Patent US3582041A successfully refreshed from Google Patents.
US3582041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve packing box assembly
Assignee: Hills Maccanna Co
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Filing: 1969-02-14
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Granted: 1971-06-01
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Expires: 1989-02-14
Abstract
Abstract A packing box assembly for a valve unit of the type including a body member having a passageway therethrough and an aperture in said body member communicating with said passageway, a valve element disposed within said body member for selective blocking and unblocking of said passageway, and stem means interconnected with said valve element for the operation thereof and extending outwardly through said aperture. The packing box assembly for said unit is comprised of a pair of annular seal ring seats axially spaced and disposed about said aperture, said seal ring seats cooperating with the stem to define seal ring-receiving chambers, and a seal ring disposed in each said chamber. Each said seal ring is in the form of a frustoconical member having cylindrical inner and outer peripheral surfaces, and being constructed of a resilient, plasticlike material. The seal ring members and the seal ring receiving chambers are constructed such that upon assembly of said seal rings in said chambers the cylindrical inner and outer peripheral surfaces of said rings will be in sealing engagement with the stem and the seal ring seat, respectively, and the drawing of said packing box assembly into tight sealing engagement places said seal ring members in compression. The packing box assembly also has the seal ringreceiving chambers disposed such that the compressive forces set up during final assembly will directly oppose and preclude rocking of the stem with respect to the body member.
Inventors
- 👤 Werner K Priese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:09
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/16; F16K41/02; F16K41/04; F16K41/043; F16K41/046
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
274 words
A valve unit comprising: a body member having a passageway therethrough and including a wall perforated with a stem-passing aperture; a valve element disposed within said body member and being rotatable for opening and closing said passageway; stem means interconnected with said valve element and extending outwardly through said aperture, said stem having an outer end portion connectable with means for rotating the stem and the associated valve element; said body member including a pair of annular oppositely disposed outwardly facing seal ring seats, each said seat including an annular seal-engaging surface and a cylindrical sidewall coaxial with said aperture; said stem means including a second pair of axially spaced annular seal-engaging surfaces which are complementary to said annular surfaces of said seats whereby said stem means and said seal ring seats cooperate to define a pair of annular seal-seating chambers; an annular seal ring disposed in each said chamber, each said ring in the unstressed condition including substantially cylindrical inner and outer peripheral surfaces and substantially parallel, frustoconical upper and lower surfaces, said rings being dimensioned with respect to said chambers such that upon initial assembly said inner and outer cylindrical surfaces will be in sealing engagement with the stem means and said cylindrical sidewalls respectively, with final assembly of said unit elastically deforming said seal rings to bring the said annular sealing engaging surfaces into contiguous contact with upper and lower surfaces of said seal rings while maintaining the inner and outer peripheral surfaces in engagement with the stem and said cylindrical sidewalls, such that said rings are placed in compression, with the compressive forces established opposing rocking movement of said stem.
Claim 2
Dependent Claim
274 words
A valve unit comprising: a body member having a passageway therethrough and including a wall perforated with a stem-passing aperture; a valve element disposed within said body member and being rotatable for opening and closing said passageway; stem means interconnected with said valve element and extending outwardly through said aperture, said stem having an outer end portion connectable with means for rotating the stem and the associated valve element; said body member including a pair of annular oppositely disposed outwardly facing seal ring seats, each said seat including an annular seal-engaging surface and a cylindrical sidewall coaxial with said aperture; said stem means including a second pair of axially spaced annular seal-engaging surfaces which are complementary to said annular surfaces of said seats whereby said stem means and said seal ring seats cooperate to define a pair of annular seal-seating chambers; an annular seal ring disposed in each said chamber, each said ring in the unstressed condition including substantially cylindrical inner and outer peripheral surfaces and substantially parallel, frustoconical upper and lower surfaces, said rings being dimensioned with respect to said chambers such that upon initial assembly said inner and outer cylindrical surfaces will be in sealing engagement with the stem means and said cylindrical sidewalls respectively, with final assembly of said unit elastically deforming said seal rings to bring the said annular sealing engaging surfaces into contiguous contact with upper and lower surfaces of said seal rings while maintaining the inner and outer peripheral surfaces in engagement with the stem and said cylindrical sidewalls, such that said rings are placed in compression, with the compressive forces established opposing rocking movement of said stem.
Claim 3
Dependent Claim
26 words
A valve unit as defined in claim 1 wherein said annular seal-engaging surfaces of the seal ring seats and the stem are of a frustoconical configuration.
Claim 4
Dependent Claim
26 words
A valve unit as defined in claim 2 wherein the conical taper of said sealing ring members is less abrupt than that of said annular surfaces.
Claim 5
Dependent Claim
24 words
A valve unit as defined in claim 1 wherein said annular seal-engaging surfaces are disposed in planes perpendicular to the axis of said stem.
Claim 6
Dependent Claim
155 words
A valve unit comprising body means having a passageway therethrough and including a wall perforated with a stem-passing aperture, a valve element disposed within said body means and being rotatable for opening and closing said passagewAy, a stem interconnected with said valve element and extending outwardly through said aperture, said stem having an outer end portion connectable with means for turning the stem for rotating the valve element, said body means including a pair of axially spaced frustoconical seal-engaging surfaces encircling said stem, said stem having a pair of correspondingly shaped surfaces opposing said frustoconical surfaces on the body means, and an annular frustoconical seal ring member disposed and compressed between each said pair of opposed surfaces, said frustoconical surfaces on the body means and the stem converging toward the axis of said stem whereby the compressive forces stored in said sealing members will directly oppose rocking of said stem relative to said body means.
Claim 7
Dependent Claim
155 words
A valve unit comprising body means having a passageway therethrough and including a wall perforated with a stem-passing aperture, a valve element disposed within said body means and being rotatable for opening and closing said passagewAy, a stem interconnected with said valve element and extending outwardly through said aperture, said stem having an outer end portion connectable with means for turning the stem for rotating the valve element, said body means including a pair of axially spaced frustoconical seal-engaging surfaces encircling said stem, said stem having a pair of correspondingly shaped surfaces opposing said frustoconical surfaces on the body means, and an annular frustoconical seal ring member disposed and compressed between each said pair of opposed surfaces, said frustoconical surfaces on the body means and the stem converging toward the axis of said stem whereby the compressive forces stored in said sealing members will directly oppose rocking of said stem relative to said body means.
Claim 8
Dependent Claim
38 words
A valve unit as defined in claim 5 wherein said stem has a substantially cylindrical surface, and said seal rings respectively include inner substantially cylindrical edge surfaces in sealing engagement with said cylindrical surface of the valve stem.
Claim 9
Dependent Claim
46 words
A valve unit as defined in claim 5, wherein said stem includes annular groove means disposed generally midway between said seal rings and wherein said valve unit further comprises an O-ring disposed in said annular groove means sealingly engaging said body means between said seal rings.
Claim 10
Dependent Claim
228 words
A valve unit comprising: a body member having a passageway therethrough and including a wall perforated with a stem passing aperture; a valve element disposed within said body member and being rotatable for opening and closing said passageway; stem means interconnected with said valve element and extending outwardly through said aperture, said stem having an outer end portion connectable with means for rotating the stem and the associated valve element; said body member including a pair of annular oppositely disposed outwardly facing seal ring seats, each said seat including an annular seal-engaging surface and a cylindrical sidewall coaxial with said aperture; said stem means including a second pair of axially spaced annular surfaces which are complementary to said annular surfaces of said seats whereby said stem means and said seal ring seats cooperate to define a pair of annular seal-seating chambers; an annular seal ring disposed in each said chamber, each said ring in the unstressed condition including substantially cylindrical inner and outer peripheral surfaces and substantially parallel, frustoconical upper and lower surfaces, the radial dimensions of said frustoconical upper and lower surfaces being slightly greater than that of the corresponding seal-seating chamber, whereby upon initial assembly of said seals in said chambers they are deformed elastically from their original configuration with the cylindrical inner and outer surfaces thereof sealingly engaged with the corresponding surfaces of said chamber.
Claim 11
Dependent Claim
228 words
A valve unit comprising: a body member having a passageway therethrough and including a wall perforated with a stem passing aperture; a valve element disposed within said body member and being rotatable for opening and closing said passageway; stem means interconnected with said valve element and extending outwardly through said aperture, said stem having an outer end portion connectable with means for rotating the stem and the associated valve element; said body member including a pair of annular oppositely disposed outwardly facing seal ring seats, each said seat including an annular seal-engaging surface and a cylindrical sidewall coaxial with said aperture; said stem means including a second pair of axially spaced annular surfaces which are complementary to said annular surfaces of said seats whereby said stem means and said seal ring seats cooperate to define a pair of annular seal-seating chambers; an annular seal ring disposed in each said chamber, each said ring in the unstressed condition including substantially cylindrical inner and outer peripheral surfaces and substantially parallel, frustoconical upper and lower surfaces, the radial dimensions of said frustoconical upper and lower surfaces being slightly greater than that of the corresponding seal-seating chamber, whereby upon initial assembly of said seals in said chambers they are deformed elastically from their original configuration with the cylindrical inner and outer surfaces thereof sealingly engaged with the corresponding surfaces of said chamber.
Claim 12
Dependent Claim
222 words
A packing box construction for a valve unit of the type including a body member with a passageway therein, a valve element disposed for selective blocking and unblocking of said passageway, an aperture in said body member, and stem means within said aperture and being operably associated with said valve element for movement thereof upon rotation of said stem means, said packing box construction comprising: a pair of annular seal ring seats formed in the body member, said seats being contiguous to and axially spaced along the length of said aperture; a pair of axially spaced annular surfaces on said stem means cooperating with said seal ring seats to define a pair of seal ring-receiving chambers; an annular seal ring member disposed in each said chamber, each said seal ring being initially formed as a frustoconical member from a resilient, plasticlike material, and having cylindrical inner and outer peripheral surfaces, the radial distance between said peripheral surfaces along the seal being greater than the radial width of said chamber, the difference such that said seals must be deformed slightly upon initial assembly in said chamber witH said inner and outer peripheral surfaces sealingly engaging the stem and the seal ring seat, respectively; and means to draw the packing assembly into tight sealing engagement whereby said seal ring will be placed in compression.
Claim 13
Dependent Claim
222 words
A packing box construction for a valve unit of the type including a body member with a passageway therein, a valve element disposed for selective blocking and unblocking of said passageway, an aperture in said body member, and stem means within said aperture and being operably associated with said valve element for movement thereof upon rotation of said stem means, said packing box construction comprising: a pair of annular seal ring seats formed in the body member, said seats being contiguous to and axially spaced along the length of said aperture; a pair of axially spaced annular surfaces on said stem means cooperating with said seal ring seats to define a pair of seal ring-receiving chambers; an annular seal ring member disposed in each said chamber, each said seal ring being initially formed as a frustoconical member from a resilient, plasticlike material, and having cylindrical inner and outer peripheral surfaces, the radial distance between said peripheral surfaces along the seal being greater than the radial width of said chamber, the difference such that said seals must be deformed slightly upon initial assembly in said chamber witH said inner and outer peripheral surfaces sealingly engaging the stem and the seal ring seat, respectively; and means to draw the packing assembly into tight sealing engagement whereby said seal ring will be placed in compression.
Claim 14
Dependent Claim
74 words
A packing box construction as defined in claim 9 wherein said annular surfaces on the stem means are frustoconical, and said seal ring seats include a correspondingly shaped annular frustoconical surface opposing said stem means surfaces, said surfaces converging in a direction toward the axis of said stem means, such that the compressive forces established in said seal rings directly oppose rocking of said stem means relative to the body of the valve unit.
Claim 15
Dependent Claim
26 words
A packing box construction as defined in claim 10 wherein the conical taper of said sealing rings is less abrupt than that of said frustoconical surfaces.
Claim 16
Dependent Claim
36 words
A packing box construction as defined in claim 9 wherein said annular surfaces on the stem means are substantially planar, and said seal ring seat includes an annular, planar surface opposing said planar stem means surfaces.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |