Patent US3637979A successfully refreshed from Google Patents.
US3637979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational apparatus
Assignee: Sprinkler Corp of America
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Filing: 1969-01-16
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Granted: 1972-01-25
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Expires: 1989-01-16
Abstract
Abstract An educational phase heat exchanger, primarily a functional device, which is arranged as an educational aid. The apparatus consists of two major components: a boiler and a liquid-feed reservoir. Both of these components are ordinarily constructed of a corrosion-resistant material and can be used for the production of wet or dry steam and for the production of wet or super-heated vapors from primary alcohols or mixed liquids of various viscosities. By attaching thermocouples at predetermined points in the system, studies of heat transfer through component walls, enthalpies of vapors, heat balance of systems and other similar investigations can be conducted.
Inventors
- 👤 Karl Moeglich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:31
CPC Classifications
G; G09; G09B; G09B25/00; G09B25/02; F; F28; F28F; F28F13/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
212 words
A portable educational apparatus for visually demonstrating the results obtained by applying heat to a fluid being studied comprising a boiler unit for applying heat to a fluid to be studied, said boiler unit having dividing means forming a first fluid heating zone and a second fluid heating zone, said dividing means allowing passage of vapor from said first heating zone to said second heating zone and preventing passage of liquid therebetween, a reservoir means for receiving a quantity of the fluid to be studied, conduit means for establishing fluid communication between the reservoir means and the boiler unit, fluid flow control means operatively connected to the conduit means for selectively dispensing fluid from the quantitY of fluid in the reservoir means to the boiler for study thereof, first heating means disposed in thermal communication with said first fluid heating zone, second heating means disposed in thermal communication with second fluid heating zone, discharge means for discharging vapor from the boiler unit as required, indicator means coupled to the first and second heating zones for indicating a condition of the fluid therein, and portable frame means to unitarily support the boiler unit and the reservoir in a position for visual observation during the application of heat to the fluid to be studied.
Claim 2
Dependent Claim
212 words
A portable educational apparatus for visually demonstrating the results obtained by applying heat to a fluid being studied comprising a boiler unit for applying heat to a fluid to be studied, said boiler unit having dividing means forming a first fluid heating zone and a second fluid heating zone, said dividing means allowing passage of vapor from said first heating zone to said second heating zone and preventing passage of liquid therebetween, a reservoir means for receiving a quantity of the fluid to be studied, conduit means for establishing fluid communication between the reservoir means and the boiler unit, fluid flow control means operatively connected to the conduit means for selectively dispensing fluid from the quantitY of fluid in the reservoir means to the boiler for study thereof, first heating means disposed in thermal communication with said first fluid heating zone, second heating means disposed in thermal communication with second fluid heating zone, discharge means for discharging vapor from the boiler unit as required, indicator means coupled to the first and second heating zones for indicating a condition of the fluid therein, and portable frame means to unitarily support the boiler unit and the reservoir in a position for visual observation during the application of heat to the fluid to be studied.
Claim 3
Dependent Claim
43 words
The educational apparatus of claim 1 further including a first indicator means for indicating a condition of the fluid in the first fluid heating zone and a second indicator means for indicating a condition of the fluid in the second fluid heating zone.
Claim 4
Dependent Claim
33 words
The educational apparatus of claim 1 wherein pressurizing means are provided for pressurizing the reservoir means in a manner maintaining the reservoir means at a higher pressure than that of the boiler unit.
Claim 5
Dependent Claim
45 words
The educational apparatus of claim 3 wherein pressure indicator means are provided on the reservoir means and on the boiler unit to provide for the visual comparison of the fluid pressures existing in the boiler unit and in the reservoir means at a given moment.
Claim 6
Dependent Claim
31 words
The educational apparatus of claim 4 wherein fin means are provided on the second heating element in the second fluid heating zone for increasing dissipation of heat in the heating zone.
Claim 7
Dependent Claim
23 words
The educational apparatus of claim 5 wherein the fin means are connected to the second heating element means in a spiral relationship thereto.
Claim 8
Dependent Claim
15 words
The educational apparatus of claim 1 wherein said dividing means includes an ebullience suppressor member.
Claim 9
Dependent Claim
33 words
The educational apparatus of claim 1 wherein pressure relief means is connected in communication with one of said fluid heating zones to effect a release of pressure when it exceeds a predetermined level.
Claim 10
Dependent Claim
277 words
A portable educational apparatus for visually demonstrating the results obtained by applying heat to a fluid being studied comprising a boiler unit for applying heat to a fluid to be tested, means for providing controlled fluid feed to the boiler unit, the boiler unit having dividing means forming a first fluid heating zone and means forming a second fluid heating zone, said dividing means allowing passage of vapor from said first heating zone to said second heating zone and preventing passage of liquid therebetween, first heating element means disposed in communication with said first fluid heating zone, second heating element means disposed in communication with said second fluid heating zone, heat control means for individually controlling the operation of the first and second heating elements, a reservoir means for receiving a quantity of the fluid to be studied, conduit means for establishing fluid communication between the reservoir means and the boiler unit, fluid flow control means operatively connected to the conduit means for selectively dispensing fluid from the quantity of fluid in the reservoir means to the boiler for study thereof, first indicator means for indicating a condition of the fluid in the first fluid heating zone, second indicator means for indicating a condition of the fluid in the second fluid heating zone, discharge means for discharging vapor from the boiler unit as required, the first heating element means includes a plurality of heat input members, control means are provided for individually controlling the heat input members and portable frame means to unitarily support the boiler unit and the reservoir in a position for visual observation during the application of heat to the fluid to be studied.
Claim 11
Dependent Claim
277 words
A portable educational apparatus for visually demonstrating the results obtained by applying heat to a fluid being studied comprising a boiler unit for applying heat to a fluid to be tested, means for providing controlled fluid feed to the boiler unit, the boiler unit having dividing means forming a first fluid heating zone and means forming a second fluid heating zone, said dividing means allowing passage of vapor from said first heating zone to said second heating zone and preventing passage of liquid therebetween, first heating element means disposed in communication with said first fluid heating zone, second heating element means disposed in communication with said second fluid heating zone, heat control means for individually controlling the operation of the first and second heating elements, a reservoir means for receiving a quantity of the fluid to be studied, conduit means for establishing fluid communication between the reservoir means and the boiler unit, fluid flow control means operatively connected to the conduit means for selectively dispensing fluid from the quantity of fluid in the reservoir means to the boiler for study thereof, first indicator means for indicating a condition of the fluid in the first fluid heating zone, second indicator means for indicating a condition of the fluid in the second fluid heating zone, discharge means for discharging vapor from the boiler unit as required, the first heating element means includes a plurality of heat input members, control means are provided for individually controlling the heat input members and portable frame means to unitarily support the boiler unit and the reservoir in a position for visual observation during the application of heat to the fluid to be studied.
References Cited (Backward Citations)
US1376509A
Cited
US2391071A
Cited
US2623153A
Cited
US2916598A
Cited
US3031559A
Cited
US3222498A
Cited
US3272965A
Cited
US3385318A
Cited
US3484580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |