GB1336995A - Seals - Google Patents
SealsInfo
- Publication number
- GB1336995A GB1336995A GB1336995DA GB1336995A GB 1336995 A GB1336995 A GB 1336995A GB 1336995D A GB1336995D A GB 1336995DA GB 1336995 A GB1336995 A GB 1336995A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cellular
- piston
- seal
- tubes
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
- F16J10/02—Cylinders designed to receive moving pistons or plungers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/06—Bellows pistons
Abstract
1336995 Fluid operated actuators; hydraulic accumulators A JOHNSTON 28 July 1971 [ 5 May 1970] 21577/70 Headings F1D and F1P [Also in Division F2] A cellular elastomeric body (Div. F2) is used between relatively reciprocable members and acts as both a seal and a return spring, the body being impervious to fluid. A remote control hydraulic actuator system, Fig. 6, includes cellular bodies 77, 78 in the master and slave units 68, 70. As applied to a hydraulic accumulator, Fig. 7, one end of the cellular body 84 is attached to the end of the cylinder while the other end is attached to the piston to form a stretchable bag sealing the air space 83 from the oil space 82. In Figs. 8A and 8B (not shown), a hydraulic ram comprises three telescopic tubes; cellular bodies (93, 94) between the tubes serve to seal the joints and tend to collapse the ram from its extended position. In a pneumatic actuator, Figs. 9A and 9B (not shown), a cellular body (99) provided between the piston (96) and the end of the cylinder through which the piston rod passes is of a hollow truncated conical shape such that the area of contact of the body with the piston increases as the body is compressed by the piston; alternatively, the cellular body may be dome-shaped or stepped to afford different compressibility characteristics and the bore which surrounds the piston rod may be conical or cylindrical so that it engages the piston rod along part or all of its length. A pneumatic ram may consist of three telescopic tubes 115, 116, 117, Fig. 11, or two tubes, Figs. 10A and 10B (not shown), extended by air pressure and contracted by the cellular seal body 118 which is bonded at 119 and 120 and possibly bonded at 121.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2157770 | 1971-07-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1336995A true GB1336995A (en) | 1973-11-14 |
Family
ID=10165260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1336995D Expired GB1336995A (en) | 1971-07-28 | 1971-07-28 | Seals |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1336995A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2847961A1 (en) * | 2002-12-03 | 2004-06-04 | Peugeot Citroen Automobiles Sa | Sealing system for compressing piston comprises sealing ring with T-shaped cross-section which fits around piston rod and carries second ring with lip fitting against piston |
EP2444667A1 (en) * | 2010-10-25 | 2012-04-25 | Hamilton Sundstrand Corporation | Bootstrap accumulator system with telescoping actuator cylinder |
US8349963B2 (en) | 2007-10-16 | 2013-01-08 | Kimberly-Clark Worldwide, Inc. | Crosslinked elastic material formed from a linear block copolymer |
-
1971
- 1971-07-28 GB GB1336995D patent/GB1336995A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2847961A1 (en) * | 2002-12-03 | 2004-06-04 | Peugeot Citroen Automobiles Sa | Sealing system for compressing piston comprises sealing ring with T-shaped cross-section which fits around piston rod and carries second ring with lip fitting against piston |
US8349963B2 (en) | 2007-10-16 | 2013-01-08 | Kimberly-Clark Worldwide, Inc. | Crosslinked elastic material formed from a linear block copolymer |
EP2444667A1 (en) * | 2010-10-25 | 2012-04-25 | Hamilton Sundstrand Corporation | Bootstrap accumulator system with telescoping actuator cylinder |
US9127661B2 (en) | 2010-10-25 | 2015-09-08 | Hamilton Sundstrand Corporation | Bootstrap accumulator system with telescoping actuator cylinder |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |