Patent US4012798A successfully refreshed from Google Patents.
US4012798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable emergency eye wash fountain
Assignee: Fendall Co
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Filing: 1975-09-29
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Granted: 1977-03-22
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Expires: 1995-09-29
Abstract
Abstract A portable molded plastic housing contains a reservoir of wash liquid such as water spaced above a basin having two opposed liquid spray nozzles. The nozzles are normally capped by an elastic cap over each, the two caps being joined by a strap by which fast and simultaneous removal of the caps is accomplished upon emergency need. The reservoir feeds solely by gravity to the nozzles upon removal of the caps. Liquid within the reservoir attains room temperature to improve user comfort and is free from contamination by pipe scale, yet is instantly available at a work station to give several minutes of eye-flushing spray.
Inventors
- 👤 John R. Liautaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:07
CPC Classifications
A; A61; A61H; A61H35/00; A61H35/02
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
89 words
An emergency safety eye wash fountain comprising spray nozzle means positioned at a location for spraying the eyes of a worker and comprising: a portable, unitary housing; said housing having wall means defining an unpressurized liquid reservoir in said housing; said nozzle means being located in said wall means in immediate fluid communication with said reservoir; said resevoir being located gravitationally above said nozzle means; and quick-release valve means for opening said nozzle means for instantaneous initiation of a continuing, drenching flow of eye wash liquid from said revervoir.
Claim 2
Dependent Claim
89 words
An emergency safety eye wash fountain comprising spray nozzle means positioned at a location for spraying the eyes of a worker and comprising: a portable, unitary housing; said housing having wall means defining an unpressurized liquid reservoir in said housing; said nozzle means being located in said wall means in immediate fluid communication with said reservoir; said resevoir being located gravitationally above said nozzle means; and quick-release valve means for opening said nozzle means for instantaneous initiation of a continuing, drenching flow of eye wash liquid from said revervoir.
Claim 3
Dependent Claim
30 words
A fountain as defined in claim 1, said fountain further having a carrying handle atop the reservoir to facilitate manual portability and for hanging placement thereby near a work station.
Claim 4
Dependent Claim
23 words
A fountain as defined in claim 1, further comprising a basin area formed integrally in said fountain housing below and between said nozzles.
Claim 5
Dependent Claim
125 words
An emergency safety eye wash fountain comprising spray nozzle means positioned at a location for spraying the eyes of a worker and comprising: an unpressurized liquid reservoir in fluid communication with said nozzle means and located gravitationally above said nozzle means; quick-release valve means for opening said nozzle means for instantaneous initiation of a continuing, drenching flow of eye wash liquid from said reservoir; and wherein said quick-release valve means comprises an elastic nozzle cover cap, a strap connected to said cap positioned to be normally engaged by the worker and pulled from the nozzle means upon engagement, the cap being engageable about said nozzle means and sealing said nozzle means to prevent any flow of liquid from said reservoir until removal of said cap.
Claim 6
Dependent Claim
125 words
An emergency safety eye wash fountain comprising spray nozzle means positioned at a location for spraying the eyes of a worker and comprising: an unpressurized liquid reservoir in fluid communication with said nozzle means and located gravitationally above said nozzle means; quick-release valve means for opening said nozzle means for instantaneous initiation of a continuing, drenching flow of eye wash liquid from said reservoir; and wherein said quick-release valve means comprises an elastic nozzle cover cap, a strap connected to said cap positioned to be normally engaged by the worker and pulled from the nozzle means upon engagement, the cap being engageable about said nozzle means and sealing said nozzle means to prevent any flow of liquid from said reservoir until removal of said cap.
Claim 7
Dependent Claim
56 words
A fountain as defined in claim 4, wherein said strap is formed integrally with said cap and has a reinforcement band about a circumference of said cap at a lower portion thereof, thereby to assure a tight elastic seal about each nozzle and positive removal of said caps upon yanking of the strap by a user.
Claim 8
Independent Claim
85 words
An apparatus for producing upon emergency demand a continuing flow of liquid for flushing body tissues, said apparatus comprising: an unpressurized reservoir containing said liquid; a nozzle in fluid communication with said reservoir, said nozzle being located below said reservoir for gravity-feed of liquid thereto; and flow control means for initiating a flow of liquid through said nozzle; said flow control means comprising a removable cap placed over an outlet aperture of said nozzle, said cap being quickly removable by a user in an emergency.
Claim 9
Independent Claim
85 words
An apparatus for producing upon emergency demand a continuing flow of liquid for flushing body tissues, said apparatus comprising: an unpressurized reservoir containing said liquid; a nozzle in fluid communication with said reservoir, said nozzle being located below said reservoir for gravity-feed of liquid thereto; and flow control means for initiating a flow of liquid through said nozzle; said flow control means comprising a removable cap placed over an outlet aperture of said nozzle, said cap being quickly removable by a user in an emergency.
Claim 10
Independent Claim
104 words
An apparatus for producing upon emergency demand a continuing flow of liquid for flushing body tissues, said apparatus comprising: an unpressurized reservoir containing said liquid; a nozzle in fluid communication with said reservoir, said nozzle being located below said reservoir for gravity-feed of liquid thereto; and flow control means for initiating a flow of liquid through said nozzle; a flow control orifice placed between said nozzle and said reservoir, the orifice maintaining a substantially constant rate and pressure of flow through the nozzle despite a decrease in pressure head due to drop in liquid level in said reservoir until said reservoir is substantially exhausted.
Claim 11
Independent Claim
104 words
An apparatus for producing upon emergency demand a continuing flow of liquid for flushing body tissues, said apparatus comprising: an unpressurized reservoir containing said liquid; a nozzle in fluid communication with said reservoir, said nozzle being located below said reservoir for gravity-feed of liquid thereto; and flow control means for initiating a flow of liquid through said nozzle; a flow control orifice placed between said nozzle and said reservoir, the orifice maintaining a substantially constant rate and pressure of flow through the nozzle despite a decrease in pressure head due to drop in liquid level in said reservoir until said reservoir is substantially exhausted.
Claim 12
Dependent Claim
128 words
An emergency eye wash fountain comprising, in combination: a portable housing; a liquid reservoir in said housing open at an upper portion thereof to atmospheric pressure; a pair of generally opposed spray nozzles affixed in a lower portion of said housing, each nozzle being in fluid communication with said reservoir; a basin formed in said housing between and below said nozzles, said basin having a drainage aperture formed in a lowermost position thereof; a recess formed in said housing above and behind said basin of a size sufficient to permit placement of a user's head thereinto with his eyes in a line of spray between the nozzles during use; and quick release flow control caps overlying each of said nozzles and removeable upon need to initiate liquid spray.
Claim 13
Dependent Claim
128 words
An emergency eye wash fountain comprising, in combination: a portable housing; a liquid reservoir in said housing open at an upper portion thereof to atmospheric pressure; a pair of generally opposed spray nozzles affixed in a lower portion of said housing, each nozzle being in fluid communication with said reservoir; a basin formed in said housing between and below said nozzles, said basin having a drainage aperture formed in a lowermost position thereof; a recess formed in said housing above and behind said basin of a size sufficient to permit placement of a user's head thereinto with his eyes in a line of spray between the nozzles during use; and quick release flow control caps overlying each of said nozzles and removeable upon need to initiate liquid spray.
Claim 14
Dependent Claim
32 words
A fountain as defined in claim 8, further comprising: a flow-restricted orifice upstream of each of the nozzles, the orifice maintaining a near-constant rate of flow despite variation in liquid head pressure.
Claim 15
Dependent Claim
39 words
A fountain as defined in claim 8, further comprising: a handle means on an upper portion of said housing to facilitate manual carrying of said fountain and suspension of said housing upon a vertical surface near a work station.
Claim 16
Dependent Claim
26 words
A fountain as defined in claim 8, further comprising: a reservoir liquid level indication means extending from said reservoir into a visible location outside said housing.
Claim 17
Dependent Claim
26 words
A fountain as defined in claim 8, further comprising: electric temperature control means selectively activatable to maintain reservoir temperature at a comfort level above ambient temperature.
Claim 18
Dependent Claim
87 words
An emergency eye wash station for spraying water into a user's eyes comprising: a pair of spaced opposed spray nozzles defining a wash zone therebetween; a container open to atmosphere extending above the nozzles and in communication therewith for supplying water at room temperature; elastic caps elastically held to block the spray nozzles and removable therefrom by a user of said fountain; and a strap extending across the wash zone for manual engagement by the user to immediately initiate room temperature drenching spray into the wash zone.
Claim 19
Dependent Claim
87 words
An emergency eye wash station for spraying water into a user's eyes comprising: a pair of spaced opposed spray nozzles defining a wash zone therebetween; a container open to atmosphere extending above the nozzles and in communication therewith for supplying water at room temperature; elastic caps elastically held to block the spray nozzles and removable therefrom by a user of said fountain; and a strap extending across the wash zone for manual engagement by the user to immediately initiate room temperature drenching spray into the wash zone.
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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) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |