US3915463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing
Assignee: Utex Industries Inc
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Filing: 1974-02-21
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Granted: 1975-10-28
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Expires: 1994-02-21
Abstract
Abstract A packing member, in either strip or annular form, the member having a head with a broad planar head surface, and first and second lip sections. Each of the lip sections has a laterally outwardly facing side surface and a base. A groove extends along the entire length, or circumference, of the packing member between the bases. At least one of the lip sections has a cavity in its base extending along the length or circumference of the packing member and forming a pressure trap.
Inventors
- 👤 Aaron J Pippert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232; F16J15/3236
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
96 words
An annular packing member comprising: first and second lip sections adjoined to form a relatively broad planar head surface, each of said lip sections having a laterally outwardly facing side surface and a base; said packing member having a groove between said bases, said groove extending the circumference of said packing member and opening downwardly away from said head; said first lip section having a cavity in its base between its side surface and said groove, said cavity extending the circumference of said packing member, opening downwardly away from said head, and forming a pressure trap.
Claim 2
Dependent Claim
96 words
An annular packing member comprising: first and second lip sections adjoined to form a relatively broad planar head surface, each of said lip sections having a laterally outwardly facing side surface and a base; said packing member having a groove between said bases, said groove extending the circumference of said packing member and opening downwardly away from said head; said first lip section having a cavity in its base between its side surface and said groove, said cavity extending the circumference of said packing member, opening downwardly away from said head, and forming a pressure trap.
Claim 3
Dependent Claim
26 words
A packing member according to claim 1 wherein said cavity is partially defined by a laterally outermost surface which extends laterally outwardly from top to bottom.
Claim 4
Dependent Claim
30 words
A packing member according to claim 2 wherein the side surface of said one lip section and said laterally outermost surface of said cavity converge to form a leading edge.
Claim 5
Dependent Claim
18 words
A packing member according to claim 1 wherein said first lip section is the radially inner lip section.
Claim 6
Dependent Claim
18 words
A packing member according to claim 1 wherein said first lip section is the radially outer lip section.
Claim 7
Dependent Claim
15 words
A packing member according to claim 1 wherein said cavity is shallower than said groove.
Claim 8
Dependent Claim
21 words
A packing member according to claim 1 wherein said bases have base surfaces extending downwardly and laterally outwardly from said groove.
Claim 9
Dependent Claim
47 words
A packing member according to claim 1 wherein said second lip section has a second cavity in its base between its side surface and said groove, said second cavity extending the circumference of said packing member, opening downwardly away from said head, and forming a pressure trap.
Claim 10
Dependent Claim
95 words
An elongate strip packing member comprising: first and second lip sections adjoined to form a relatively broad planar head surface, each of said lip sections having a laterally outwardly facing side surface and a base; said packing member having a groove between said bases, said groove extending the length of said packing member and opening away from said head; said first lip section having a cavity in its base between its side surface and said groove, said cavity extending the length of said packing member, opening away from said head, and forming a pressure trap.
Claim 11
Dependent Claim
95 words
An elongate strip packing member comprising: first and second lip sections adjoined to form a relatively broad planar head surface, each of said lip sections having a laterally outwardly facing side surface and a base; said packing member having a groove between said bases, said groove extending the length of said packing member and opening away from said head; said first lip section having a cavity in its base between its side surface and said groove, said cavity extending the length of said packing member, opening away from said head, and forming a pressure trap.
Claim 12
Dependent Claim
26 words
A packing member according to claim 9 wherein said cavity is partially defined by a laterally outermost surface which extends laterally outwardly from top to bottom.
Claim 13
Dependent Claim
30 words
A packing member according to claim 10 wherein the side surface of said one lip section and said laterally outermost surface of said cavity converge to form a leading edge.
Claim 14
Dependent Claim
15 words
A packing member according to claim 9 wherein said cavity is shallower than said groove.
Claim 15
Dependent Claim
21 words
A packing member according to claim 9 wherein said bases have base surfaces extending downwardly and laterally outwardly from said groove.
Claim 16
Dependent Claim
47 words
A packing member according to claim 9 wherein said second lip section has a second cavity in its base between its side surface and said groove, said second cavity extending the length of said packing member, opening downwardly away from said head, and forming a pressure trap.
Claim 17
Dependent Claim
16 words
A packing member according to claim 14 further being symmetrical about a plane bisecting said groove.
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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |