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Class 267/1.5 - PACKING EXPANDER OR CONSTRICTOR


Subclass of Class 267 - Spring devices
Definition: Structure adapted to bias a packing element in a radial
No. of patents: 62
Last issue date: 08/26/2008


1    
NumberTitleIssue Date
7416770Reinforcement ring
A reinforcement ring, includes an annular coil spring with a core unit arranged inside to prevent deforming or twisting of the ring under load. The core unit is formed from a chain of interlinked elements, each having a male part and a female part; the male parts of...
08/26/2008
7316593Electrical connector with embedded canted coil spring
A female electrical connector and method of using same includes a body having a bore therethrough for receiving electrical plug and a helical groove formed in the bore. A canted coil spring is disposed in the helical groove and protrudes therefrom for providing both...
01/08/2008
7055812Canted coil springs various designs
A coil spring includes a plurality of primary wire coils and a plurality of secondary wire coils, the primary and secondary coils being contiguous and differentiated from one another by a dimensional size in order to provide variable force and variable deflection.
06/06/2006
6032710Elastic element and shock-absorbing devices, particularly vehicle tires, constructed therewith
An elastic element useful for constructing shock-absorbing devices, is elongated and continuously curved into an endless double-loop formation including an outer loop merging with an inner loop located within and offset from the plane of the outer loop. A...
03/07/2000
5599027Gasket assembly for sealing electromagnetic waves
A gasket assembly for sealing electromagnetic waves includes a canted-coil spring for blocking the propagation of electromagnetic waves therepast. The canted-coil spring includes a plurality of individual coils canted along a centerline thereof. A groove ...
02/04/1997
5542682Slant coil spring and seal
A coil spring including a plurality of coils connected to one another in series. Each of the coils has a front portion and a rear portion. The front portion of at least one of the coils includes a first section disposed at a first predetermined angle rela...
08/06/1996
5344161Spring for centering two annular bodies relative to each other
A spring centering device for centering two annular bodies relative to one another. The device including a spring (22) with a central spine (20) and multiple fingers (24) extending from the spine (20). Alternatively, the device includes a spring with a ce...
09/06/1994
5213342Lip seal with radially compressible support band
A seal assembly includes an annular elastomeric seal element, and a resilient annular reinforcing element nested within the elastomeric element to exert a radial biasing force that increases the effective sealing force even in the presence of shrinkage, w...
05/25/1993
5203849Canted coil spring in length filled with an elastomer
A spring assembly includes a plurality of coils interconnected with one another in a spaced-apart relationship for causing the spring assembly to exert as force in a loading direction approximately normal to a tangent to a centerline of the plurality of c...
04/20/1993
5195758Three-piece oil control ring assembly
A three-piece oil control ring includes a pair of radially split, generally flat annular rails which are supported in an axially spaced relationship by an annular spacer-expander. The expander defines alternating, axially symmetrical and generally U-shape...
03/23/1993
5193820Three-piece type oil ring assembly
A three-piece type oil ring assembly adapted to be fitted in an oil ring groove of a piston disposed within a cylinder comprises a spacer expander in the form of a gapped annulus made of section steel having substantially H-shaped radial cross section, an...
03/16/1993
5161806Spring-loaded, hollow, elliptical ring seal
A canted-coil spring-loaded ring seal assembly including a plurality of coils having a major and a minor axis and canted along a center line defined by an intersection of the major and minor axes along with an elastic material, disposed around and between...
11/10/1992
5160122Coil spring with an elastomer having a hollow coil cross section
A spring assembly includes a plurality of coils interconnected with one another in a spaced-apart relationship for causing the spring assembly to exert a force in a loading direction approximately normal to a tangent to a centerline of the plurality of co...
11/03/1992
5139243Axial canted coil springs in sinusoidal form
A length of canted coil spring is disclosed which is suitable for forming a stable, when unsupported, circular axially loadable spring. The length of spring includes a plurality of elliptical coils canted along a coil centerline with the coil centerline f...
08/18/1992
5139276Canted coil spring radially loaded while in a cavity
A canted coil spring assembly includes a plurality of coils having major and minor axes and canted along a center line defined by an intersection of the major and minor axes. The coils are interconnected in a manner forming a radial gartertype canted coil...
08/18/1992
5108078Canted-coil spring loaded while in a cavity
A canted coil spring assembly includes a plurality of coils having a major and a minor axis and canted along a centerline defined by an intersection of the major and minor axis. A trailing portion of each coil is defined by a back angle which determines t...
04/28/1992
5087055Steel oil ring assembly
A steel oil ring assembly having an upper rail, a lower rail and an annular space-expander embraced by the rails and having radially extending or axially extending corrugations. The spacer is split at one circumferential location to form abutting end port...
02/11/1992
5054794Clamping band for gaskets and the like and expansion means therefor
An expansion band having a spanning member whose free end is provided with a locking tab for cooperation with a locking surface having a plurality of selectable locking slots. A guide channel secured to the band cooperates with the band to define a guidew...
10/08/1991
4974821Canted-coil spring with major axis radial loading
A canted-coil spring includes a plurality of coils having a major and a minor axis and canted along a centerline defined by an intersection of the major and minor axis. The coils are interconnected in a manner forming a garter-type resilient canted-coil s...
