Patent US3608570A successfully refreshed from Google Patents.
US3608570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve unit
Assignee: Individual
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Filing: 1969-02-27
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Granted: 1971-09-28
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Expires: 1989-02-27
Abstract
Abstract A valve unit is provided having an external fusible safety cutoff means. The unit is generally utilized as part of quickdisconnect couplings used in connecting lines containing combustible fluids, such as gas. The valve unit functions as a plug part and is provided with a rod member adapted at one end to engage a self-closing valve contained in a communicating socket part, which self-closing valve may be disposed to close the flow of fluid through said socket part, and having a flange at the other end in contact with, and constrained by, a fusible material. The fusible material constitutes an outside wall of said unit or is in the form of a ring which bonds the flange to the housing. When the temperature of the surrounding area reaches a predetermined degree, the material fuses, losing its constraining influence on the rod member which is then pushed outward allowing the self-closing valve to shut off the flow of fluid through the line.
Inventors
- 👤 Serge N Mckhann
- 👤 William T Bahr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:03
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/40; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1819
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
148 words
A valve unit comprising an L-shaped housing having a nose portion adapted for coupling in a fluid line formed therethrough, a rod member axially disposed in said nose portion of said housing and having a flange formed at one end, the opposite end being adapted to engage a self-closing valve and unseat same, an apertured sleeve in the line of said nose portion slideably receiving and supporting said rod member, said sleeve providing for fluid flow through said line, fusible material at one end of said nose portion adapted to fuse at a predetermined temperature constituting a wall portion of said housing and being in contact with said flange end of said rod member so as to constrain said rod, the dimensions of said flange and fusible material being such that upon said predetermined temperature being reached, said wall portion fuses thereby releasing said rod for longitudinal movement.
Claim 2
Dependent Claim
148 words
A valve unit comprising an L-shaped housing having a nose portion adapted for coupling in a fluid line formed therethrough, a rod member axially disposed in said nose portion of said housing and having a flange formed at one end, the opposite end being adapted to engage a self-closing valve and unseat same, an apertured sleeve in the line of said nose portion slideably receiving and supporting said rod member, said sleeve providing for fluid flow through said line, fusible material at one end of said nose portion adapted to fuse at a predetermined temperature constituting a wall portion of said housing and being in contact with said flange end of said rod member so as to constrain said rod, the dimensions of said flange and fusible material being such that upon said predetermined temperature being reached, said wall portion fuses thereby releasing said rod for longitudinal movement.
Claim 3
Dependent Claim
28 words
A valve unit as defined in claim 1 wherein said nose portion of said housing includes an annular groove adapted to receive locking means in a socket unit.
Claim 4
Dependent Claim
25 words
A valve unit as defined in claim 1 wherein said fusible material is indented in said housing, and supported by tabs projecting from said housing.
Claim 5
Dependent Claim
175 words
A valve unit comprising an L-shaped housing having a nose portion and a fluid line formed therethrough, a rod member axially disposed in said nose portion of said housing and having a flange formed at one end the opposite end being adapted to engage a self-closing valve and unseat same, an apertured sleeve in the line of said nose portion slideably receiving and supporting said rod member, said sleeve providing for fluid flow through said line, a backstop forming an internal wall in said line and having a central opening slideably receiving said rod member, a helical spring surrounding said rod, bearing against said backstop and pressing said flange outward, fusible material at one end of said nose portion adapted to fuse at a predetermined temperature forming an external wall portion of said housing and being in contact with said flange so as to constrain said rod, the dimensions of said flange and fusible material being such that upon said predetermined temperature being reached said wall portion fuses thereby releasing said rod for longitudinal movement.
Claim 6
Dependent Claim
175 words
A valve unit comprising an L-shaped housing having a nose portion and a fluid line formed therethrough, a rod member axially disposed in said nose portion of said housing and having a flange formed at one end the opposite end being adapted to engage a self-closing valve and unseat same, an apertured sleeve in the line of said nose portion slideably receiving and supporting said rod member, said sleeve providing for fluid flow through said line, a backstop forming an internal wall in said line and having a central opening slideably receiving said rod member, a helical spring surrounding said rod, bearing against said backstop and pressing said flange outward, fusible material at one end of said nose portion adapted to fuse at a predetermined temperature forming an external wall portion of said housing and being in contact with said flange so as to constrain said rod, the dimensions of said flange and fusible material being such that upon said predetermined temperature being reached said wall portion fuses thereby releasing said rod for longitudinal movement.
Claim 7
Dependent Claim
164 words
A valve unit comprising an L-shaped housing having a nose portion and a fluid line formed therethrough, a rod member axially disposed in said nose portion of said housing and having a flange formed at one end the opposite end being adapted to engage a self-closing valve and unseat same, a backstop forming an internal wall portion in said line and having a central opening slideably receiving said rod member, said backstop being in a conical shape so as to support said rod member, a helical spring surrounding said rod, bearing against said backstop and pressing said flange outward, fusible material at one end of said nose portion adapted to fuse at a predetermined temperature forming an external wall portion of said housing and being in contact with said flange so as to constrain said rod, the dimensions of said flange and fusible material being such that upon said predetermined temperature being reached, said wall portion fuses thereby releasing said rod for longitudinal movement.
Claim 8
Dependent Claim
164 words
A valve unit comprising an L-shaped housing having a nose portion and a fluid line formed therethrough, a rod member axially disposed in said nose portion of said housing and having a flange formed at one end the opposite end being adapted to engage a self-closing valve and unseat same, a backstop forming an internal wall portion in said line and having a central opening slideably receiving said rod member, said backstop being in a conical shape so as to support said rod member, a helical spring surrounding said rod, bearing against said backstop and pressing said flange outward, fusible material at one end of said nose portion adapted to fuse at a predetermined temperature forming an external wall portion of said housing and being in contact with said flange so as to constrain said rod, the dimensions of said flange and fusible material being such that upon said predetermined temperature being reached, said wall portion fuses thereby releasing said rod for longitudinal movement.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |