Class 277/520 - Particular gland feature

Subclass of Class 277 - Seal for a joint or juncture
Definition: Seal for the gland and packing box wherein the member that
No. of patents: 67
Last issue date: 12/04/2007

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Number	Title	Issue Date
7303495	Continuously variable transmission case cover A case cover for a continuously variable transmission includes a wall having a plurality of fastening elements thereon and at which a sheave assembly is rotatably mountable. The wall forms at least a portion of a cavity for containing at least a portion of the sheav...	12/04/2007
7236166	High-resolution rapid manufacturing The present invention is a method for forming an object, the method comprising jetting a first material to form a plurality of layers that define a support structure increment, and extruding a second material to form a layer of the object. The layer of the object su...	06/26/2007
7219878	Live loaded packing for valve In accordance with the present invention, there is provided a lie loaded packing assembly for a valve which comprises a valve body defining a passage having a valve stem moveably disposed therein and selectively moveable between open and closed positions. Extending ...	05/22/2007
7195246	Sealing material A sealing material for sealing liquid composed of a seal main body of resin, having a U-shaped cross section and a concave groove opening to an axis direction, and an O-ring of rubber fit to the concave groove of the seal main body used for medical appliances and pa...	03/27/2007
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. ...	02/20/2007
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 shaft axis at least to a small extent. ...	05/02/2006
6926492	Suction housing for rotor/stator pump A pump of the rotor/stator type for wet cementitious material includes a suction housing for receiving and directing the material into a rotor/stator combination for delivery to the location of use. The suction housing is in the form of a rectangular closed structur...	08/09/2005
6910692	Composite elastomeric seal for sealing fluid lines A composite elastomeric seal for sealing fluid line members is provided. The composite seal comprises an outer U-shaped seal body and an inner elastomeric portion. The U-shaped seal body comprises inner and outer extending arms, each arm having a shaped contour and ...	06/28/2005
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 gland ring. This gland ring is used for holding the gland packings insta...	03/29/2005
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 shaft. The packing accomodation unit is supported on the h...	03/02/2004
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 the housing to floatingly mount and seal the rotatable body (4),...	11/04/2003
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 expeller ring mounted on the drive shaft, for expelling the in...	06/17/2003
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 chamber has an inner end with an annular stationary packing s...	05/13/2003
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 second tubular body is telescopically received within the firs...	07/02/2002
6382940	High pressure plunger pump housing and packing A Y-block fluid section plunger pump housing has a cylinder bore which is transversely elongated at its intersection with suction and discharge bores to provide stress relief and a reduction in housing weight. An integral suction valve retainer arm furthe...	05/07/2002
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 the seal retainer on the oil pump housing. The semi-circula...	03/19/2002
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 symmetric and rotating in relation to one another. It comprises ...	03/12/2002
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 a row of lip seals (13), the sealing lips of which engage ...	12/11/2001
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. The improvement consists of a pusher ring, fixedly attache...	05/15/2001
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 two packing rings and a packing sleeve surrounding the pack...	06/30/1998
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 sealing member facing the interior of the cylinder is provided w...	05/07/1996
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 invention adds secondary and tertiary seals to the conventional pa...	12/13/1994
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 stationary support system, preferably of an axial face seal...	12/07/1993
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 for cleaning purposes. The joint packing gland mechanism ca...	12/07/1993
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 housing. A gland body includes a mounting surface for pla...	05/11/1993
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 seal or as a lip seal, and the backup seal is designed as...	05/11/1993
5129625	Live load packing system An improved live load packing system for sealing an operating valve member in a fluid valve. A packing follower includes a base and a guide sleeve with a non-metallic inner liner adapted for slidable engagement on the operating valve member. A series of B...	07/14/1992
5129624	Valve stem sealing means for prevention of fugitive emissions A valve stem sealing means comprising first and second seal assemblies, the first seal assembly being proximate a valve plug and comprising an expandable ring adapted to be expanded by pressure within the valve to effect a first seal around the valve stem...	07/14/1992
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 assemblies and packing coils positioned between rod guide ...	10/22/1991
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 is that, in box-type sealings, only the packing rings dispo...	06/26/1990
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 stuffing box in bores in the flange plate has a central bore r...	11/07/1989
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 direction a gland packing of the gland packing box. The disloca...	07/04/1989
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 pressure side of a wall through which the piston rod is pass...	05/23/1989
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 enters the housing. The hold down plate further includes a ri...	01/03/1989
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 valve casing and is movable between an overlying position rela...	05/24/1988
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 and bonnet base. An end of at least one packing bolt is p...	05/24/1988
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 traction member (7). The traction member (7) is a rope se...	12/15/1987
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 disassembly of the pump rotating assembly. The mechanism i...	04/28/1987
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 sandwiched between the bonnet and an axially movale retai...	12/23/1986
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 drive shaft, which is journalled in the housing, has a shaft e...	07/15/1986

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Class 277/520 - Particular gland feature