US3090367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic valve lifter mechanism
Assignee: Eaton Corp
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Filing: 1961-05-22
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Granted: 1963-05-21
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Expires: 1981-05-22
Abstract
No abstract record available.
Inventors
- 👤 Ayres Harry Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:23
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/245; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A HYDRAULIC TAPPET COMPRISING A CAST IRON BODY MEMBER INCLUDING A CORROSION RESISTANT TUBULAR PORTION AND A CAM ENGAGEABLE WEAR RESISTANT END PORTION, A STEEL PLUNGER MEMBER HAVING A MAIN BODY PORTION AND BEING RECIPROCABLY MOUNTED IN SAID BODY MEMBER AND BEING SUBJECT TO CORROSION AND WEAR RELATIVE TO SAID BODY MEMBER, A FLUID CHAMBER FORMED BETWEEN SAID BODY AND SAID PLUNGER MEMBERS, FLUID IN SAID CHAMBER OPERABLE TO IMPART A RECIPROCABLE MOVEMENT TO SAID PLUNGER MEMBER UNDER LOAD, A PREDETERMINED CLEARANCE PROVIDED BETWEEN SAID PLUNGER AND BODY MEMBERS FORMING A PASSAGEWAY THEREBETWEEN OPERABLE TO ALLOW A PREDETERMINED MINIMUM OF FLUID FLOW THEREIN FROM SAID CHAMBER, SAID STEEL PLUNGER MAIN BODY PORTION HAVING A WEAR AND CORROSION RESISTANT CHROMIUM SURFACE THEREON FORMING A PART OF SAID PASSAGEWAY OPERABLE TO MAINTAIN SAID PREDETERMINED CLEARANCE IN SAID PASSAGEWAY AND CONTROL SAID FLUID FLOW THEREIN.
Claim 2
Dependent Claim
142 words
A HYDRAULIC TAPPET COMPRISING A CAST IRON BODY MEMBER INCLUDING A CORROSION RESISTANT TUBULAR PORTION AND A CAM ENGAGEABLE WEAR RESISTANT END PORTION, A STEEL PLUNGER MEMBER HAVING A MAIN BODY PORTION AND BEING RECIPROCABLY MOUNTED IN SAID BODY MEMBER AND BEING SUBJECT TO CORROSION AND WEAR RELATIVE TO SAID BODY MEMBER, A FLUID CHAMBER FORMED BETWEEN SAID BODY AND SAID PLUNGER MEMBERS, FLUID IN SAID CHAMBER OPERABLE TO IMPART A RECIPROCABLE MOVEMENT TO SAID PLUNGER MEMBER UNDER LOAD, A PREDETERMINED CLEARANCE PROVIDED BETWEEN SAID PLUNGER AND BODY MEMBERS FORMING A PASSAGEWAY THEREBETWEEN OPERABLE TO ALLOW A PREDETERMINED MINIMUM OF FLUID FLOW THEREIN FROM SAID CHAMBER, SAID STEEL PLUNGER MAIN BODY PORTION HAVING A WEAR AND CORROSION RESISTANT CHROMIUM SURFACE THEREON FORMING A PART OF SAID PASSAGEWAY OPERABLE TO MAINTAIN SAID PREDETERMINED CLEARANCE IN SAID PASSAGEWAY AND CONTROL SAID FLUID FLOW THEREIN.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |