US3671976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Full view diver{3 s mask
Assignee: Individual
•
Filing: 1970-10-15
•
Granted: 1972-06-27
•
Expires: 1990-10-15
Abstract
Abstract A full view diver''s mask having a transparent faceplate member configured to conform to the general contour of a diver''s face, carries a peripheral, resilient seal to maintain a sealed relationship. A frontal planar section and a pair of curved portions permit distortion-free frontal and peripheral vision.
Inventors
- 👤 Clarence S Johnson
- 👤 Larry E Mckinley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:22
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
137 words
A diver''s face mask for ensuring a wide field of vision comprising: an integral transparent member having a peripheral portion configured to conform to the facial contours encompassing the eye and nose area and continuously reaching across the facial area in a coextensive frontal portion extending in a plane perpendicular to a line of forward vision ensuring substantially distortion-free frontal vision and in a left and a right curved portion reaching between said peripheral portion and said frontal portion and each having a radius of curvature substantially extending to the center of the left and right eyeball, respectively, to allow substantially distortion-free peripheral vision, and a resilient member disposed on said peripheral portion being shaped to seal the interior of said mask from the surrounding water and being minimally sized to allow substantially unimpeded said peripheral vision.
Claim 2
Dependent Claim
137 words
A diver''s face mask for ensuring a wide field of vision comprising: an integral transparent member having a peripheral portion configured to conform to the facial contours encompassing the eye and nose area and continuously reaching across the facial area in a coextensive frontal portion extending in a plane perpendicular to a line of forward vision ensuring substantially distortion-free frontal vision and in a left and a right curved portion reaching between said peripheral portion and said frontal portion and each having a radius of curvature substantially extending to the center of the left and right eyeball, respectively, to allow substantially distortion-free peripheral vision, and a resilient member disposed on said peripheral portion being shaped to seal the interior of said mask from the surrounding water and being minimally sized to allow substantially unimpeded said peripheral vision.
Claim 3
Dependent Claim
42 words
A diver''s face mask according to claim 1 in which said transparent member includes a nose portion configured to conform to the contours of the nose being integral with and coextensively joined to said frontal portion and said left and right portions.
Claim 4
Dependent Claim
45 words
A diver''s face mask according to claim 2 further including: a pad disposed on the lower inside surface of said nose portion and sized to cover both nostrils when the mask is slightly vertically displaced to allow pressure equalization of the mask to its surroundings.
Claim 5
Dependent Claim
25 words
A diver''s face mask according to claim 1 further including: a purge valve disposed adjacent said nose portion to allow selective clearing of the mask.
References Cited (Backward Citations)
US2709256A
Cited
US2876766A
Cited
US2928097A
Cited
US3027562A
Cited
US3336599A
Cited
US3483569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |