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 Title: |
US4826465:
Model submarine
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Fleischmann, Lewis W.; Randallstown, MD
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| Assignee: |
Bloom; Leonard, Towson, MD
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| Published / Filed: |
1989-05-02
/ 1986-05-22
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| Application Number: |
US1986000865790
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| IPC Code: |
Advanced:
A63H 23/04;
IPC-7:
A63H 23/02;
A63H 23/04;
A63H 27/06;
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| ECLA Code: |
B63G8/36; A63H23/04;
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| U.S. Class: |
Current:
446/162;
114/150;
114/333;
446/155;
446/211;
Original:
446/162;
446/155;
446/211;
114/333;
114/150;
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| Field of Search: |
446/161,162,163,164,154,155,211
114/357,333,150
440/038,39
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| Priority Number: |
| 1986-05-22 |
US1986000865790 |
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| Abstract: |
A diving model submarine utilizes an automatic depth level control mechanism, water jet propulsion, a water powered aspirator for ballast tank evacuation, hydraulic control of steering, diving plane attitude, and ballast tank valve action. The model diving submarine is controlled by radio signals and fires torpedos.
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| Attorney, Agent or Firm: |
Bloom, Leonard ;
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| Primary / Asst. Examiners: |
Hafer, Robert A.; Muir, D. Neal
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| Maintenance Status: |
E3 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Family: |
Show 2 known family members
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First Claim:
Show all 6 claims |
What is claimed is:
1. In a positively buoyant model submarine of the type having forward planes, stern planes and rudders, the improvement thereupon, in combination, comprising: a free flooding hull; a hydraulic propulsion means having a hydraulic discharge; the hydraulic propulsion means including a ballast tank for receiving fluid therein; an aspirator means secured between the ballast tank and the hydraulic propulsion means; said tank being continuously purged of fluid therein at a first rate by the hydraulic discharge of the propulsion means; a ballast tank flooding means for selectively flooding the ballast tank with fluid at a second rate being greater than the first rate, wherein by controlled flooding and purging of the ballast tank, submerging of the model submarine to its periscope depth is achieved; and an open circuit hydraulic control system means positioned within the hull for controlling the ballast tank flooding means; movement of the forward planes and movement of the rudders,
- wherein the hydraulic pump is further formed having a hydraulic outlet port therein for discharging fluid from the pump in a controlled fluid stream and wherein the open circuit hydraulic control system means is comprised of: a diving plane control valve having a fore magnetic coil, an aft magnetic coil and a central valve portion disposed therebetween, said valve being further provided with a central bore tube formed through said valve, said bore tube having a first fore end and a second aft end; a central bore tube bushing being disposed in and lining the bore tube; a metal sliding spool being disposed in the bore tube for axial movement therein, said spool being formed with a plurality of annular grooves thereon; a first and a second bobbin positioned embracing the fore coil and the aft coil respectively; a first retaining screw disposed through the first bobbin and being received in the first fore end of the bore tube; a second retaining screw disposed through the second bobbin and being received in the second aft end of the bore tube, whereby first and second restraining screws restrain the spool in the bar; a first upwardly extending bore being formed in the valve in fluid communication with the bore tube, a third bore and the upper chamber of the diving actuator for fluid communication therebetween, whereby liquid flowing from the diving actuator valve to the upper chamber, fills said chamber expanding the diaphragm, carrying the shaft into its second lowered position.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 11 U.S. patent(s) that reference this one
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