US4348365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal seed holder assembly
Assignee: Intersil Corp
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Filing: 1981-03-09
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Granted: 1982-09-07
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Expires: 2001-03-09
Abstract
Abstract A crystal seed holder assembly for retaining a crystal seed used to grow a ribbon of crystal by the EFG technique is disclosed. The holder assembly is arranged so that the seed is not subjected to fastener stress, can expand without thermal stress and can slide a limited distance relative to the holder assembly.
Inventors
- 👤 Nicholas F. Gubitose
- 👤 Malcolm R. Schuler
- 👤 David L. Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:51
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/34; C30B15/32; Y; Y10; Y10S; Y10S117/00; Y10S117/911; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1032; Y10T117/1036; Y10T117/1044; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17821; Y10T279/17846
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
113 words
A crystal seed holder assembly comprising a rod member having a portion of reduced cross-section adjacent one end, said portion being formed with a first generally planar surface, a clamp member formed with a second generally planar surface, fastener means securing said clamp member to said rod member with said planar surfaces being adjacent each other in spaced apart relationship to form a track, a crystal seed slideably retained in said track, and stop means for limiting movement of the crystal seed in said track, wherein said stop means includes a rib member formed on said first planar surface and a notch formed in said crystal seed for seating around said rib member.
Claim 2
Dependent Claim
113 words
A crystal seed holder assembly comprising a rod member having a portion of reduced cross-section adjacent one end, said portion being formed with a first generally planar surface, a clamp member formed with a second generally planar surface, fastener means securing said clamp member to said rod member with said planar surfaces being adjacent each other in spaced apart relationship to form a track, a crystal seed slideably retained in said track, and stop means for limiting movement of the crystal seed in said track, wherein said stop means includes a rib member formed on said first planar surface and a notch formed in said crystal seed for seating around said rib member.
Claim 3
Dependent Claim
42 words
A crystal seed holder assembly in accordance with claim 1 wherein said stop means further comprises a second rib member formed on said second planar surface and a second notch formed in said crystal seed for seating around said second rib member.
Claim 4
Dependent Claim
19 words
A crystal seed holder assembly in accordance with claim 2 wherein said notches are larger than said rib members.
Claim 5
Dependent Claim
113 words
A crystal seed holder assembly comprising a rod member having a portion of reduced cross-section adjacent one end, said portion being formed with a first generally planar surface, a clamp member formed with a second generally planar surface, fastener means securing said clamp member to said rod member with said planar surfaces being adjacent each other in spaced apart relationship to form a track, a crystal seed slideably retained in said track, and stop means for limiting movement of the crystal seed in said track, wherein said stop means includes a rib member formed on said second planar surface and a notch formed in said crystal seed for seating around said rib member.
Claim 6
Dependent Claim
113 words
A crystal seed holder assembly comprising a rod member having a portion of reduced cross-section adjacent one end, said portion being formed with a first generally planar surface, a clamp member formed with a second generally planar surface, fastener means securing said clamp member to said rod member with said planar surfaces being adjacent each other in spaced apart relationship to form a track, a crystal seed slideably retained in said track, and stop means for limiting movement of the crystal seed in said track, wherein said stop means includes a rib member formed on said second planar surface and a notch formed in said crystal seed for seating around said rib member.
Claim 7
Dependent Claim
21 words
A crystal seed holder assembly in accordance with claims 1 or 4 wherein said notch is larger than said rib member.
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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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |