Patent US3662704A successfully refreshed from Google Patents.
US3662704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic detection device
Assignee: Motors Liquidation Co
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Filing: 1970-07-20
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Granted: 1972-05-16
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Expires: 1990-07-20
Abstract
Abstract A fluidic detection device for detecting the presence of an article or component. The detection device has a housing having a fluid passage therein and a detector portion having a magnet attracted to the housing adjacent to and closing the fluid passage and a catwhisker type detector element secured to the magnet and adapted to contact the article or component. Contact between the catwhisker and the article causes the magnet to open the fluid passage which controls a fluid signal to indicate the presence of the article.
Inventors
- 👤 Fred W Dega
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:33
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/005; Y; Y10; Y10T; Y10T137/00; Y10T137/206
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
A fluidic detection device for detecting a moving article comprising, a housing including a chamber having an end wall and cover means for said chamber opposite said end wall, fluid passage means in said housing communicating with said chamber through the end wall; and magnetic means having a magnet portion in said chamber adjacent said fluid passage means and being attracted to the end wall of said chamber to close said passage means from said chamber, and detection means secured to said magnet portion and extending through said cover means for contacting the article and responding to contact of the article to move said magnet portion to open said passage means to said chamber; said magnet portion returning to close said passage when the article moves out of contact with said detector means.
Claim 2
Dependent Claim
133 words
A fluidic detection device for detecting a moving article comprising, a housing including a chamber having an end wall and cover means for said chamber opposite said end wall, fluid passage means in said housing communicating with said chamber through the end wall; and magnetic means having a magnet portion in said chamber adjacent said fluid passage means and being attracted to the end wall of said chamber to close said passage means from said chamber, and detection means secured to said magnet portion and extending through said cover means for contacting the article and responding to contact of the article to move said magnet portion to open said passage means to said chamber; said magnet portion returning to close said passage when the article moves out of contact with said detector means.
Claim 3
Dependent Claim
181 words
A fluidic detection device for detecting a moving article comprising a fluid souRce housing means including a chamber having an end wall and cover means for said chamber opposite said end wall, fluid passage means in said housing communicating with said chamber through the end wall and being in fluid communication with said fluid source; magnetic means having a magnet portion in said chamber adjacent said fluid passage means and being attracted to the end wall of said chamber to close said passage means from said chamber, and detection means secured to said magnet portion and extending through said cover means for contacting the article and responding to contact of the article to move said magnet portion to open said passage means to said chamber; said magnet portion returning to close said passage when the article moves out of contact with said detector means; and fluidic amplifier means in fluid communication with said source and said fluid passage means for emitting one signal when said magnet portion is closing said passage means and another signal when said passage means is open.
Claim 4
Dependent Claim
181 words
A fluidic detection device for detecting a moving article comprising a fluid souRce housing means including a chamber having an end wall and cover means for said chamber opposite said end wall, fluid passage means in said housing communicating with said chamber through the end wall and being in fluid communication with said fluid source; magnetic means having a magnet portion in said chamber adjacent said fluid passage means and being attracted to the end wall of said chamber to close said passage means from said chamber, and detection means secured to said magnet portion and extending through said cover means for contacting the article and responding to contact of the article to move said magnet portion to open said passage means to said chamber; said magnet portion returning to close said passage when the article moves out of contact with said detector means; and fluidic amplifier means in fluid communication with said source and said fluid passage means for emitting one signal when said magnet portion is closing said passage means and another signal when said passage means is open.
Claim 5
Dependent Claim
167 words
A fluid detection device for detecting a moving article comprising, a fluid source; a housing including a chamber having an end wall and cover means for said chamber opposite said end wall, fluid passage means in said housing communicating with said chamber through the end wall and being in fluid communication with said fluid source; and magnetic means, for providing a high attraction force to close said passage means and a diminishing attraction force when said passage means is opening, including a closing portion in said chamber adjacent said fluid passage means and being attracted to the end wall of said chamber to close said passage means from said chamber, and detection means secured to said closing portion and extending through said cover means for contacting the article and responding to contact of the article to move said closing portion to open said passage means to said chamber; said closing portion returning to close said passage when the article moves out of contact with said detector means.
Claim 6
Dependent Claim
167 words
A fluid detection device for detecting a moving article comprising, a fluid source; a housing including a chamber having an end wall and cover means for said chamber opposite said end wall, fluid passage means in said housing communicating with said chamber through the end wall and being in fluid communication with said fluid source; and magnetic means, for providing a high attraction force to close said passage means and a diminishing attraction force when said passage means is opening, including a closing portion in said chamber adjacent said fluid passage means and being attracted to the end wall of said chamber to close said passage means from said chamber, and detection means secured to said closing portion and extending through said cover means for contacting the article and responding to contact of the article to move said closing portion to open said passage means to said chamber; said closing portion returning to close said passage when the article moves out of contact with said detector means.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |