US4060099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled pressure drop valve
Assignee: Individual
•
Filing: 1975-01-03
•
Granted: 1977-11-29
•
Expires: 1995-01-03
Abstract
Abstract A valve having stacked disks with alternate circular grooves in the faces thereof to provide a high pressure drop surface in fluid flow transverse to said grooves and ridges. The disks are circular in shape with a circular center opening to provide a central fluid opening when the disks are stacked with the center openings in register. Fluid enters the center opening and flows radially between the adjacent faces of a pair of disks to flow transversely across the continuous circular grooves and ridges.
Inventors
- 👤 Charles L. Bates, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:51
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/08; F16K3/00; F16K3/30; F16K3/34; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86734; Y10T137/86759
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
A circular disk for stacking in register with similar disks in a valve body to provide an extended flow-resistant surface area comprising a disk having a central annular opening, a circular outer perimeter with each facial surface having a plurality of concentric annular ridges thereon and having interlocking means to hold said disk in register with and to space said disk from an adjacent disk, said interlocking means comprises an outer rim which encircles the outer perimeter of said disk to form an overlapping means to overlap an adjacent disk.
Claim 2
Dependent Claim
90 words
A circular disk for stacking in register with similar disks in a valve body to provide an extended flow-resistant surface area comprising a disk having a central annular opening, a circular outer perimeter with each facial surface having a plurality of concentric annular ridges thereon and having interlocking means to hold said disk in register with and to space said disk from an adjacent disk, said interlocking means comprises an outer rim which encircles the outer perimeter of said disk to form an overlapping means to overlap an adjacent disk.
Claim 3
Dependent Claim
13 words
The circular disk of claim 1 wherein said outer rim has openings therein.
Claim 4
Dependent Claim
22 words
The circular disk of claim 1 wherein the openings in said rim comprise at least about 65% of perimeter of said rim.
Claim 5
Dependent Claim
95 words
A circular disk for stacking in register with similar disks in a valve body to provide an extended flow-resistant surface area comprising a disk having a central annular opening, a circular outer perimeter with each facial surface having a plurality of concentric annular ridges thereon and having interlocking means to hold said disk in register with and to space said disk from an adjacent disk, said interlocking means comprising four spaced feet spaced about the outer perimeter of said disk to form an overlapping means to overlap an adjacent disk and to space it therefrom.
Claim 6
Dependent Claim
95 words
A circular disk for stacking in register with similar disks in a valve body to provide an extended flow-resistant surface area comprising a disk having a central annular opening, a circular outer perimeter with each facial surface having a plurality of concentric annular ridges thereon and having interlocking means to hold said disk in register with and to space said disk from an adjacent disk, said interlocking means comprising four spaced feet spaced about the outer perimeter of said disk to form an overlapping means to overlap an adjacent disk and to space it therefrom.
References Cited (Backward Citations)
US2887127A
Cited
DE1008977B
Cited
US3199540A
Cited
GB1220275A
Cited
US3588037A
Cited
US3680596A
Cited
US3690344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |