US3839109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating right spherical segment glass shell-to-metal-joint
Assignee: United States Department of the Navy
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Filing: 1973-04-25
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Granted: 1974-10-01
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Expires: 1993-04-25
Abstract
Abstract An improved viewing window construction for deep submersible vehicles and a method of construction thereof is disclosed. A hemispherical glass dome is ground and lapped with an edge radius of twice the dome thickness and fitted on a congruently configured mating ring with a bimetalic gasket providing a strain relieving seal therefor.
Inventors
- 👤 G Horn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:40
CPC Classifications
B; B32; B32B; B32B19/00; B32B19/04; B32B19/041; B63; B63B; B63B19/00; B63B19/02; B32B17/00; B32B17/06; B32B17/061; B32B2311/00; B32B2311/18; B32B2315/00; B32B2315/12; Y; Y10; Y10S; Y10S359/00; Y10S359/90; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49893
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
A METHOD OF MAKING A PANORAMIC VIEWING APERTURE FOR A DEEP SUBSMERSIBLE VEHICLE COMPRISING THE STEPS OF: PLACING A HLASS DOME IN CONTACT WITH A MOUNTING RING; LAPPING SAID GLASS DOME INTO MATING SURFACE CONTACT WITH SAID MOUNTING RING; CLEANING SAID GLASS GOME; CLEANING SAID MOUNTING RING; TREATING A SUITABLE DIMENSIONED TITABIUM GASKET TO IMPROVE EPOXY CEMENT BONDING TGEREWITH; COATING AN ASBOSETOS GASKET, SAID TITANIUM GASKET AND THE LAPPED SURFACE OF SAID GLASS DOME AND MOUNTING RING WITH EPOXY CEMENT; ASSEMBLING THE GLASS DOME, MOUNTING RING, TITANIUM GASKET, AND ASBESTOS GASKET SUCH THAT THE TITANIUM GASKET IS JUXTA-
Claim 2
Independent Claim
98 words
A METHOD OF MAKING A PANORAMIC VIEWING APERTURE FOR A DEEP SUBSMERSIBLE VEHICLE COMPRISING THE STEPS OF: PLACING A HLASS DOME IN CONTACT WITH A MOUNTING RING; LAPPING SAID GLASS DOME INTO MATING SURFACE CONTACT WITH SAID MOUNTING RING; CLEANING SAID GLASS GOME; CLEANING SAID MOUNTING RING; TREATING A SUITABLE DIMENSIONED TITABIUM GASKET TO IMPROVE EPOXY CEMENT BONDING TGEREWITH; COATING AN ASBOSETOS GASKET, SAID TITANIUM GASKET AND THE LAPPED SURFACE OF SAID GLASS DOME AND MOUNTING RING WITH EPOXY CEMENT; ASSEMBLING THE GLASS DOME, MOUNTING RING, TITANIUM GASKET, AND ASBESTOS GASKET SUCH THAT THE TITANIUM GASKET IS JUXTA-
Claim 3
Dependent Claim
41 words
A method of making a panoramic viewing port for deep submergence vehicles according to claim 1 further comprising the step of figuring said glass dome into hemispheric shape prior to the step of placing it in contact with said mounting ring.
Claim 4
Dependent Claim
46 words
A method of making a panoramic viewing port for deep submergence vehicles according to claim 1 further comprising the step of dimensioning said mounting ring to have the same radial deflection as said glass dome prior to the step of lapping said ring and dome together.
Claim 5
Dependent Claim
37 words
A method of making a panoramic viewing port for deep submergence vehicles according to claim 1 in which said step of lapping includes grinding said glass dome and said mounting ring together with an aluminum oxide slurry.
Claim 6
Dependent Claim
79 words
A method of making a panoramic viewing aperture for a deep submergence vehicle according to Claim 1 in which said step of treating a suitably dimensioned gasket includes in sequence the steps of: sanding both sides of said titanium gasket with a fine grade abrasive wetted with methyl-ethyl-ketone; wiping with absorbent tissue; cleaning bOth sides of said titanium with a predetermined amount of methyl-ethyl-ketone; etching both sides of said titanium gasket with a chemical etchent; and neutralizing said etchent.
References Cited (Backward Citations)
US3413205A
Cited
US3616043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |