Patent US3746478A successfully refreshed from Google Patents.
US3746478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall-mount air pump
Assignee: Metaframe Corp
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Filing: 1971-06-25
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Granted: 1973-07-17
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Expires: 1991-06-25
Abstract
Abstract An air pump comprising a housing in which is mounted a pump for emitting air and an electric-circuit for generating a magnetic field, the latter which actuates the pump. A pair of electricterminal prongs extend from the housing and are electrically coupled with the electric-circuit. The prongs may be directly inserted into a wall-mounted electric power receptacle and, thereby, in the absence of any auxiliary members, act to support the air pump housing. Tubing is provided for communicating the wall-mounted air pump with a water-filled aquarium, which tubing acts to direct air expelled from the air pump into the aquarium.
Inventors
- 👤 A Willinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:36
CPC Classifications
F; F04; F04B; F04B39/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
224 words
An air pump comprising a housing, pump means for emitting air, said pump means being enclosed within said housing, first means securing said pump to an inner side of one wall of said housing, conduit means extending outwardly from an outer side of said one wall of said housing, said conduit means communicating with said pump means for expelling air from said pump means, a pair of electric-terminal prongs secured within said housing and extending outwardly from a rear wall of said housing for operative association with an external wall-mounted electric power receptacle, said prongs being electrically connected to a coil member enclosed wIthin said housing for inducing a magnetic field, said coil member being mounted upon a core member, second means securing said core member within said housing, magneticresponsive means associated with said core member and connected to said pump for actuating said pump when said prongs are operatively associated with the power receptacle, third means pivotally securing said magnetic responsive means within said housing, and vibration damping means disposed on said rear wall of said housing for interposition between said rear wall and the wall-mounted electric power receptacle, said pair of prongs extending through and outwardly from said vibration damping means, whereby said air pump is a self-supporting structure for direct connection to the wall-mounted receptacle without any external electrical power cords.
Claim 2
Dependent Claim
224 words
An air pump comprising a housing, pump means for emitting air, said pump means being enclosed within said housing, first means securing said pump to an inner side of one wall of said housing, conduit means extending outwardly from an outer side of said one wall of said housing, said conduit means communicating with said pump means for expelling air from said pump means, a pair of electric-terminal prongs secured within said housing and extending outwardly from a rear wall of said housing for operative association with an external wall-mounted electric power receptacle, said prongs being electrically connected to a coil member enclosed wIthin said housing for inducing a magnetic field, said coil member being mounted upon a core member, second means securing said core member within said housing, magneticresponsive means associated with said core member and connected to said pump for actuating said pump when said prongs are operatively associated with the power receptacle, third means pivotally securing said magnetic responsive means within said housing, and vibration damping means disposed on said rear wall of said housing for interposition between said rear wall and the wall-mounted electric power receptacle, said pair of prongs extending through and outwardly from said vibration damping means, whereby said air pump is a self-supporting structure for direct connection to the wall-mounted receptacle without any external electrical power cords.
Claim 3
Dependent Claim
35 words
An air pump as claimed in claim 1 wherein said housing includes adhesive means proximate said vibration damping means for operative association adhesively with a wall in which is provided said wall-mounted electric power receptacle.
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |