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 Title: |
US3926406:
Casting of metals
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Hind, Robert Duncan; Rotherham, United Kingdom
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| Assignee: |
United States Steel Corporation, Pittsburgh, PA
other patents from USX CORPORATION (602075) (approx. 1,425)
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| Published / Filed: |
1975-12-16
/ 1973-08-10
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| Application Number: |
US1973000387570
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| IPC Code: |
Advanced:
B22D 41/40;
Core:
B22D 41/22;
IPC-7:
F16K 51/00;
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| U.S. Class: |
Current:
251/144;
222/600;
251/155;
251/176;
251/193;
Original:
251/144;
251/155;
251/176;
251/193;
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| Field of Search: |
251/144,155,176,193
267/162
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| Priority Number: |
| 1972-08-25 |
GB1972000039618 |
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| Abstract: |
A sliding gate valve assembly for use in the casting of metals comprises a resilient device comprising two pad members resiliently urgeable relative to each other by spring means to urge a sliding gate member of the assembly into sealing engagement with a seating therefor and in the event of failure of the spring means, relative movement of said members is severely restricted to correspondingly restrict movement of the gate member away from the seating.
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| Attorney, Agent or Firm: |
Wood, Walter P. ;
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| Primary / Asst. Examiners: |
Weakley, Harold W.;
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Family: |
Show 3 known family members
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First Claim:
Show all 11 claims |
I claim:
1. In a sliding gate valve assembly for controlling flow of molten metal, which assembly comprises a sliding gate member, a seating for said gate member, and resilient devices urging said gate member into sealing engagement with said seating, the improvement in which each of said devices comprises:
- a core member;
- two spaced-apart pad members mounted on said core member for relative movement in directions longitudinal of said core member;
- a sleeve member slidably mounted on said core member intermediate said pad members and extending longitudinally of said core member;
- spring means around said core member acting to urge said pad members apart; and
- means including said sleeve member acting to restrict severely relative movement of said pad members toward each other to restrict correspondingly movement of said gate member away from said seating in the event of failure of said spring means.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 9 U.S. patent(s) that reference this one
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