Patent US4184209A successfully refreshed from Google Patents.
US4184209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Towed noisemaker
Assignee: Individual
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Filing: 1952-10-10
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Granted: 1980-01-15
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Expires: 1972-10-10
Abstract
Abstract 1. A towed decoy system adapted to be towed from a towing vessel, an electrically powered noisemaker, an electrical tow cable attached to said noisemaker, a depressor vane, a depresser cable connected to said depressor vane and to the towing vessel, and means interconnecting said depressor cable and said electrical tow cable at a point near said depressor vane, said interconnecting means comprising a pair of cable grips respectively attached at one end to adjacent sections of said electrical tow cable and at their other ends to a snatch block movably mounted on said depressor cable thereby providing slack in said electrical tow cable, whereby said noisemaker is towed at a depth not less than that of the point of attachment of said snatch block to said depressor cable.
Inventors
- 👤 Ralph P. Crist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:49
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/38; G01V1/3817; G01V1/3826; G01V1/02; G01V1/143; H; H04; H04B; H04B11/00; G10; G10K; G10K2210/00; G10K2210/10; G10K2210/127
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
128 words
A towed decoy system adapted to be towed from a towing vessel, an electrically powered noisemaker, an electrical tow cable attached to said noisemaker, a depressor vane, a depressor cable connected to said depressor vane and to the towing vessel, and means interconnecting said depressor cable and said electrical tow cable at a point hear said depressor vane, said interconnecting means comprising a pair of cable grips respectively attached at one end to adjacent sections of said electrical tow cable and at their other ends to a snatch block movably mounted on said depressor cable thereby providing slack in said electrical tow cable, whereby said noisemaker is towed at a depth not less than that of the point of attachment of said snatch block to said depressor cable.
Claim 2
Dependent Claim
128 words
A towed decoy system adapted to be towed from a towing vessel, an electrically powered noisemaker, an electrical tow cable attached to said noisemaker, a depressor vane, a depressor cable connected to said depressor vane and to the towing vessel, and means interconnecting said depressor cable and said electrical tow cable at a point hear said depressor vane, said interconnecting means comprising a pair of cable grips respectively attached at one end to adjacent sections of said electrical tow cable and at their other ends to a snatch block movably mounted on said depressor cable thereby providing slack in said electrical tow cable, whereby said noisemaker is towed at a depth not less than that of the point of attachment of said snatch block to said depressor cable.
Claim 3
Dependent Claim
117 words
An underwater decoy adapted to be towed from a vessel comprising a cylindrical spindle, a plurality of rollers each having a serrated circumferential surface, means securing said plurality of rollers to said spindle in equiangular positions with a portion of each of said serrated circumferential surfaces projecting from said spindle, a cylindrical casing surrounding said spindle having its inner surface contacting said circumferential surfaces of said rollers, and its exterior surface in contact with water, an electric motor having a rotary shaft connected to said spindle, an armored cable comprising electrical conductors connected to said electric motor, mechanical means connecting said armor to the towing vessel and a source of electric power connected to said electrical conductors.
Claim 4
Dependent Claim
117 words
An underwater decoy adapted to be towed from a vessel comprising a cylindrical spindle, a plurality of rollers each having a serrated circumferential surface, means securing said plurality of rollers to said spindle in equiangular positions with a portion of each of said serrated circumferential surfaces projecting from said spindle, a cylindrical casing surrounding said spindle having its inner surface contacting said circumferential surfaces of said rollers, and its exterior surface in contact with water, an electric motor having a rotary shaft connected to said spindle, an armored cable comprising electrical conductors connected to said electric motor, mechanical means connecting said armor to the towing vessel and a source of electric power connected to said electrical conductors.
Claim 5
Dependent Claim
18 words
The combination as claimed in claim 2 which includes means for controlling the speed of the electric motor.
Claim 6
Dependent Claim
117 words
In an underwater electric decoy to be towed from a vessel, a cylindrical casing having its outer surface in contact with the water, a cylindrical spindle therein, said spindle comprising a plurality of rollers each comprising a shaft carrying two serrated flanges thereon spaced from each other and the respective ends of the shaft and contacting the inner surface of said casing, pusher means interconnecting said spindle and said rollers in equiangular eccentric positions with respect to the axis of said spindle, said pusher means contacting said shaft on either side of each of said flanges, an electric motor having a rotary shaft connected to said spindle, and a source of electric power connected to said motor.
Claim 7
Dependent Claim
117 words
In an underwater electric decoy to be towed from a vessel, a cylindrical casing having its outer surface in contact with the water, a cylindrical spindle therein, said spindle comprising a plurality of rollers each comprising a shaft carrying two serrated flanges thereon spaced from each other and the respective ends of the shaft and contacting the inner surface of said casing, pusher means interconnecting said spindle and said rollers in equiangular eccentric positions with respect to the axis of said spindle, said pusher means contacting said shaft on either side of each of said flanges, an electric motor having a rotary shaft connected to said spindle, and a source of electric power connected to said motor.
Claim 8
Dependent Claim
155 words
In an electrical underwater decoy, a cylindrical casing having its outer surface in contact with the water, a cylindrical spindle within said casing including a plurality of rollers equiangularly disposed in positions eccentric to the axis of said spindle and contacting said casing, each of said rollers comprising a shaft having thereon a plurality of serrated flanges spaced from each other and the ends of the shaft, pusher means for said rollers secured to said spindle and contacting the shaft of each of said rollers on both sides of the flanges thereon, an electric motor secured to said casing and having a rotary shaft connected to said spindle, a cable comprising electrical conductors having one end secured to said casing and electrically connected to said electric motor, means for securing said cable to the towing vessel, a source of electric power connected to said cable, and means for controlling the speed of said electric motor.
Claim 9
Dependent Claim
155 words
In an electrical underwater decoy, a cylindrical casing having its outer surface in contact with the water, a cylindrical spindle within said casing including a plurality of rollers equiangularly disposed in positions eccentric to the axis of said spindle and contacting said casing, each of said rollers comprising a shaft having thereon a plurality of serrated flanges spaced from each other and the ends of the shaft, pusher means for said rollers secured to said spindle and contacting the shaft of each of said rollers on both sides of the flanges thereon, an electric motor secured to said casing and having a rotary shaft connected to said spindle, a cable comprising electrical conductors having one end secured to said casing and electrically connected to said electric motor, means for securing said cable to the towing vessel, a source of electric power connected to said cable, and means for controlling the speed of said electric motor.
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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) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |