Patent US3962733A successfully refreshed from Google Patents.
US3962733A
Expired / Lapsed
US
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All weather safety shower
Assignee: Thermal Conduction Engr Corp
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Filing: 1973-08-30
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Granted: 1976-06-15
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Expires: 1993-08-30
Abstract
Abstract A safety shower adapted for reliable operation under all weather conditions is provided with strategically located bleed means for draining water from the shower, at least one of such bleed means including a temperature sensitive valve which permits limited flow of supply water upon the occurrence of predetermined ambient temperature conditions. In temperature zones the temperature sensitive valve will be one responsive to near freezing temperatures, in equatorial zones the temperature sensitive valve will be one responsive to dangerously high water temperatures, and in intermediate and temperate zones both types of temperature sensitive valves may be employed. Other bleed means is preferably employed to facilitate draining of water from portions of piping beyond the shower activating means when the shower is not in use.
Inventors
- 👤 Edward Parry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:10
CPC Classifications
E; E03; E03B; E03B7/00; E03B7/09; E03B7/10; A; A47; A47K; A47K3/00; A47K3/28; A47K3/283; A47K3/286; F; F16; F16L; F16L53/00; F16L53/30; F16L53/34; F16L53/35; F16L53/38
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
155 words
A safety shower comprising a piping system including a vertical portion leading from a constant water supply to an elevated horizontal portion terminating in a downwardly directed shower head, a quick actuating valve closely adjacent said shower head, control means for said valve readily accessible to an individual beneath said shower, an ambient temperature sensitive bleed valve assembly closely adjacent and in advance of said quick actuating valve, said bleed valve assembly further having a bleed valve containing valve actuating means which respond to said sensor to open and close said bleed valve at predetermined ambient temperatures, said temperature sensitive bleed valve being set to open as ambient temperature reaches and exceeds predetermined depressed or elevated levels, thereby providing a limited flow of water through the piping system in advance of said quick actuating valve while the shower is not in use, upon and during occurrence of said predetermined depressed or elevated ambient temperature levels.
Claim 2
Dependent Claim
155 words
A safety shower comprising a piping system including a vertical portion leading from a constant water supply to an elevated horizontal portion terminating in a downwardly directed shower head, a quick actuating valve closely adjacent said shower head, control means for said valve readily accessible to an individual beneath said shower, an ambient temperature sensitive bleed valve assembly closely adjacent and in advance of said quick actuating valve, said bleed valve assembly further having a bleed valve containing valve actuating means which respond to said sensor to open and close said bleed valve at predetermined ambient temperatures, said temperature sensitive bleed valve being set to open as ambient temperature reaches and exceeds predetermined depressed or elevated levels, thereby providing a limited flow of water through the piping system in advance of said quick actuating valve while the shower is not in use, upon and during occurrence of said predetermined depressed or elevated ambient temperature levels.
Claim 3
Dependent Claim
60 words
A safety shower as defined in claim 1 wherein said temperature sensitive bleed valve assembly is of the low temperature type, and is set to automatically open as ambient temperature drops to and below a temperature of the order of two degrees above the freezing point and to remain open until the ambient temperature again rises above said pre-set temperature.
Claim 4
Dependent Claim
59 words
A safety shower as defined in claim 1 wherein said temperature sensitive bleed valve assembly is of the high temperature type, and is set to open as ambient temperature rises to and above a predetermined temperature within the range of 120°- 150°F and to remain open until the water passing through the valve has dropped below said pre-set temperature.
Claim 5
Dependent Claim
131 words
A safety shower as defined in claim 1 wherein two temperature sensitive bleed valve assemblies are employed in close proximity in said quick actuating valve, one of said temperature sensitive valve assemblies being of the low temperature type and being set to type, open as ambient temperature drops to and below a temperature of the order of two degrees above the freezing point and to remain open until the ambient temperature again rises above said pre-set temperature, and the other of said temperature sensitive bleed valve assemblies being of the high temperature type, and being set to open as ambient temperature rises to and above a predetermined temperature within the range of 120°- 150°F and to remain open until the water passing through the valve has dropped below said pre-set temperature.
Claim 6
Dependent Claim
41 words
A safety shower as defined in claim 1 wherein the piping system beyond said quick actuating valve is provided with a weep hole and associated drain tubing facilitating drainage of water from the showerhead when the shower is not in use.
Claim 7
Dependent Claim
39 words
A safety shower as defined in claim 1 wherein said piping system is encased in a thermally insulated jacket, and means is provided longitudinally of said piping system for applying heat thereto as ambient temperature approaches the freezing point.
Claim 8
Dependent Claim
19 words
A safety shower as defined in claim 6 wherein said heat applying means comprises thermostatically controlled induction heating means.
Claim 9
Dependent Claim
19 words
A safety shower as defined in claim 6 wherein said heat applying means comprises thermostatically controlled resistance heating means.
Claim 10
Dependent Claim
42 words
A safety shower as defined in claim 1 wherein said piping system includes, at a convenient height below said horizontal portion, a branch line terminating in an eyewash head, said branch line including a quick actuating valve closely adjacent said eyewash head.
Claim 11
Dependent Claim
42 words
A safety shower as defined in claim 9 wherein said branch line, beyond said quick actuating valve, is provided with a weep hole and associated tubing to facilitate drainage of water from said eyewash head when the eyewash is not in use.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |