US3893483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary valve train
Assignee: Individual
•
Filing: 1974-01-04
•
Granted: 1975-07-08
•
Expires: 1994-01-04
Abstract
Abstract A rotary valve train employing an elongated block with an axial bore and a shaft disposed in the bore and rotatable about its axis. The block contains a plurality of longitudinally spaced recesses centered on the bore and extending at right angles. Each recess has a first half defining a semicircle and a second half defining a rectangle. A separate circular disc centered on, secured to and rotatable with the shaft is disposed in each recess. Each disc has a quadrant removed. Each recess is ported. Each second half recess has a centrally disposed arm extending radially toward the shaft and disposed in sealing engagement with the outer periphery of the body of the disc.
Inventors
- 👤 Timothy Ackerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:00
CPC Classifications
F; F01; F01L; F01L7/00; F01L7/06; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
105 words
A rotary valve train comprising: an elongated block having an axial bore and a plurality of longitudinally spaced recesses centered on the bore and extending outward at right angles, each recess being ported and having first and second halves, the first half being semicircular, the second half being rectangular; an elongated shaft rotatable about its axis disposed in the bore; and a like plurality of circular discs, each centered on and secured to the shaft and rotated therewith, the discs being longitudinally spaced, each disc being disposed in a corresponding recess and rotatable therein, each disc having a cut out portion defining a circular sector.
Claim 2
Dependent Claim
105 words
A rotary valve train comprising: an elongated block having an axial bore and a plurality of longitudinally spaced recesses centered on the bore and extending outward at right angles, each recess being ported and having first and second halves, the first half being semicircular, the second half being rectangular; an elongated shaft rotatable about its axis disposed in the bore; and a like plurality of circular discs, each centered on and secured to the shaft and rotated therewith, the discs being longitudinally spaced, each disc being disposed in a corresponding recess and rotatable therein, each disc having a cut out portion defining a circular sector.
Claim 3
Dependent Claim
16 words
The train of claim 1 wherein the disc cut-out portions are angularly separated one from another.
Claim 4
Dependent Claim
12 words
The train of claim 2 wherein each cut-out portion defines a quadrant.
Claim 5
Dependent Claim
32 words
The train of claim 3 wherein each second half has an arm extending centrally and radially inward, the outer circular periphery of the corresponding disc being in sealing engagement with the arm.
References Cited (Backward Citations)
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Cited
US1486175A
Cited
US1486954A
Cited
US1515052A
Cited
US1578111A
Cited
US1787649A
Cited
US3547094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |