Patent US1599474A successfully refreshed from Google Patents.
US3830596A
Expired / Lapsed
US
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Air pump
Assignee: Individual
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Filing: 1973-01-18
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Granted: 1974-08-20
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Expires: 1993-01-18
Abstract
Abstract A vibrator air pump for blowing air bubbles into an aquarium by a pumping action of a bellows connected to a vibratory armature actuated by an A. C. electromagnet. The electromagnet and the vibratory armature are respectively disposed in a separate chamber divided by partition walls, and the electromagnet has air passages and the chamber where the electromagnet is positioned can be ventilated to cool the electromagnet.
Inventors
- 👤 R Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:12
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/042; F; F04; F04B; F04B35/00; F04B35/04; F04B35/045; F04B39/00; F04B39/06; F04B45/00; F04B45/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
133 words
In a vibrator air pump for delivering air bubbles into an aquarium by a pumping action of a bellows, said pump having an air inlet and an air outlet said bellows being positioned over a valve housing and connected to a vibratory armature operated in an alternating magnetic field, the improvement comprising; an upper and lower casing having partition walls to divide the inside of a housing of said pump into two chambers, said upper casing having slits on the upper and side surface thereof for introducing air into one of said chambers and circulating said air in the inside and outside of said chamber; and an electromagnet having air passages for cooling said electromagnet and disposed in said chamber by having a front contour of said electromagnet encircled by said partition walls.
Claim 2
Dependent Claim
133 words
In a vibrator air pump for delivering air bubbles into an aquarium by a pumping action of a bellows, said pump having an air inlet and an air outlet said bellows being positioned over a valve housing and connected to a vibratory armature operated in an alternating magnetic field, the improvement comprising; an upper and lower casing having partition walls to divide the inside of a housing of said pump into two chambers, said upper casing having slits on the upper and side surface thereof for introducing air into one of said chambers and circulating said air in the inside and outside of said chamber; and an electromagnet having air passages for cooling said electromagnet and disposed in said chamber by having a front contour of said electromagnet encircled by said partition walls.
Claim 3
Dependent Claim
30 words
A vibrator air pump according to claim 1, wherein said air passages are formed between both side surface of poles and inner side surface of a bobbin of said electromagnet.
Claim 4
Dependent Claim
26 words
A vibrator air pump according to claim 1, wherein said air passages are formed in the center of poles by dividing said poles into two sections.
Claim 5
Dependent Claim
19 words
A vibrator air pump according to claim 2, wherein windows communicating with said passages are formed on said bobbins.
References Cited (Backward Citations)
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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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |