Patent US3854737A successfully refreshed from Google Patents.
US3854737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination rotary and reciprocating unitary sealing mechanism
Assignee: CHEMPRENE
•
Filing: 1974-01-21
•
Granted: 1974-12-17
•
Expires: 1994-01-21
Abstract
Abstract A sealing mechanism is disclosed for use in combination rotary and reciprocating applications. In particular, the sealing mechanism disclosed can be used on single and double acting installations as a sealing mechanism in cylinders, pumps, valves, and rods. The sealing mechanism generally comprises a ring-like structure of the inner and outer sealing surfaces. Top and bottom portions of the seal are flat surfaces which contain channels which cause the side walls of the seal to flex when pressure is applied to such channels thereby substantially increasing the pressure of the sealing mechanism to the surface to which it is mated. In particular, the advantage of using the present seal is that excessive amounts of pressure need not be exerted by the seal against the surface to which it is mated. The seal only exerts increased pressure against the mating surface when pressure is applied to one of the flat surfaces of the seal. This reduces friction and heat generation and contributes to operating efficiency and longevity of the seal.
Inventors
- 👤 H Gilliam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:27
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232; F16J15/3236
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
227 words
A sealing mechanism described in relation to a horizontal plane which intersects said mechanism into upper and lower segments; said upper segment comprising an upper surface; a channel, located in said upper surface and projecting towards said plane; a first wall vertically positioned with respect to said plane said connected to said upper surface; a second side wall vertically positioned with respect to said plane and connected to a first lip, which lip is connected to said upper surface and comprises an upper face which is attached to said upper surface, a lower face which is attached to said second side wall, which upper and lower faces converge and are attached to a vertically positioned side face; said lower segment comprising a lower surface; a channel, located in said lower surface and projecting towards said plane; a third side wall vertically positioned with respect to said plane and connected to said lower surface and to said first side wall; a fourth side wall vertically positioned with respect to said plane, connected to said second side wall and to a second lip, which lip is connected to said lower surface and comprises an upper face which is attached to said fourth side wall, a lower face which is connected to said lower surface, which upper and lower faces converge and are attached to a vertically positioned side face.
Claim 2
Dependent Claim
227 words
A sealing mechanism described in relation to a horizontal plane which intersects said mechanism into upper and lower segments; said upper segment comprising an upper surface; a channel, located in said upper surface and projecting towards said plane; a first wall vertically positioned with respect to said plane said connected to said upper surface; a second side wall vertically positioned with respect to said plane and connected to a first lip, which lip is connected to said upper surface and comprises an upper face which is attached to said upper surface, a lower face which is attached to said second side wall, which upper and lower faces converge and are attached to a vertically positioned side face; said lower segment comprising a lower surface; a channel, located in said lower surface and projecting towards said plane; a third side wall vertically positioned with respect to said plane and connected to said lower surface and to said first side wall; a fourth side wall vertically positioned with respect to said plane, connected to said second side wall and to a second lip, which lip is connected to said lower surface and comprises an upper face which is attached to said fourth side wall, a lower face which is connected to said lower surface, which upper and lower faces converge and are attached to a vertically positioned side face.
Claim 3
Dependent Claim
23 words
The seal mechanism of claim 1 further characterized in that said upper and lower segments are symmetrical with respect to said horizontal plane.
Claim 4
Dependent Claim
21 words
The seal mechanism of claim 1 further characterized in that first and third side walls are located in a single plane.
Claim 5
Dependent Claim
22 words
The seal mechanism of claim 1 further characterized in that said second and fourth side walls are located in a single plane.
Claim 6
Dependent Claim
17 words
The seal mechanism of claim 1 further characterized in that said channels have a semi-circular cross-sectional shape.
Claim 7
Dependent Claim
24 words
The seal mechanism of claim 1 further characterized in that said first side wall contains a protrusion which is connected to said upper surface.
Claim 8
Dependent Claim
24 words
The seal mechanism of claim 1 further characterized in that said third side wall contains a protrusion which is connected to said lower surface.
Claim 9
Dependent Claim
19 words
The seal mechanism of claim 1 further characterized in that said sealing mechanism is produced from an elastomeric polymer.
Claim 10
Dependent Claim
26 words
The seal mechanism of claim 1 further characterized in that said first and third, and said second and fourth side walls are parallel to each other.
Claim 11
Dependent Claim
12 words
The sealing mechanism of claim 1 wherein the mechanism is a ring.
Claim 12
Dependent Claim
193 words
A sealing mechanism having a general ring-like construction, described in relation to a vertical axis passing through an axial center of said sealing mechanism comprising: a. a vertically positioned outer side wall having an upper end and a lower end; b. an upper lip attached to the upper end of the outer side wall and a lower lip attached to the lower end of the outer side wall, said upper and lower lips protruding from said outer side wall in a radial direction away from said axis, said upper and lower lips comprising converging upper and lower faces which extend in a radial direction away from said axis and meet at a side face which is vertically positioned; c. an upper surface connected to said upper face of said upper lip and extending radially from said upper face towards said axis; d. an upper channel located in said upper surface; e. a lower surface connected to said lower face of said lower lip and extending radially from said face towards said axis; f. a lower channel located in said lower surface; and g. an inner side wall connecting said upper and lower surfaces.
Claim 13
Dependent Claim
193 words
A sealing mechanism having a general ring-like construction, described in relation to a vertical axis passing through an axial center of said sealing mechanism comprising: a. a vertically positioned outer side wall having an upper end and a lower end; b. an upper lip attached to the upper end of the outer side wall and a lower lip attached to the lower end of the outer side wall, said upper and lower lips protruding from said outer side wall in a radial direction away from said axis, said upper and lower lips comprising converging upper and lower faces which extend in a radial direction away from said axis and meet at a side face which is vertically positioned; c. an upper surface connected to said upper face of said upper lip and extending radially from said upper face towards said axis; d. an upper channel located in said upper surface; e. a lower surface connected to said lower face of said lower lip and extending radially from said face towards said axis; f. a lower channel located in said lower surface; and g. an inner side wall connecting said upper and lower surfaces.
Claim 14
Dependent Claim
23 words
The seal mechanism of claim 11 further characterized in that said Inner side wall contains two lips which protrude radially toward said axis.
Claim 15
Dependent Claim
21 words
The seal mechanism of claim 12 further characterized in that said inner lips are connected to said upper and lower surfaces.
Claim 16
Dependent Claim
29 words
The seal mechanism of claim 11 further characterized in that said upper and lower channels are a semi-circular cross-sectional area as determined by a plane containing said axial axis.
Claim 17
Dependent Claim
194 words
A sealing mechanism having a general ring-like construction, described in relation to a vertical axis passing through an axial center of said sealing mechanism comprising: a. a vertically positioned inner side wall having an upper end and a lower end; b. an upper lip attached to the upper end of the inner side wall and a lower lip attached to the lower end of the inner side wall, said upper and lower lips protruding from said inner side wall in a radial direction towards said axis, said upper and lower lips comprising converging upper and lower faces which extend in a radial direction towards said axis and meet at a side face which is vertically positioned; c. an upper surface connected to the upper face of said upper lip and extending radially from said upper face away from said axis; d. an upper channel located in said upper surface; e. a lower surface connected to the lower face of the lower lip and extending radially from said lower face away from said axis; f. a lower channel located in said lower surface; and g. an outer side wall connecting said upper and lower surfaces.
Claim 18
Dependent Claim
194 words
A sealing mechanism having a general ring-like construction, described in relation to a vertical axis passing through an axial center of said sealing mechanism comprising: a. a vertically positioned inner side wall having an upper end and a lower end; b. an upper lip attached to the upper end of the inner side wall and a lower lip attached to the lower end of the inner side wall, said upper and lower lips protruding from said inner side wall in a radial direction towards said axis, said upper and lower lips comprising converging upper and lower faces which extend in a radial direction towards said axis and meet at a side face which is vertically positioned; c. an upper surface connected to the upper face of said upper lip and extending radially from said upper face away from said axis; d. an upper channel located in said upper surface; e. a lower surface connected to the lower face of the lower lip and extending radially from said lower face away from said axis; f. a lower channel located in said lower surface; and g. an outer side wall connecting said upper and lower surfaces.
Claim 19
Dependent Claim
25 words
The seal mechanism of claim 15 further characterized in that said outer side wall contains two outer lips which protrude radially away from said axis.
Claim 20
Dependent Claim
21 words
The seal mechanism of claim 16 further characterized in that said outer lips are connected to said upper and lower surfaces.
Claim 21
Dependent Claim
29 words
The seal mechanism of claim 15 further characterized in that said upper and lower channels are a semi-circular cross-sectional area as determined by a plane containing said axial axis.
References Cited (Backward Citations)
US1770193A
Cited
FR1185726A
Cited
US3215441A
Cited
US3158376A
Cited
US3550990A
Cited
US3612551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |