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US4097783A Expired / Lapsed US ⏱️ 0.0 years remaining

Ultraviolet light processor

Assignee: AETEK INTERNATIONAL Inc
•
Filing: 1976-09-13
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Granted: 1978-06-27
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Expires: 1996-09-13
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Abstract

Abstract The sources of ultraviolet light processors containing a plurality of such sources are started sequentially to reduce the current surge at start-up.

Inventors

  • 👤 Michael L. Hathaway

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 13:22
CPC Classifications
H; H05; H05B; H05B47/00; H05B47/10; H05B47/155

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 85 words
An ultraviolet light processor comprising: a. a sequence of members for emitting ultraviolet light when connected to a source of electrical power; b. means for automatically and sequentially connecting members of said sequence to a source of electrical power to thereby cause said members to emit ultraviolet light; and c. timing means including only a single timing relay, said timing means cooperating with said connecting means for interposing a time interval between connections of adjacent members of said sequence to said source of electrical power.
Claim 2
Dependent Claim 85 words
An ultraviolet light processor comprising: a. a sequence of members for emitting ultraviolet light when connected to a source of electrical power; b. means for automatically and sequentially connecting members of said sequence to a source of electrical power to thereby cause said members to emit ultraviolet light; and c. timing means including only a single timing relay, said timing means cooperating with said connecting means for interposing a time interval between connections of adjacent members of said sequence to said source of electrical power.
Claim 3
Dependent Claim 21 words
The ultraviolet light processor of claim 1 including means for initiating the operation of said connecting means and said timing means.
Claim 4
Dependent Claim 24 words
The ultraviolet light processor of claim 2 including means for permitting said connecting means to function only from the beginning of the connecting sequence.
Claim 5
Dependent Claim 23 words
The ultraviolet processor of claim 1 wherein said time interval is in the range of from about 1/2 second to about 10 seconds.
Claim 6
Dependent Claim 35 words
The ultraviolet light processor of claim 1 wherein: a. said electrical power is alternating; and b. alternating electrical power is applied to each member through a reactance comprising an inductive reactance and a capacitive reactance.
Claim 7
Dependent Claim 13 words
The ultraviolet lignt processor of claim 5 including means for varying the reactance.
Claim 8
Dependent Claim 14 words
The ultraviolet light processor of claim 5 including means for varying the capacitive reactance.
Claim 9
Dependent Claim 24 words
The ultraviolet light processor of claim 7 wherein said varying means varies the capacitive reactance through a plurality of discrete steps of capacitive reactance.
Claim 10
Dependent Claim 18 words
The ultraviolet light processor of claim 8 wherein said members are medium or high pressure mercury vapor lamps.
Claim 11
Dependent Claim 34 words
The ultraviolet light processor of claim 9 including means for causing alternating electrical power to be applied to said lamps through a predetermined value of reactance at least until said lamps are warmed up.
Claim 12
Dependent Claim 22 words
The ultraviolet light processor of claim 10 including means for changing the value of capacitive reactance after said lamps are warmed up.
Claim 13
Dependent Claim 27 words
The ultraviolet light processor of claim 1 including means for disconnecting any member of the sequence from the source of electrical power upon failure of said member.
Claim 14
Dependent Claim 193 words
An ultraviolet light processor comprising: a. a sequence of medium or high pressure mercury vapor lamps for emitting ultraviolet light when connected to a source of alternating electrical power; b. means for automatically and sequentially connecting lamps of said sequence through a reactance to a source of electrical power to thereby cause said lamps to emit ultraviolet light, wherein said reactance comprises an inductive reactance and a capacitive reactance; c. timing means including only a single timing relay, said timing means cooperating with said connecting means for interposing a time interval in the range of from about 1/2 second to about 10 seconds between connections of adjacent lamps of said sequence to said source of alternating electrical power; d. means for initiating the operation of said connecting means and said timing means; e. means for permitting said connecting means to function only from the beginning of the connecting sequence; f. means for varying the capacitive reactance through a plurality of discrete steps of capacitive reactance; and g. means for causing alternating electric power to be applied to said lamps through a predetermined value of reactance at least until said lamps are warmed up.
Claim 15
Dependent Claim 193 words
An ultraviolet light processor comprising: a. a sequence of medium or high pressure mercury vapor lamps for emitting ultraviolet light when connected to a source of alternating electrical power; b. means for automatically and sequentially connecting lamps of said sequence through a reactance to a source of electrical power to thereby cause said lamps to emit ultraviolet light, wherein said reactance comprises an inductive reactance and a capacitive reactance; c. timing means including only a single timing relay, said timing means cooperating with said connecting means for interposing a time interval in the range of from about 1/2 second to about 10 seconds between connections of adjacent lamps of said sequence to said source of alternating electrical power; d. means for initiating the operation of said connecting means and said timing means; e. means for permitting said connecting means to function only from the beginning of the connecting sequence; f. means for varying the capacitive reactance through a plurality of discrete steps of capacitive reactance; and g. means for causing alternating electric power to be applied to said lamps through a predetermined value of reactance at least until said lamps are warmed up.
Claim 16
Dependent Claim 22 words
The ultraviolet light processor of claim 13 including means for changing the value of capacitive reactance after said lamps are warmed up.
Claim 17
Dependent Claim 27 words
The ultraviolet light processor of claim 13 including means for disconnecting any lamp of the sequence from the source of electrical power upon failure of said lamp.

References Cited (Backward Citations)

SU175133A1 Cited
US2859387A Cited
US2861218A Cited
US3499781A Cited
US3875067A Cited
US3943046A Cited
US3911320A Cited
US3984726A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-06-26 1981-12-26 1982-06-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-06-26 1985-12-26 1986-06-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-06-26 1989-12-26 1990-06-27 $7700.00 Window Closed / Lapsed

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