US4471631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile water chiller apparatus
Assignee: VSE Corp
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Filing: 1983-06-20
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Granted: 1984-09-18
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Expires: 2003-06-20
Abstract
Abstract The mobile water chiller apparatus of the present invention comprises a refrigeration system, a water system and an engine for driving the water and refrigeration systems. The water system includes a thermostatically controlled blending valve to temper warm water from the water supply with cool water from the evaporator heat exchanger of the refrigeration system so as to provide a constant load to the evaporator heat exchanger inlet and an immediate source of cool water.
Inventors
- 👤 Leslie M. Anstey
- 👤 Ralph J. Adolph
- 👤 Jack B. Dobler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:39
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
129 words
A mobile water chiller apparatus comprising a supporting base, a refrigeration system on said base to circulate a heat absorbing fluid and having an evaporator heat exchanger through which said fluid is flowed, a water system on said base circulating water to a water inlet and a water outlet of said evaporator heat exchanger in which heat in the water is transferred, means on said base for driving said water and refrigeration systems, said water system including a thermostatically-controlled blending valve connected between said water outlet and said water inlet and to a supply of water to be chilled so as to temper warm water from a supply with cool water from the evaporator heat exchanger outlet whereby a constant load is provided to the evaporator heat exchanger inlet.
Claim 2
Dependent Claim
129 words
A mobile water chiller apparatus comprising a supporting base, a refrigeration system on said base to circulate a heat absorbing fluid and having an evaporator heat exchanger through which said fluid is flowed, a water system on said base circulating water to a water inlet and a water outlet of said evaporator heat exchanger in which heat in the water is transferred, means on said base for driving said water and refrigeration systems, said water system including a thermostatically-controlled blending valve connected between said water outlet and said water inlet and to a supply of water to be chilled so as to temper warm water from a supply with cool water from the evaporator heat exchanger outlet whereby a constant load is provided to the evaporator heat exchanger inlet.
Claim 3
Dependent Claim
38 words
A mobile water chiller apparatus as claimed in claim 1 wherein said water system further comprises a recirculate valve connected to said water outlet to recirculate cooled water from said evaporator heat exchanger to a said water supply.
Claim 4
Dependent Claim
28 words
A mobile water chiller apparatus as claimed in claim 1 and further comprising means connected to said water outlet for dispensing cool water exiting from said water outlet.
Claim 5
Dependent Claim
50 words
A mobile water chiller apparatus as claimed in claim 1 and further comprising a water discharge line connected to said water outlet of said evaporator heat exchanger and to first and second branches, said first branch connected to said water supply and said second branch connected to said blending valve.
Claim 6
Dependent Claim
50 words
A mobile water chiller apparatus as claimed in claim 4 and further comprising means connected to said first branch line for dispensing cold water from said evaporator heat exchanger, a third branch connected between said first branch and said water supply, and a recirculate valve in said third branch line.
Claim 7
Dependent Claim
28 words
A mobile water chiller apparatus as claimed in claim 1 and further comprising a wheeled trailer, said support base and a said water supply mounted on said trailer.
Claim 8
Dependent Claim
27 words
A mobile water chiller apparatus as claimed in claim 1 wherein said driving means comprises an internal combustion engine drivingly connected to said water and refrigeration systems.
Claim 9
Dependent Claim
37 words
A mobile water chiller apparatus as claimed in claim 4 and further comprising means connected between the water outlet of said evaporator heat exchanger and said blending valve for cooling fuel to be supplied to said engine.
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) | 1987-09-18 | 1988-03-19 | 1988-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-18 | 1992-03-19 | 1992-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-18 | 1996-03-19 | 1996-09-18 | $7700.00 | Window Closed / Lapsed |