Invention Grant
US4516421A Devices for manufacturing annular frames for seals and to the
corresponding frames and seals
失效
用于制造用于密封件的环形框架以及相应的框架和密封件的装置
- Patent Title: Devices for manufacturing annular frames for seals and to the corresponding frames and seals
- Patent Title (中): 用于制造用于密封件的环形框架以及相应的框架和密封件的装置
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Application No.: US417337Application Date: 1982-09-13
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Publication No.: US4516421APublication Date: 1985-05-14
- Inventor: Gerard Tavin
- Applicant: Gerard Tavin
- Applicant Address: FRX Paris
- Assignee: Hutchinson
- Current Assignee: Hutchinson
- Current Assignee Address: FRX Paris
- Main IPC: B21D53/18
- IPC: B21D53/18 ; B21D22/00
Abstract:
To produce an annular metal frame having an L shaped half-section for a lipped seal, a metal strip is cut into lengths, each of these lengths is rolled up circularly until its two ends are in abutment, so as to form a cylindrical ring (7), then this ring is driven into the cavity of small thickness defined between two parallel guide surfaces (S, S'), the entrance to said cavity having a shape complementary to that of the ring and the bottom of the cavity having a shape complementary to that of the frame to be produced.
Public/Granted literature
- US5737631A Reprogrammable instruction set accelerator Public/Granted day:1998-04-07
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