Patent US4956754A successfully refreshed from Google Patents.
US4956754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultraviolet lamp assembly
Assignee: Individual
•
Filing: 1990-03-01
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Granted: 1990-09-11
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Expires: 2010-03-01
Abstract
Abstract An ultraviolet lamp assembly for destroying microorganisms in aquarium water includes an elongated ultraviolet lamp, a compartment member wrapped in a helical pattern around and along the length of the lamp, an elongated refelctor tube enveloping the lamp and compartment member with its inner surface abutting against the outer periphery of the compartment member thus defining a helical water flow passage and plug members secured to open ends of the reflector tube. The plug members are formed with inlet and outlet ports respectively communicating ends of the helical passage and exterior of the assembly.
Inventors
- 👤 Sen-Lung Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:50
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/08; A61L2/10; C; C02; C02F; C02F1/00; C02F1/30; C02F1/32; C02F1/325; C02F2201/00; C02F2201/32; C02F2201/322; C02F2201/3223; C02F2201/3228
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
127 words
An ultraviolet lamp assembly for immersion in the water of an aquarium comprising: an tubular ultraviolet lamp having electric supply conductors; a compartment means wrapped in a helical pattern around and along the length of the ultraviolet lamp; an elongated reflector means having two open ends and enveloping said ultraviolet lamp and compartment means with its inner surface abutting against an outer periphery of the compartment means for defining a helical fluid flow passage therein; plug means secured to the open ends of the reflector means; passage means formed in the plug means and communicating ends of the helical passage defined by the compartment means; and pipe means connected to the passage means of the plug means for communicating the helical passage and exterior of this assembly.
Claim 2
Dependent Claim
127 words
An ultraviolet lamp assembly for immersion in the water of an aquarium comprising: an tubular ultraviolet lamp having electric supply conductors; a compartment means wrapped in a helical pattern around and along the length of the ultraviolet lamp; an elongated reflector means having two open ends and enveloping said ultraviolet lamp and compartment means with its inner surface abutting against an outer periphery of the compartment means for defining a helical fluid flow passage therein; plug means secured to the open ends of the reflector means; passage means formed in the plug means and communicating ends of the helical passage defined by the compartment means; and pipe means connected to the passage means of the plug means for communicating the helical passage and exterior of this assembly.
Claim 3
Dependent Claim
23 words
An ultraviolet lamp assembly as claimed in claim 1, wherein the reflector means is made of reflective material with respective to ultraviolet rays.
Claim 4
Dependent Claim
49 words
An ultraviolet lamp assembly as claimed in claim 1, wherein the assembly is further encased in a water-tight condition in a casing having openings communicatively connected with the pipe means and the electric supply conductors are collected at one side of the assembly to extend outwardly through the casing.
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) | 1993-09-10 | 1994-03-12 | 1994-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-10 | 1998-03-12 | 1998-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-10 | 2002-03-12 | 2002-09-11 | $7700.00 | Window Closed / Lapsed |