Patent US548670A successfully refreshed from Google Patents.
Patent US3672647A successfully refreshed from Google Patents.
US3672647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick release mechanism for sewage lagoon aeration guns
Assignee: Atara Corp
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Filing: 1970-09-25
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Granted: 1972-06-27
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Expires: 1990-09-25
Abstract
Abstract An anchoring device is provided for an aeration gun which has two trunnions on it so that two men in a boat can release or replace a gun from the surface of the liquid of an aerated sewage lagoon. The anchoring device comprises the provision of two slots to accept the trunnions and two vertical elongated guide bars to control the direction of the gun as it is pushed downwardly against the force of its own buoyancy. The elongated guide bars are free to move axially as they are located in sleeves. In the retracted position (raised) they allow the trunnions to enter or leave the slots but in the normal position they are down and prevent the trunnions leaving the slots when the gun is in position. Preferably the slots are concyclic so that the trunnions may be held against the guide bars by applying twist to the gun.
Inventors
- 👤 Declan S Murphy
- 👤 Rolland C H Charest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:45
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
166 words
A device, suitable for anchoring an aeration gun which has a pair of external lugs to the bottom of a sewage lagoon, comprising: two upstanding members extending upwardly from the lagoon floor, each having a downward facing edge so that together the edges can retain the gun by the lugs, an axial locating means secured to each upstanding member; and two elongated movable guide bars, one in each axial locating means, the axial locating means being positioned so that when the guide bars are extended the lugs are prevented from leaving the downward facing edge and when retracted the lugs are enabled to leave the downward facing edge, the guide bars being of approximately the same length as or longer than the aeration gun so as to both form a guide to cause the lugs to engage the downward facing edges and also to allow the operation of extension and retraction to be carried out from a location close to the upper end of the gun.
Claim 2
Independent Claim
166 words
A device, suitable for anchoring an aeration gun which has a pair of external lugs to the bottom of a sewage lagoon, comprising: two upstanding members extending upwardly from the lagoon floor, each having a downward facing edge so that together the edges can retain the gun by the lugs, an axial locating means secured to each upstanding member; and two elongated movable guide bars, one in each axial locating means, the axial locating means being positioned so that when the guide bars are extended the lugs are prevented from leaving the downward facing edge and when retracted the lugs are enabled to leave the downward facing edge, the guide bars being of approximately the same length as or longer than the aeration gun so as to both form a guide to cause the lugs to engage the downward facing edges and also to allow the operation of extension and retraction to be carried out from a location close to the upper end of the gun.
Claim 3
Dependent Claim
29 words
An anchoring device as claimed in claim 1 in which the downward facing edge is the upper edge of an open ended slot and the lateral extensions are trunnions.
Claim 4
Dependent Claim
34 words
An anchoring device as claimed in claim 2 in which the opening of the slots are concyclic, so that the trunnions may enter the slots by rotation of the gun about its longitudinal axis.
Claim 5
Dependent Claim
47 words
An anchoring device as claimed in claim 3 in which a stopper plate is secured to each upstanding member with the upper surface of the stopper plate level with the lower edge of the slot so as to assist the entry of the trunnions into the slot.
Claim 6
Dependent Claim
19 words
An anchoring device as claimed in claim 1 in which the elongated guide bars are made of hollow pipe.
Claim 7
Dependent Claim
20 words
An anchoring device as claimed in claim 5 in which the axial locating means are also made of hollow pipe.
Claim 8
Dependent Claim
32 words
An anchoring device as claimed in claim 1 and further comprising a removable ring adjacent but below the upper end of the gun and is held in position by the guide bars.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |