Patent US3170701A successfully refreshed from Google Patents.
US3170701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing washer
Assignee: Precision Rubber Products Corp
•
Filing: 1961-05-15
•
Granted: 1965-02-23
•
Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 John W Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:57
CPC Classifications
F; F16; F16B; F16B43/00; F16B43/001; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
227 words
A SEALING WASHER FOR SEALING A BOLT RIVET, OR THE LIKE HAVING A HEAD AND A SHANK, COMPRISING AN OUTER SUPPORT RING FROMED WITH AN OUTER PORTION HAVING SUBSTANTIALLY PLANAR SIDES AN AN ANNULAR INNER MOORING PORTION OF REDUCED CROSS SECTIONAL THICKNESS SYMMETRICALLY FORMED WITH RESPECT TO SAID OUTER PORTION, MEANS IN SAID MOORING PORTION DEFINING A PLURALITY OF GENERALLY ARCUATELY FORMED OPENINGS THERETHROUGH POSITIONED WHOLLY WITHIN SAID MOORING PORTION AND CLOSELY ADJACENT THE INNER CIRCUMFERENCE OF SAID OUTER PORTION AND PROPORTIONED TO OCCUPY A MAJOR PORTION OF THE PERIPHERAL EXTENT OF SAID MOORING PORTION, AN ELASTOMERIC SEALING RING MOLDED ENTIRELY RADIALLY WITHIN SAID OUTER PORTION WITH INTEGRAL WEBS FORMED THROUGH SAID OPENINGS, SAID SEALING RING HAVING OUTER SIDE WALLS COTERMINOUS WITH THE SIDES OF SAID OUTER PORTION AND DIVERGING AXIALLY OUTWARDLY FROM A POINT ADJACENT THE JUNTION THEREOF AT SAID OUTER PORTION AND TERMINATING R ADIALLY INWARDLY OF THE INNERMOST EXTENT OF SAID MOORING PORTION, A CENTRALLY POSITIONED PERIPHERALLY CONTINUOUS CENTERING RIB FORMED IN SAID SEALING RING AND HAVING AN INSIDE DIAMETER PROPORTIONED TO FORM A CLOSE FIT ON SUCH SHANK TO HOLD SAID WASHER CENTERED THEREON, SAID DIVERGING SIDES BEING COMPRESSIBLE BY SAID HEAD RADIALLY INWARDLY INTO THE CLEARANCE BETWEEN IT AND SUCH SHANK SUBSTANTIALLY INTO THE PLANE OF THE OUTER PORTION TO FORM A COMPRESSION SEALING FIT HIGHLY RESISTANT TO FLOW OF FLUID THEREBY.
Claim 2
Dependent Claim
227 words
A SEALING WASHER FOR SEALING A BOLT RIVET, OR THE LIKE HAVING A HEAD AND A SHANK, COMPRISING AN OUTER SUPPORT RING FROMED WITH AN OUTER PORTION HAVING SUBSTANTIALLY PLANAR SIDES AN AN ANNULAR INNER MOORING PORTION OF REDUCED CROSS SECTIONAL THICKNESS SYMMETRICALLY FORMED WITH RESPECT TO SAID OUTER PORTION, MEANS IN SAID MOORING PORTION DEFINING A PLURALITY OF GENERALLY ARCUATELY FORMED OPENINGS THERETHROUGH POSITIONED WHOLLY WITHIN SAID MOORING PORTION AND CLOSELY ADJACENT THE INNER CIRCUMFERENCE OF SAID OUTER PORTION AND PROPORTIONED TO OCCUPY A MAJOR PORTION OF THE PERIPHERAL EXTENT OF SAID MOORING PORTION, AN ELASTOMERIC SEALING RING MOLDED ENTIRELY RADIALLY WITHIN SAID OUTER PORTION WITH INTEGRAL WEBS FORMED THROUGH SAID OPENINGS, SAID SEALING RING HAVING OUTER SIDE WALLS COTERMINOUS WITH THE SIDES OF SAID OUTER PORTION AND DIVERGING AXIALLY OUTWARDLY FROM A POINT ADJACENT THE JUNTION THEREOF AT SAID OUTER PORTION AND TERMINATING R ADIALLY INWARDLY OF THE INNERMOST EXTENT OF SAID MOORING PORTION, A CENTRALLY POSITIONED PERIPHERALLY CONTINUOUS CENTERING RIB FORMED IN SAID SEALING RING AND HAVING AN INSIDE DIAMETER PROPORTIONED TO FORM A CLOSE FIT ON SUCH SHANK TO HOLD SAID WASHER CENTERED THEREON, SAID DIVERGING SIDES BEING COMPRESSIBLE BY SAID HEAD RADIALLY INWARDLY INTO THE CLEARANCE BETWEEN IT AND SUCH SHANK SUBSTANTIALLY INTO THE PLANE OF THE OUTER PORTION TO FORM A COMPRESSION SEALING FIT HIGHLY RESISTANT TO FLOW OF FLUID THEREBY.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |