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Title: US4761909: Ice hole fishing plug
[ Derwent Title ]


Country: US United States of America

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5 pages

 
Inventor: Christian, Gregory A.; Minneapolis, MN 55431
Gray, Patrick L.; Bloomington, MN 55420
Gray, Brian S.; Eagan, MN 55122

Assignee: None

Published / Filed: 1988-08-09 / 1987-06-08

Application Number: US1987000059640

IPC Code: Advanced: A01K 97/01;
Core: A01K 97/00;
IPC-7: A01K 0/00;

U.S. Class: Current: 043/004; 043/004.5;
Original: 043/004; 043/004.5;

Field of Search: 043/004,17,4.5

Priority Number:
1986-10-08  US1986000916889

Abstract: A hollow, elongated tubular member, constructed of flexible resilient material and including an inlet-outlet for admitting and discharging fluid under pressure, is adapted to be disposed in a hole in a layer of ice so that the top and bottom ends extend upwardly and downwardly above and below the layer of ice such that, when inflated, the top and bottom ends expand to seal the hole and to retain the hollow tubular member as an easily removable plug to displace water within the hole and thereby prevent reformation of the ice therein. The method of temporarily plugging a hole in a layer of ice includes the steps of providing an elongated, resilient inflatable tube, inserting the tub partially through the ice hole and inflating the tube to expand the top and bottom so as to retain the tube in the hole.

Attorney, Agent or Firm: Sturm, Warren A. ;

Primary / Asst. Examiners: Godici, Nicholas P.; Skillman, Karen

Maintenance Status: E1 Expired  Check current status

INPADOC Legal Status: Show legal status actions

       
Related Applications:
Application Number Filed Patent Pub. Date  Title
US1986000916889 1986-10-08       


       
Parent Case:     This is a continuation-in-part of our copending application Ser. No. 916,889 filed Oct. 8, 1986 now abandoned for ICE HOLE FISHING PLUG.

Family: None

First Claim:
Show all 8 claims
I claim:     1. An icehole plug, comprising, in combination: a hollow, longitudinally elongated member comprised of material exhibiting resiliency characteristics permitting the walls of said member to expand when unrestrained, said member further having an upper portion comprised of material exhibiting a lesser degree of resiliency than the material of the bottom portion and including means for receiving and discharging fluid under pressure to and from the interior thereof and adapted to be disposed in a hole to be plugged so that the top and bottom portions remain unrestrained when fluid under pressure is admitted to the interior thereof whereby the ends of said member will expand over the ends of a hole.

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Forward References: Show 7 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (7)   |   Backward references (3)   |   Citation Link

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PDF
Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 5pp US2838196* 1958-06 Chapman    
Get PDF - 4pp US3555827  1971-01 Herr   METHOD AND APPARATUS FOR PREVENTING ICE FISHING HOLES FROM FREEZING CLOSED WHEN NOT IN USE
Get PDF - 4pp US3999322  1976-12 Kooker   Ice fishing hole plug
  * some details unavailable
       
Foreign References:
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PDF
Publication Date IPC Code Assignee   Title
Buy PDF CA1074584 1980-04  E21B 7/00 MAJESTY (HER) IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF PREVENTING FREEZE-UP OF ICE HOLES 


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