Patent US3345642A successfully refreshed from Google Patents.
US3345642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headgear with retractable vertically movable eye shield
Assignee: MSA Safety Inc
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Filing: 1965-12-09
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Granted: 1967-10-10
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Expires: 1985-12-09
Abstract
No abstract record available.
Inventors
- 👤 Edward A Uminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:01
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
IN PROTECTIVE HEADGEAR, A HELMET SHELL FOR RECEIVING THE HEAD, A HORIZONTALLY CURVED TRANSPARENT EYE SHIELD NORMALLY ENGAGING THE INSIDE OF THE FRONT OF THE SHELL AND HAVING REARWARDLY EXTENDING END PORTIONS, A SHAFT ROTATABLY MOUNTED IN EACH SIDE OF THE SHELL BEHIND THE SHIELD, A CAM PLATE RIGIDLY MOUNTED NEAR ITS REAR END ON EACH SHAFT INSIDE THE SHELL, MANUALLY OPERABLE MEMBERS RIGIDLY MOUNTED ON THE OUTER ENDS OF THE SHAFTS FOR TURNING THEM TO SWING THE FRONT ENDS OF THE CAM PLATES UPWARD, A CAM FOLLOWER PLATE BESIDE EACH CAM PLATE AND RIGIDLY CONNECTED AT ITS FRONT END TO THE ADJOINING END OF THE SHIELD, EACH FOLLOWER PLATE BEING PROVIDED WITH A SLOT EXTENDING LENGTHWISE THEREOF RECEIVING THE ADJOINING SHAFT IN ITS REAR END, A CAM FOLLOWER MOUNTED ON THE FOLLOWER PLATE IN FRONT OF SAID SLOT, THE FRONT EDGES OF THE CAM PLATES ENGAGING THE BACK OF SAID CAM FOLLOWERS TO PRESS THE SHIELD FORWARD AGAINST THE SHELL, AN INWARDLY PROJECTING STUD RIGIDLY MOUNTED IN EACH SIDE OF THE SHELL BESIDE SAID PLATES, EACH FOLLOWER PLATE HAVING A STRAIGHT SLOT THEREIN RECEIVING ONE OF THE STUDS IN ITS REAR END AND EXTENDING FORWARD THEREFROM PARALLEL TO THE ADJACENT SHAFT SLOT, EACH CAM PLATE AND ADJOINING FOLLOWER PLATE BEING PROVIDED
Claim 2
Dependent Claim
212 words
IN PROTECTIVE HEADGEAR, A HELMET SHELL FOR RECEIVING THE HEAD, A HORIZONTALLY CURVED TRANSPARENT EYE SHIELD NORMALLY ENGAGING THE INSIDE OF THE FRONT OF THE SHELL AND HAVING REARWARDLY EXTENDING END PORTIONS, A SHAFT ROTATABLY MOUNTED IN EACH SIDE OF THE SHELL BEHIND THE SHIELD, A CAM PLATE RIGIDLY MOUNTED NEAR ITS REAR END ON EACH SHAFT INSIDE THE SHELL, MANUALLY OPERABLE MEMBERS RIGIDLY MOUNTED ON THE OUTER ENDS OF THE SHAFTS FOR TURNING THEM TO SWING THE FRONT ENDS OF THE CAM PLATES UPWARD, A CAM FOLLOWER PLATE BESIDE EACH CAM PLATE AND RIGIDLY CONNECTED AT ITS FRONT END TO THE ADJOINING END OF THE SHIELD, EACH FOLLOWER PLATE BEING PROVIDED WITH A SLOT EXTENDING LENGTHWISE THEREOF RECEIVING THE ADJOINING SHAFT IN ITS REAR END, A CAM FOLLOWER MOUNTED ON THE FOLLOWER PLATE IN FRONT OF SAID SLOT, THE FRONT EDGES OF THE CAM PLATES ENGAGING THE BACK OF SAID CAM FOLLOWERS TO PRESS THE SHIELD FORWARD AGAINST THE SHELL, AN INWARDLY PROJECTING STUD RIGIDLY MOUNTED IN EACH SIDE OF THE SHELL BESIDE SAID PLATES, EACH FOLLOWER PLATE HAVING A STRAIGHT SLOT THEREIN RECEIVING ONE OF THE STUDS IN ITS REAR END AND EXTENDING FORWARD THEREFROM PARALLEL TO THE ADJACENT SHAFT SLOT, EACH CAM PLATE AND ADJOINING FOLLOWER PLATE BEING PROVIDED
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |