between the piston (ram) and cylinder of a hydraulic ram assembly in a hydraulic injection molding machine has a packing retainer assembly with a...
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4269417 |
Seal gland
A seal gland comprising an annular seal engaging surface and, radially outward of the surface, a mounting portion comprising one pair of bolt positions comprising radially elongated slots...
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4200297 |
Side entry clamp and packoff
Apparatus is provided for permitting a communication wireline to be suspended in a borehole along the outside of a drill stem for subsequent side entry therein and connection to a steering tool for...
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4185807 |
Plastic valve
An all-plastic valve including a molded plastic housing, a molded plastic retaining nut, and a molded plastic valve stem.
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4185839 |
Packing gland for pump shaft seal
A progressing cavity, positive displacement rotary pump for liquid or semiliquid material, having a specially designed flexible coupling shaft for connecting a drive shaft to an orbital rotor. The...
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4121840 |
Seal assembly
A seal assembly for use in a cable cylinder to form an effective seal about a generally cylindrical cable section. The seal assembly includes primary and secondary seal members disposed on opposite...
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4103909 |
Seal for a drive journal of a ball valve
A seal for a drive journal of a ball valve. The elements which directly carry out the sealing action are arranged below a thrust collar which is directed against the cover of the ball valve and is...
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4093239 |
Piston rod sealing arrangement for a stirling engine
A sealing arrangement for the light working gases of a Stirling engine comprises, surrounding the piston rod below the cylinder chamber, a block seal portion and a liquid seal portion, the latter...
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4060353 |
Rotary pump for hot pitch, asphalt and like viscous solidifiable material
A rotary pump for hot pitch, asphalt and like viscous solidifiable material, having a cylindrical outer extension on a packing gland to provide an elongated passage around a driving shaft, thereby...
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