12/04/1990
4934666Coiled spring electromagnetic shielding gasket
An electromagnetic shielding gasket is provided which includes a coil spring for blocking the propagation of electromagnetic waves therepast. The coil spring includes a plurality of individual coils which provide shielding of electromagnetic waves indepen...
06/19/1990
4907788Dual concentric canted-coil spring apparatus
Annular coil spring apparatus is provided which includes a first annular spring with a plurality of coils canted along a centerline with a trailing portion of each coil and a leading portion of each coil defined by a back angle and front angle, respective...
03/13/1990
4893795Radially loaded canted coiled spring with turn angle
A radially resilient canted coiled springs includes a plurality of coils canted along a centerline thereof with each coil having a trailing portion and a leading portion. The disposition of the trailing portion is defined by a back angle between the trail...
01/16/1990
4830344Canted-coil spring with turn angle and seal
A garter-type axially resilient coil spring includes a plurality of coils canted along a centerline thereof with each coil having a trailing portion and a leading portion. The disposition of the trailing portion is defined by a back angle between the trai...
05/16/1989
4826144Inside back angle canted coil spring
A garter-type axially resilient coil spring includes a plurality of coils canted along a centerline thereof with each coil having a trailing portion and leading portion. The disposition of the trailing portion is defined by a back angle between the traili...
05/02/1989
4809989Coil spring supported sealing element and device
An improved sealing device, which when positioned inside a flow conductor and operated, compresses and expands an improved resilient element into fluid sealing engagement between the sealing device and the inside of the flow conductor. The sealing device ...
03/07/1989
4799694Piston ring and method of making the same
A piston ring assembly has an expander spring of sheet material bent into an annular configuration. The expander spring has a circumferential series of radially oriented tongues and each tongue has an approximately axially bent leg. The tongues and legs a...
01/24/1989
4798391Three-piece oil-ring with a slot
A three-piece oil-ring comprises a pair of side rails and an expander disposed between the side rails. The expander extends in a circumferential direction and has waves in a radial direction. At both sides of radially inner portions of the expander side r...
01/17/1989
4796898Oil scraper piston ring with elliptical oil vent holes
Oil scraping piston ring of profiled steel having punched-in oil vent holes. To keep at a minimum the bulging at the holes developed during coiling, the oil vent holes are given an elliptical or rhombic outline....
01/10/1989
4789164Sealing device
A duct seal (1) especially for sealing about four cables, contains a spring (8) which when operated radially expands that part of the duct seal that is to seal to a wall etc (2). The cables are sealed by heat-shrink outlets (7) of the duct seal (1). The s...
12/06/1988
4762329Spacer expander for piston rings
A spacer expander adapted for use in an oil ring assembly of an internal combustion engine comprising a split annular shaped spring body containing a plurality of lugs extending axially from the body to bear on a single rail or double side rails, the body...
08/09/1988
4722535Oil ring structure having reduced rigidity
An oil-ring comprising a pair of side rails and an expander disposed between the side rails. The expander extends in a circumferential direction and has waves in a radial direction. At both sides of radially inner portions of the expander, side rail engag...
02/02/1988
4695064Piston ring assembly and expander
A piston-and-ring assembly includes a generally cylindrical piston, a circumferential groove provided in the piston and having a bottom and two radial flanks forming opposite sides of the groove; and an expander spring ring accommodated in the groove and ...
09/22/1987
4659093Three-piece oil-ring with an inward protrusion
A three-piece oil-ring with a pair of side rails and an expander disposed between the side rails. The expander extends in a circumferential direction and has waves in a radial direction. Flat portions are located at radially inner portions of the expander...
04/21/1987
4655462Canted coiled spring and seal
A coiled spring includes a plurality of coils with each of the coils being interconnected with one another in a spaced-apart relationship and disposed in a preselected acute angle with the centerline of the coil spring for causing the coil spring to exert...
04/07/1987
4647072Repair sleeve for piping
The present invention relates to a repair sleeve comprising a flexible, hose-like main part (1) and a spiral spring (2), which, when the sleeve is mounted in a pipe line, pretensions the hose-like main part (1) into sealing engagement against the inner wa...
03/03/1987
4629198Oil scraper piston ring assembly
An oil scraper piston ring assembly includes an oil scraper ring received in a piston groove and being in circular contact with a first side wall of the groove; and a spring ring received in the groove between the oil scraper ring and a second side wall o...
12/16/1986
4606101Method of manufacturing a radially corrugated expander-spacer for a piston oil ring assembly
Method of manufacturing a radially corrugated expander-spacer for a piston oil ring assembly, having inner and outer crowns alternately and successively laid, which can prevent its both terminal ends from nesting together during assembling of the piston o...
08/19/1986
4602888Flexible metallic joint
The invention relates to a flexible metal joint in which two envelopes surrounding a metal core. The joint has, along its periphery which does not have an opening, at least two bosses, at which the envelope is not in contact with the joint core. A relativ...
07/29/1986
4585237Piston and oil control ring therefor
A piston having a ring groove therearound has a three part oil control ring in the groove. The ring includes an axially and radially corrugated expander and two flat annular rails retained by the sides of the groove. The radial wall thickness of the rails...
04/29/1986
4572520Multi-component steel piston ring with rotation preventing rivet
A piston ring for control of the oil on a cylinder wall that is comprised of thin upper and lower ring members disposed to contact the cylinder wall and an intermediate corrugated expander-spacer. The upper ring member has a headed rivet with the upper he...
02/25/1986
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