US5147691A
Expired / Lapsed
US
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Method of producing cover-packing assembly for hard disk device
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1990-07-02
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Granted: 1992-09-15
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Expires: 2010-07-02
Abstract
Abstract A method of producing a cover-packing assembly for a hard disk device is disclosed which comprises applying a liquid self-adhesive silicone rubber material to a predetermined position of a cover member, and curing the rubber material. According to the method, the formation of a packing member and the adhesion of the packing member to the cover member are performed simultaneously on the cover member. Thus, use of a pressure sensitive adhesive, an adhesive or the like, as in the case of employing a packing member comprising a molded or die-cut product, is unnecessary in this method, which is extremely advantageous.
Inventors
- 👤 Noboru Shimamoto
- 👤 Tooru Takamura
- 👤 Ryuichi Handa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:07
CPC Classifications
F; F16; F16J; F16J15/00; G; G11; G11B; G11B33/00; G11B33/14; C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/20; Y; Y10; Y10S; Y10S277/00; Y10S277/922
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
A method of producing a cover-packing assembly for a hard disk device which comprises applying a liquid self-adhesive silicone rubber material to a predetermined position of a cover member for the hard disk device, curing the liquid self-adhesive silicone rubber material to form a cured silicone rubber material, and subsequently mating the cured silicone rubber material and the cover member to a base, wherein said cover-packing assembly consists of said cover member and a packing adhered to said cover member wherein said packing is made of said cured silicone rubber material.
Claim 2
Independent Claim
91 words
A method of producing a cover-packing assembly for a hard disk device which comprises applying a liquid self-adhesive silicone rubber material to a predetermined position of a cover member for the hard disk device, curing the liquid self-adhesive silicone rubber material to form a cured silicone rubber material, and subsequently mating the cured silicone rubber material and the cover member to a base, wherein said cover-packing assembly consists of said cover member and a packing adhered to said cover member wherein said packing is made of said cured silicone rubber material.
Claim 3
Dependent Claim
23 words
The method according to claim 1, wherein the curing is carried out by heating at a temperature ranging from 50° to 220° C.
Claim 4
Dependent Claim
33 words
The method according to claim 1, wherein the liquid self-adhesive silicone rubber material comprises a liquid self-adhesive silicone rubber material which has a viscosity of from 1,000 to 100,000 poises at 25° C.
Claim 5
Dependent Claim
20 words
The method according to claim 3, wherein an addition-curing type silicone rubber composition is used as the silicone rubber material.
Claim 6
Dependent Claim
35 words
The method according to claim 4, wherein the addition-curing type silicone rubber composition comprises a diorganopolysiloxane having an aliphatic unsaturated group in its molecule and an organohydrogenpolysiloxane having a silicon-bonded hydrogen atom in its molecule.
Claim 7
Dependent Claim
32 words
The method according to claim 5, wherein the diorganopolysiloxane has at least two aliphatic unsaturated groups in its molecule, and the organohydrogen-polysiloxane has at least two silicon-bonded hydrogen atoms in its molecule.
Claim 8
Dependent Claim
45 words
The method according to claim 5, wherein the diorganopolysiloxane and the organohydrogenpolysiloxane are blended in such amounts that the molar ratio of the silicon-bonded hydrogen atoms in the organohydrogen-polysiloxane and the aliphatic unsaturated groups in the diorganopolysiloxane is in the range from 0.5 to 4.
Claim 9
Dependent Claim
60 words
The method according to claim 5, wherein said addition-curing type silicone composition further comprises at least one member selected from the group consisting of platinum family metal catalysts, organosilicone adhesiveness-imparting agents having at least one functional group selected from the group consisting of an epoxy group, an alkoxy group, an unsaturated aliphatic group and a silicone-bonded hydrogen atom, and fillers.
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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) | 1995-09-15 | 1996-03-16 | 1996-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-15 | 2000-03-16 | 2000-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-15 | 2004-03-16 | 2004-09-15 | $7700.00 | Window Closed / Lapsed |