US3757263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid valve operator
Assignee: Wells Fargo Bank NA
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Filing: 1972-07-24
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Granted: 1973-09-04
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Expires: 1992-07-24
Abstract
Abstract An improved solenoid valve operator is provided which is particularly suitable for use in conjunction with valves in vending machines for hot liquids, such as coffee, or the like. The valve operator of the invention includes a plastic molded casing which encloses the operating components of the solenoid operator, and which includes a tubular member that contains the core of the solenoid and the slidable plunger. The plastic casing defines a peripheral channel about the end of the tubular member, and an O-ring is received in the peripheral channel. The O-ring provides a seal between the plastic casing and the fluid controlled by the valve, so that only corrosion resistant and non-reactive materials are exposed to the fluid.
Inventors
- 👤 D Merriner
- 👤 M Saarem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:22
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1607
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
234 words
A solenoid valve operator assembly comprising: a rod-like magnetic core member; a magnetic tubular member coaxial with said core member and surrounding said core member; a coil mounted on said tubular member in coaxial relationship therewith; a cupshaped magnetic shell member surrounding said coil in coaxial relationsip with said coil and spaced radially therefrom, said shell member having a perforated necked end portion extending radially inwardly around one end of said coil towards said tubular member and extending axially along said tubular member in press-fit therewith, said tubular member having a radially outwardly flared end portion extending axially beyond said necked end portion of said shell member; an annular magnetic member coaxial with said core member and extending radially between said core member and said shell member at the other end of said coil; a molded plastic casing enclosing said shell member and interposed between said coil and said shell member, said molded plastic casing having an end portion of reduced diameter with external; threads therewith and a peripheral channel therein extending around the extremity of said tubular member; an O-ring mounted in said peripheral channel; a reciprocally linearly movable plunger slidably mounted in said tubular member in axially spaced relationship with said core and protruding through said end portion of said tubular member beyond the end of said molded plastic casing, and a resilient pad affixed to the end of of said plunger.
Claim 2
Dependent Claim
234 words
A solenoid valve operator assembly comprising: a rod-like magnetic core member; a magnetic tubular member coaxial with said core member and surrounding said core member; a coil mounted on said tubular member in coaxial relationship therewith; a cupshaped magnetic shell member surrounding said coil in coaxial relationsip with said coil and spaced radially therefrom, said shell member having a perforated necked end portion extending radially inwardly around one end of said coil towards said tubular member and extending axially along said tubular member in press-fit therewith, said tubular member having a radially outwardly flared end portion extending axially beyond said necked end portion of said shell member; an annular magnetic member coaxial with said core member and extending radially between said core member and said shell member at the other end of said coil; a molded plastic casing enclosing said shell member and interposed between said coil and said shell member, said molded plastic casing having an end portion of reduced diameter with external; threads therewith and a peripheral channel therein extending around the extremity of said tubular member; an O-ring mounted in said peripheral channel; a reciprocally linearly movable plunger slidably mounted in said tubular member in axially spaced relationship with said core and protruding through said end portion of said tubular member beyond the end of said molded plastic casing, and a resilient pad affixed to the end of of said plunger.
Claim 3
Dependent Claim
21 words
The solenoid valve operator assembly defined in claim 1, in which said tubular member is adhesively attached to said core member.
Claim 4
Dependent Claim
36 words
The solenoid valve operator assembly defined in claim 1, and which includes a coil spring surrounding said plunger and engaging said flared end portion of said tubular member for biasing said plunger away from said core.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |