US3747892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic valve
Assignee: STEINEN Manufacturing CO WM
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Filing: 1972-01-27
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Granted: 1973-07-24
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Expires: 1992-01-27
Abstract
Abstract A magnetically driven valve structure having a driving sleeve magnet operated by a motor and a driven magnet co-axial with the driving magnet connected to a valve. The housing for the motor and the driving magnet is separable from the valve structure to permit soldering the valve structure into a fluid circuit without deleterious effect on the motor, motor controls and driving magnet. The basic valve structure is a forging having a platform supporting the housing. The housing is centered on the forging equidistant from the ends thereof. The driven magnet is housed in a hat-like non-magnetic cylindrical enclosure on the forging, the flanges of the hat being sealed to the forging by a rolled over lange of the forging and an O-ring gasket. The driving magnet is compliantly connected to the motor to permit the driving magnet to align itself properly on the outside of the hat-like enclosure and with the driven magnet. The valve is a Teflon coated gate valve which is longitudinally compliantly mounted with respect to the driven magnet to permit the valve to seat properly without restraint. The valve is gasketed in its seat by an O-ring held by the valve which may ride vertically, with the valve, in an annular bore in the valve seat.
Inventors
- 👤 O Gigantino
- 👤 V Parrill
- 👤 L Gigantino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:06
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
186 words
In a valve structure having a substantially longitudinal cylindrical base, said base having a longitudinal bore terminating in influent and effluent ports connectable in a fluid circuit, a valve seat normal to said bore and situated between said ports, a rotatable valve in said valve seat, a driven magnet, said rotatable valve being connected to said drive magnet, said cylindrical base having a tangential platform, an opening in said platform communicating with said bore and valve seat, a cylindrical hat-like structure of non-magnetic material secured at said opening and containing said driven magnet, said cylindrical hat-like structure being sealed to said platform, and a housing supported on said platform, a driving motor carried in said housing, a cylindrical driving magnet in said housing compliantly connected to and driven by said motor, said driving magnet surrounding said cylindrical hat-like structure and establishing a driving magnetic connection to said driven magnet, the housing being provided with an additional platform of insulating material extending substantially parallel to the first mentioned platform, said motor being mounted on said claim platform on the side thereof remote from the first mentioned platform.
Claim 2
Dependent Claim
70 words
The valve structure of claim 1 having a gear train connected to the motor, and a shaft connected to the gear train and controls for the motor, said gear train and controls being mounted on the same side of the additional platform as the motor, and a shaft extending from the gear train through the additional platform, the driving magnet being compliantly connected to said shaft below said additional platform.
Claim 3
Dependent Claim
60 words
The valve structure of claim 2 wherein said housing is removable and replaceable on said first mentioned platform; the said housing together with the motor, gear train, controls, shaft and driving magnet being removable from the longitudinal cylindrical base to permit heat generating operations to be performed on the valve structure with the said housing and elements contained thereby removed.
Claim 4
Dependent Claim
213 words
In a valve structure having a substantially longitudinal cylindrical base, said base having a longitudinal bore terminating in influent and effluent ports connectable in a fluid circuit, a valve seat normal to said bore and situated between said ports, a rotatable valve in said valve seat, a driven magnet, said rotatable valve being connected to said driven magnet, said cylindrical base having a tangential platform, an opening in said platform communicating with said bore and valve seat, a cylindrical hat-like structure of non-magnetic material secured at said opening and containing said driven magnet, said cylindrical hat-like structure being sealed to said platform, and a housing supported on said platform, a driving motor carried in said housing, a cylindrical driving magnet in said housing compliantly conNected to and driven by said motor, said driving magnet surrounding said cylindrical hat-like structure and establishing a driving magnetic connection to said driven magnet, the rotatable valve being a Teflon coated gate valve having an annular O-ring carried thereby at the section opposite the end connected to the driven magnet, and an annular recess in the valve seat wider than the O-ring, the O-ring engaging the base of said recess, the width of said recess permitting said gate valve to move axially with respect to said valve seat.
Claim 5
Dependent Claim
213 words
In a valve structure having a substantially longitudinal cylindrical base, said base having a longitudinal bore terminating in influent and effluent ports connectable in a fluid circuit, a valve seat normal to said bore and situated between said ports, a rotatable valve in said valve seat, a driven magnet, said rotatable valve being connected to said driven magnet, said cylindrical base having a tangential platform, an opening in said platform communicating with said bore and valve seat, a cylindrical hat-like structure of non-magnetic material secured at said opening and containing said driven magnet, said cylindrical hat-like structure being sealed to said platform, and a housing supported on said platform, a driving motor carried in said housing, a cylindrical driving magnet in said housing compliantly conNected to and driven by said motor, said driving magnet surrounding said cylindrical hat-like structure and establishing a driving magnetic connection to said driven magnet, the rotatable valve being a Teflon coated gate valve having an annular O-ring carried thereby at the section opposite the end connected to the driven magnet, and an annular recess in the valve seat wider than the O-ring, the O-ring engaging the base of said recess, the width of said recess permitting said gate valve to move axially with respect to said valve seat.
Claim 6
Dependent Claim
258 words
In a valve structure having a substantially longitudinal cylindrical base, said base having a longitudinal bore terminating in influent and effluent ports connectable in a fluid circuit, a valve seat normal to said bore and situated between said ports, a rotatable valve in said valve seat, a driven magnet, said rotatable valve being connected to said driven magnet, said cylindrical base having a tangential platform, an opening in said platform communicating with said bore and valve seat, a cylindrical hat-like structure of non-magnetic material secured at said opening and containing said driven magnet, said cylindrical hat-like structure being sealed to said platform, and a housing supported on said platform, a driving motor carried in said housing, a cylindrical driving magnet in said housing compliantly connected to and driven by said motor, said driving magnet surrounding said cylindrical hat-like structure and establishing a driving magnetic connection to said driven magnet, the compliant connection between the motor and the driving magnet comprising a shaft driven by the motor; a carrier for the driving magnet, and an opening in said carrier, the shaft extending through said opening, the opening being circular and the shaft having a rectangular cross-section; means supporting the carrier on the end of said shaft and permitting the carrier and driving magnet to rock on said shaft, the driving magnet being fixed with respect to said carrier, and a driving connection between the shaft and carrier comprising projections in the opening in the carrier extending in the path of rotational movement of an edge of said rectangular shaft.
Claim 7
Dependent Claim
258 words
In a valve structure having a substantially longitudinal cylindrical base, said base having a longitudinal bore terminating in influent and effluent ports connectable in a fluid circuit, a valve seat normal to said bore and situated between said ports, a rotatable valve in said valve seat, a driven magnet, said rotatable valve being connected to said driven magnet, said cylindrical base having a tangential platform, an opening in said platform communicating with said bore and valve seat, a cylindrical hat-like structure of non-magnetic material secured at said opening and containing said driven magnet, said cylindrical hat-like structure being sealed to said platform, and a housing supported on said platform, a driving motor carried in said housing, a cylindrical driving magnet in said housing compliantly connected to and driven by said motor, said driving magnet surrounding said cylindrical hat-like structure and establishing a driving magnetic connection to said driven magnet, the compliant connection between the motor and the driving magnet comprising a shaft driven by the motor; a carrier for the driving magnet, and an opening in said carrier, the shaft extending through said opening, the opening being circular and the shaft having a rectangular cross-section; means supporting the carrier on the end of said shaft and permitting the carrier and driving magnet to rock on said shaft, the driving magnet being fixed with respect to said carrier, and a driving connection between the shaft and carrier comprising projections in the opening in the carrier extending in the path of rotational movement of an edge of said rectangular shaft.
Claim 8
Dependent Claim
63 words
The valve structure of claim 5 in which said projections on said carrier are located 180* from each other to permit lost motion of said driving magnet due to magnetic reaction in the same direction ahead of said shaft so that thereafter said shaft driven by said motor will catch up to and continue to drive said driving magnet in the same direction.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |