US3598145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check valve
Assignee: BRUNSWICK VALVE & CONTROL Inc A CORP OF DE
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Filing: 1969-06-30
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Granted: 1971-08-10
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Expires: 1989-06-30
Abstract
Abstract A check valve having a valve seat which may be readily replaced, said seat being comprised of a high-temperature plastic material. Cooperating with the seat is a disc member which also is comprised of a high-temperature plastic material, the disc member being characterized by a sail which will be acted upon by fluid in the system to cause rapid and full opening and closing of the valve regardless of the position thereof.
Inventors
- 👤 Joseph Wolfson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:58
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
219 words
A valve assembly comprising: a valve body; input connector means on said body whereby said body may be connected to a source of fluid; output connector means on said body whereby said body may be connected to apparatus to which fluid is to be delivered from the source; apertured valve-seat-supporting means disposed in said body intermediate of said input and output connector means; a valve seat positioned in the aperture in said supporting means, said valve seat being comprised of plastic material and having an inner frustoconical aperture-defining surface, the valve seat further having an outer surface-defining portion and a flange extending outwardly from at least one end thereof, said outer-surface-defining portion having an external shape complementary to the shape of the aperture in said supporting means and said flange having a size and shape sufficient to retain said valve seat in the aperture in said seat-supporting means, the valve seat being free to move a limited distance axially of said aperture in said supporting means and said flange being spaced from said seat-supporting means when said valve is in the closed position; and a one-piece disk member comprised of plastic material which cooperates solely with said seat to perform the valving function, said disk member having a frustoconical plug portion for mating with and engaging said valve-seat-aperture-defining surface.
Claim 2
Dependent Claim
219 words
A valve assembly comprising: a valve body; input connector means on said body whereby said body may be connected to a source of fluid; output connector means on said body whereby said body may be connected to apparatus to which fluid is to be delivered from the source; apertured valve-seat-supporting means disposed in said body intermediate of said input and output connector means; a valve seat positioned in the aperture in said supporting means, said valve seat being comprised of plastic material and having an inner frustoconical aperture-defining surface, the valve seat further having an outer surface-defining portion and a flange extending outwardly from at least one end thereof, said outer-surface-defining portion having an external shape complementary to the shape of the aperture in said supporting means and said flange having a size and shape sufficient to retain said valve seat in the aperture in said seat-supporting means, the valve seat being free to move a limited distance axially of said aperture in said supporting means and said flange being spaced from said seat-supporting means when said valve is in the closed position; and a one-piece disk member comprised of plastic material which cooperates solely with said seat to perform the valving function, said disk member having a frustoconical plug portion for mating with and engaging said valve-seat-aperture-defining surface.
Claim 3
Dependent Claim
41 words
The apparatus of claim 1 wherein said disk member further comprises: a guidepost extending coaxially of said plug portion; and a sail member disposed intermediate said plug portion and guidepost, said sail portion having radially extending upper and lower reaction surfaces.
Claim 4
Dependent Claim
39 words
The apparatus of claim 1 further comprising: an apertured guide member supported by said body and extending inwardly toward said seat, said guide member cooperating with said disk member to define the direction of movement of said disk member.
Claim 5
Dependent Claim
21 words
The apparatus of claim 1 wherein said outer-surface-defining portion of said seat and said aperture in said supporting means are tapered.
Claim 6
Dependent Claim
216 words
A valve assembly comprising: a valve body; input connector means on said body whereby said body may be connected to a source of fluid; output connector means on said body whereby said body may be connected to apparatus to which fluid is to be delivered from the source; valve-seat-supporting means disposed in said body intermediate of said input and output connector means, said supporting means having a tapered aperture therethrough; an apertured valve seat positioned in the aperture in said supporting means, said valve seat having a tapered outer-surface-defining portion and a flange extending outwardly from one end thereof, said tapered portion having an external shape complementary to the shape of the aperture in said supporting means and said flange having a size and shape sufficient to retain said valve seat in the aperture in said seat-supporting means; and a disk member which cooperates with said seat to perform the valving function, said disk member being movable with respect to said valve seat between an open position for the valve spaced from said valve seat and a closed position for the valve engaging at least part of said valve seat; said valve seat being free to move a limited distance axially of said aperture in said supporting means when said valve is in said open position.
Claim 7
Dependent Claim
216 words
A valve assembly comprising: a valve body; input connector means on said body whereby said body may be connected to a source of fluid; output connector means on said body whereby said body may be connected to apparatus to which fluid is to be delivered from the source; valve-seat-supporting means disposed in said body intermediate of said input and output connector means, said supporting means having a tapered aperture therethrough; an apertured valve seat positioned in the aperture in said supporting means, said valve seat having a tapered outer-surface-defining portion and a flange extending outwardly from one end thereof, said tapered portion having an external shape complementary to the shape of the aperture in said supporting means and said flange having a size and shape sufficient to retain said valve seat in the aperture in said seat-supporting means; and a disk member which cooperates with said seat to perform the valving function, said disk member being movable with respect to said valve seat between an open position for the valve spaced from said valve seat and a closed position for the valve engaging at least part of said valve seat; said valve seat being free to move a limited distance axially of said aperture in said supporting means when said valve is in said open position.
Claim 8
Dependent Claim
30 words
The apparatus of claim 5 wherein sAid flange is spaced from said seat-supporting means when said valve is in the closed position with said disk member seated in said seat.
Claim 9
Dependent Claim
26 words
The apparatus of claim 6 wherein said seat and disk member are both comprised of a plastic material and said body and supporting means are metal.
Claim 10
Dependent Claim
25 words
The apparatus of claim 7 wherein the aperture in said seat is frustoconical in shape with its smaller diameter opening facing in the upstream direction.
Claim 11
Dependent Claim
52 words
The apparatus of claim 8 wherein said disk member comprises: a plug portion commensurate in shape with the aperture in said seat; a guidepost extending coaxially of said plug portion; and a sail member disposed intermediate said plug portion and guidepost, said sail portion having radially extending upper and lower reaction surfaces.
Claim 12
Dependent Claim
53 words
The apparatus of claim 9 wherein said valve body comprises: means defining a fluid path between said connector means; means defining an access port through said valve body downstream of said supporting means; and cap means normally closing said access port, said cap means defining a channel which engages said disk means guidepost.
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |