1. A bicycle comprising:
front and rear wheels; and
a frameset supported by the wheels, the frameset comprising:
a main frame including a seat tube having a width;
a fork coupling the main frame to the front wheel,
a seatstay assembly including:
first and second seatstays positioned on opposing sides of the rear wheel and on opposing sides of the seat tube, wherein a front end of the first seatstay is spaced from a front end of the second seatstay by a distance greater that the width of the seat tube; and
a suspension mount detachably secured to the front end of the first seatstay; and
a suspension member pivotally coupled to the suspension mount.
2. A bicycle as claimed in claim 1, wherein the suspension mount comprises a first suspension mount, and wherein the seatstay assembly further includes a second suspension mount secured to the front end of the second seatstay.
3. A bicycle as claimed in claim 2, wherein the first and second suspension mounts are spaced from each other by a distance that is less than the width of the seat tube.
4. A bicycle as claimed in claim 2, further comprising a pivot shaft coupling the first and second suspension mounts to the suspension member.
5. A bicycle as claimed in claim 2, wherein a gap between the front end of the first seatstay and the second suspension mount is greater than the width of the seat tube.
6. A bicycle as claimed in claim 1, wherein the suspension mount comprises a first suspension mount, wherein the seatstay assembly further includes a second suspension mount, and wherein the first and second suspension mounts are formed as a single piece.
7. A bicycle as claimed in claim 1, wherein the first seatstay comprises a hollow tubular member.
8. A bicycle as claimed in claim 7, wherein the seatstay assembly further comprises an adapter positioned at least partially in the hollow tubular member, and wherein the suspension mount is detachably secured to the adapter.
9. A bicycle as claimed in claim 8, wherein the adapter comprises a threaded opening, and wherein the seatstay assembly further comprises a fastener inserted through a hole in the suspension mount and threaded into the threaded opening.
10. A bicycle as claimed in claim 8, wherein the adapter defines a recess having a non-circular cross section, and wherein the suspension mount includes a non-circular portion positioned in the recess.
11. A bicycle as claimed in claim 10, wherein the recess defines an oval cross section, and wherein the non-circular portion comprises an oval cross section that fits into the recess.
12. A bicycle comprising:
front and rear wheels; and
a frameset supported by the wheels, the frameset comprising:
a main frame including a seat tube having a width;
a fork coupling the main frame to the front wheel,
a seatstay assembly including:
first and second seatstays positioned on opposing sides of the rear wheel, wherein a front end of the first seatstay is spaced from a front end of the second seatstay by a distance greater that the width of the seat tube, and wherein the seat tube is positioned at least partially between the first and second seatstays; and
a suspension mount detachably secured to the front end of the first seatstay; and
a suspension member pivotally coupled to the suspension mount.
13. A bicycle as claimed in claim 12, wherein the suspension mount comprises a first suspension mount, and wherein the seatstay assembly further includes a second suspension mount secured to the front end of the second seatstay.
14. A bicycle as claimed in claim 13, wherein the first and second suspension mounts are spaced from each other by a distance that is less than the width of the seat tube.
15. A bicycle as claimed in claim 12, wherein the suspension mount comprises a first suspension mount, wherein the seatstay assembly further includes a second suspension mount, and wherein the first and second suspension mounts are formed as a single piece.
16. A bicycle as claimed in claim 12, wherein the first seatstay comprises a hollow tubular member.
17. A bicycle as claimed in claim 16, wherein the seatstay assembly further comprises an adapter positioned at least partially in the hollow tubular member, and wherein the suspension mount is detachably secured to the adapter.
18. A bicycle as claimed in claim 17, wherein the adapter comprises a threaded opening, and wherein the seatstay assembly further comprises a fastener inserted through a hole in the suspension mount and threaded into the threaded opening.
19. A bicycle comprising:
front and rear wheels; and
a frameset supported by the wheels, the frameset comprising:
a main frame including a seat tube having a width;
a fork coupling the main frame to the front wheel,
a seatstay assembly including:
first and second seatstays positioned on opposing sides of the rear wheel and on opposing sides of the seat tube, wherein a front end of the first seatstay is spaced from a front end of the second seatstay by a distance greater that the width of the seat tube;
a first suspension mount detachably secured to the front end of the first seatstay; and
a second suspension mount secured to the front end of the second seatstay, the first and second suspension mounts spaced from each other by a distance that is less than the width of the seat tube; and
a suspension member pivotally coupled to the suspension mount,
wherein the front end of the second seatstay is closer to the suspension member than the front end of the first seatstay.
20. A bicycle as claimed in claim 19, wherein a length of the first suspension mount is greater than a length of the second suspension mount.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
I Claim:
1. A pressure control actuator, comprising:
a housing forming a supply port, a control port, and an exhaust port;
a valve seat insert established within the housing, the control port being in fluid communication with the valve seat insert, the exhaust port and the supply port being formed on opposite sides of the valve seat insert from each other;
a poppet slidably disposed within the housing; and
a check ball slidably disposed within the housing, the poppet and the check ball being movable between a de-energized configuration wherein flow is prohibited between the supply port and the control port, prohibited between the exhaust port and the supply port, and permitted between the control port and the exhaust port, plural partially energized configurations wherein flow is permitted between the supply port and the control port, between the control port and the exhaust port, and between the exhaust port and the supply port, wherein incremental changes in the displacement of the poppet produce incremental changes in a control pressure, and a fully energized configuration wherein flow is prohibited between the control port and the exhaust port and flow is permitted between the supply port and the control port.
2. The actuator of claim 2, wherein the valve seat insert includes a central bore that is circumscribed by a poppet seat and a check ball seat, the poppet engaging the poppet seat to block fluid blow between the exhaust port and the control port, the check ball engaging the check ball seat to block fluid flow between the supply port and the control port and between the supply port and the exhaust port.
3. The actuator of claim 2, further comprising;
a frame, the housing extending from the frame;
a coil within the frame, the coil being energizable to move the actuator between the partially energized configurations and the fully energized configuration;
an armature slidably disposed within the coil, the armature defining a proximal end and a distal end, the distal end of the armature engaging the poppet;
a collar surrounding the distal end of the armature; and
a first diaphragm spring circumscribing the distal end of the armature adjacent to the collar, the first diaphragm spring biasing the actuator to the de-energized configuration.
4. The actuator of claim 3, further comprising:
a second diaphragm spring circumscribing the proximal end of the armature, the second diaphragm spring biasing the actuator to the de-energized configuration.
5. The actuator of claim 4, wherein the housing defines a distal end and the check ball is disposed within the housing adjacent to the distal end and the actuator further comprises:
a coil spring adjacent to the check ball; and
a spring retainer adjacent to the spring such that the spring is between the check ball and the spring retainer.
6. The actuator of claim 5, wherein spring retainers of varying thicknesses may be installed in the distal end of the housing to calibrate the actuator.
7. A pressure control actuator, comprising:
a housing forming a supply port, a control port, and an exhaust port;
a poppet slidably disposed within the housing; and
a check ball slidably disposed within the housing, the poppet and the check ball being movable between a de-energized configuration wherein flow is prohibited between the supply port and the control port, prohibited between the supply port and the exhaust port, and permitted between the control port and the exhaust port, plural partially energized configurations wherein flow is permitted between the supply port and the control port, between the control port and the exhaust port, and between the supply port and the exhaust port, wherein incremental changes in the displacement of the poppet produce incremental changes in a control pressure, and a fully energized configuration wherein flow is prohibited between the control port and the exhaust port and flow is permitted between the supply port and the control port.
8. The actuator of claim 7, further comprising;
a frame, the housing extending from the frame;
a coil within the frame, the coil being energizable to move the actuator between the partially energized configurations and the fully energized configuration;
an armature slidably disposed within the coil, the armature defining a proximal end and a distal end, the distal end of the armature engaging the poppet;
a collar surrounding the distal end of the armature; and
a first diaphragm spring circumscribing the distal end of the armature adjacent to the collar, the first diaphragm spring biasing the actuator to the de-energized configuration.
9. The actuator of claim 8, further comprising:
a second diaphragm spring circumscribing the proximal end of the armature, the second diaphragm spring biasing the actuator to the de-energized configuration.
10. The actuator of claim 9, wherein the housing defines a distal end and the check ball is disposed within the housing adjacent to the distal end and the actuator further comprises:
a coil spring adjacent to the check ball; and
a spring retainer adjacent to the spring such that the spring is between the check ball and the spring retainer.
11. The actuator of claim 10, wherein spring retainers of varying thicknesses may be installed in the distal end of the housing to calibrate the actuator.
12. A fluid control system, comprising:
a fluid supply;
a hydraulically controlled device;
a fluid exhaust; and
a pressure control actuator in fluid communication with the fluid supply, the hydraulically controlled device and the fluid exhaust, the actuator being movable between a de-energized configuration wherein flow is prohibited between the fluid supply and the hydraulically controlled device, prohibited between the fluid supply and the fluid exhaust and permitted between the hydraulically controlled device and the fluid exhaust, plural partially energized configurations wherein flow is permitted between the fluid supply and the hydraulically controlled device, between the hydraulically controlled device and the fluid exhaust, and between the fluid supply and the fluid exhaust and incremental changes in internal displacement of the actuator produce incremental changes in a control pressure, and a fully energized configuration wherein flow is prohibited between the hydraulically controlled device and the fluid exhaust and flow is permitted between the fluid supply and the hydraulically controlled device.
13. The system of claim 12, wherein the actuator comprises:
a housing forming a supply port in fluid communication with the fluid supply, a control port in fluid communication with the hydraulically controlled device, and an exhaust port in fluid communication with the fluid exhaust;
a valve seat insert established within the housing, the control port being in fluid communication with valve seat insert, the exhaust port and the supply port being formed on opposite sides of the valve seat insert from each other;
a poppet slidably disposed within the housing; and
a check ball slidably disposed within the housing, the poppet and the check ball being movable between a de-energized configuration wherein flow is prohibited between the supply port and the control port, prohibited between the exhaust port and the supply port, and permitted between the control port and the exhaust port, plural partially energized configurations wherein flow is permitted between the supply port and the control port, between the control port and the exhaust port, and between the exhaust port and the supply port, wherein incremental changes in the displacement of the poppet produce incremental changes in a control pressure, and a fully energized configuration wherein flow is prohibited between the control port and the exhaust port and flow is permitted between the supply port and the control port.
14. The actuator of claim 13, wherein the valve seat insert includes a central bore that is circumscribed by a poppet seat and a check ball seat, the poppet engaging the poppet seat to block fluid blow between the exhaust port and the control port, the check ball engaging the check ball seat to block fluid flow between the supply port and the control port and between the supply port and the exhaust port.
15. The actuator of claim 14, further comprising;
a frame, the housing extending from the frame;
a coil within the frame, the coil being energizable to move the actuator between the partially energized configurations and the fully energized configuration;
an armature slidably disposed within the coil, the armature defining a proximal end and a distal end, the distal end of the armature engaging the poppet;
a collar surrounding the distal end of the armature; and
a first diaphragm spring circumscribing the distal end of the armature adjacent to the collar, the first diaphragm spring biasing the actuator to the de-energized configuration.
16. The actuator of claim 15, further comprising:
a second diaphragm spring circumscribing the proximal end of the armature, the second diaphragm spring biasing the actuator to the de-energized configuration.
17. The actuator of claim 16, wherein the housing defines a distal end and the check ball is disposed within the housing adjacent to the distal end and the actuator further comprises:
a coil spring adjacent to the check ball; and
a spring retainer adjacent to the spring such that the spring is between the check ball and the spring retainer.
18. The actuator of claim 17, wherein spring retainers of varying thicknesses may be installed in the distal end of the housing to calibrate the actuator.
19. A pressure control actuator, comprising:
a housing forming a supply port, a control port, and an exhaust port; and
control means disposed within the housing, the control means being movable between a de-energized configuration wherein flow is prohibited to and from the supply port and permitted between the control port and the exhaust port, plural partially energized configurations wherein flow is permitted to and from the supply port, the control port and the exhaust port, wherein incremental changes in the displacement of the control means produce incremental changes in a control pressure, and a fully energized configuration wherein flow is prohibited to and from the exhaust port and permitted between the supply port and the control port.