US3699998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calibrated pressure regulator
Assignee: Individual
•
Filing: 1970-12-11
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Granted: 1972-10-24
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Expires: 1990-12-11
Abstract
Abstract A miniaturized pressure regulator capable of being calibrated and thus making it possible to dispense with an additional pressure gauge, if desired. The components of the pressure regulator are maintained in position by leaf spring fasteners making it possible to quickly assemble and disassemble the pressure regulator.
Inventors
- 👤 Frank Baranowski Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:29
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/599; Y10T137/6154; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7826
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
349 words
A pressure regulator including a. a regulator body having an outer surface substantially in the shape of a solid of revolution, said regulator body defining an inlet passageway, an outlet passageway and a valve-seat-forming passageway interconnecting said inlet passageway and said outlet passageway; b. a movable valve element cooperating with the valve seat formed by said valve-seat-forming passageway to vary the effective area of said valve-seat-forming passageway; c. a first spring means biasing said valve element to the closed position thereof; d. a second spring means biasing said valve element to the open position thereof; e. a diaphragm interposed between said valve element and said second spring means and arranged to be acted upon by fluid pressure prevailing downstream from the location of said valveseat; f. a pressure control knob arranged in coaxial relation to said regulator body, provided with a screw-thread and forming an abutment for the end of said second spring remote from said diaphragm; g. a calibrating member arranged in coaxial relation to said regulator body, supported by said regulator body, pivotable about the axis of said regulator body relative to said regulator body and having a screw-thread in cooperative engagement with said screw-thread on said pressure control knob, the pivotal motion of said calibrating member about the axis of said regulator body relative to said regulator body resulting in a change of the axial spacing of said pressure control knob from said regulator body without pivotal motion of said pressure control knob relative to said regulator body; and h. said knob having an end surface adjacent said regulator body which is of diameter considerably larger than the major diameter of said screw-thread of said pressure control knob and the major diameter of the screw-thread of said calibrating member and substantially equal to the diameter of the portion of said regulator body adjacent said control knob, whereby a region of limited accessibility is established adjacent said end surface of said control knob; and wherein i. the radially outer surface of said calibrating member is provided with a tool-receiving recess located in said region of limited accessibility.
Claim 2
Dependent Claim
349 words
A pressure regulator including a. a regulator body having an outer surface substantially in the shape of a solid of revolution, said regulator body defining an inlet passageway, an outlet passageway and a valve-seat-forming passageway interconnecting said inlet passageway and said outlet passageway; b. a movable valve element cooperating with the valve seat formed by said valve-seat-forming passageway to vary the effective area of said valve-seat-forming passageway; c. a first spring means biasing said valve element to the closed position thereof; d. a second spring means biasing said valve element to the open position thereof; e. a diaphragm interposed between said valve element and said second spring means and arranged to be acted upon by fluid pressure prevailing downstream from the location of said valveseat; f. a pressure control knob arranged in coaxial relation to said regulator body, provided with a screw-thread and forming an abutment for the end of said second spring remote from said diaphragm; g. a calibrating member arranged in coaxial relation to said regulator body, supported by said regulator body, pivotable about the axis of said regulator body relative to said regulator body and having a screw-thread in cooperative engagement with said screw-thread on said pressure control knob, the pivotal motion of said calibrating member about the axis of said regulator body relative to said regulator body resulting in a change of the axial spacing of said pressure control knob from said regulator body without pivotal motion of said pressure control knob relative to said regulator body; and h. said knob having an end surface adjacent said regulator body which is of diameter considerably larger than the major diameter of said screw-thread of said pressure control knob and the major diameter of the screw-thread of said calibrating member and substantially equal to the diameter of the portion of said regulator body adjacent said control knob, whereby a region of limited accessibility is established adjacent said end surface of said control knob; and wherein i. the radially outer surface of said calibrating member is provided with a tool-receiving recess located in said region of limited accessibility.
Claim 3
Dependent Claim
125 words
A pressure regulator as specified in claim 1 wherein a. said calibrating member is provided with an outwardly flaring portion engaging the outer periphery of said diaphragm; b. an annular clamping member is arranged between said pressure control knob and said outwardly flaring portion of said calibrating member, said calibrating member extending axially through said annular clamping member and the outer periphery of said clamping member engaging the outer periphery of said outwardly flaring portion of said calibrating member; and wherein c. a plurality of leaf clamping springs engaging said regulator body and said clamping member with opposite ends thereof clamp said Clamping member and said outwardly flaring portion of said calibrating member against the outer periphery of said diaphragm and against said valve body.
Claim 4
Dependent Claim
123 words
A pressure regulator as specified in claim 2 wherein a. said pressure control knob is provided with a bore extending parallel to the axis thereof and receiving a spring-biased index pin projecting beyond the end surface of said pressure control knob adjacent said regulator body and having a substantially hemispherical tip on the end thereof projecting beyond said end surface of said pressure control knob; and wherein b. the surface of said annular clamping member adjacent said end surface of said pressure control knob is provided with a plurality of indexing recesses arranged in a circular pattern conforming with the circular trajectory of said hemispherical tip of said index pin resulting from pivotal motions of said pressure control knob about said axis thereof.
Claim 5
Dependent Claim
48 words
A pressure regulator as specified in claim 3 wherein said surface of said annular clamping member is provided with an upstanding projection forming a pair of abutment surfaces for said index pin and limiting the freedom of pivotal motion of said pressure control knob about said axis thereof.
Claim 6
Dependent Claim
26 words
A pressure regulator as specified in claim 2 wherein each of said plurality of clamping springs has a substantially S-shaped end and a substantially hook-shaped end.
Claim 7
Dependent Claim
328 words
A valve structure including a. a valve body having an outer surface substantially in the shape of a solid of revolution and defining an inlet passageway, an outlet passageway and a valve-seat-forming passageway connecting said inlet passageway to said outlet passageway, said valve body having on said outer surface thereof three recesses angularly displaced 120*; b. a movable valve element inside said valve body cooperating with the valve seat formed by said valve-seat-forming passageway to vary the effective area of said valve-seat-forming passageway; c. cover means arranged in coaxial relation to said valve body to close an opening in said valve body, said cover means having on the outer surface thereof three recesses angularly displaced 120* and each arranged in a common plane with the axis of said valve body and one of said three recesses on said outer surface of said valve body; d. three generally C-shaped clamping leaf springs each engaging with one end thereof on of said three recesses in said outer surface of said valve body and each engaging with the other end thereof one of said three recesses in said cover means; and wherein e. each of said three clamping leaf springs has a substantially S-shaped end and a substantially hook-shaped end; and wherein f. said three recesses in said outer surface of said valve body and said three recesses in said cover means are shaped in such a fashion that each of said recesses receiving said substantially hook-shaped end of one of said clamping leaf springs is closed by ridge having at least in part a radius of curvature equal to the radius of curvature of the hook-shaped end of each of said clamping leaf springs, and that each of the recesses receiving said substantially S-shaped end of one of said clamping leaf springs is closed by a ridge having a smaller radius of curvature than the radius of curvature of the bend of said S-shaped end remote from said valve body.
Claim 8
Dependent Claim
328 words
A valve structure including a. a valve body having an outer surface substantially in the shape of a solid of revolution and defining an inlet passageway, an outlet passageway and a valve-seat-forming passageway connecting said inlet passageway to said outlet passageway, said valve body having on said outer surface thereof three recesses angularly displaced 120*; b. a movable valve element inside said valve body cooperating with the valve seat formed by said valve-seat-forming passageway to vary the effective area of said valve-seat-forming passageway; c. cover means arranged in coaxial relation to said valve body to close an opening in said valve body, said cover means having on the outer surface thereof three recesses angularly displaced 120* and each arranged in a common plane with the axis of said valve body and one of said three recesses on said outer surface of said valve body; d. three generally C-shaped clamping leaf springs each engaging with one end thereof on of said three recesses in said outer surface of said valve body and each engaging with the other end thereof one of said three recesses in said cover means; and wherein e. each of said three clamping leaf springs has a substantially S-shaped end and a substantially hook-shaped end; and wherein f. said three recesses in said outer surface of said valve body and said three recesses in said cover means are shaped in such a fashion that each of said recesses receiving said substantially hook-shaped end of one of said clamping leaf springs is closed by ridge having at least in part a radius of curvature equal to the radius of curvature of the hook-shaped end of each of said clamping leaf springs, and that each of the recesses receiving said substantially S-shaped end of one of said clamping leaf springs is closed by a ridge having a smaller radius of curvature than the radius of curvature of the bend of said S-shaped end remote from said valve body.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |