1. A razor blade comprising a blade edge coated with an isostatically-pressed polymeric material.
2. The razor blade of claim 1 wherein said polymeric material comprises a fluoropolymer.
3. The razor blade of claim 1 wherein said isostatically-pressed coating is formed by a hot isostatic press (HIP) or a cold isostatic press (CIP).
4. The razor blade of claim 1 wherein said isostatically-pressed coating ranges in thickness from about 10 nm to about 100 nm, has a substantially uniform surface morphology, and has substantially zero porosity.
5. The razor blade of claim 3 wherein said HIP further comprises a temperature in the range of about 300\xb0 C. to about 380\xb0 C., a pressure range of about 10 MPa to about 550 MPa, an inert atmosphere of argon or nitrogen, and wherein said HIP is applied for a time ranging from about 10 minutes to about 10 hours.
6. The razor blade of claim 3 wherein said HIP is applied to said polymer coating after said polymer coating has been sintered.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A fluid pressure cylinder assembly for a work machine comprising a tubular cylinder, a base connected to one end of the tubular cylinder, a piston rod assembly comprising a piston rod and a piston secured to the rod, the piston being slidably mounted on an interior of said tubular cylinder, a sensor comprising a sensor sleeve and a sensor core mounted in the cylinder, said sensor sleeve being secured to the base and extending into a longitudinal bore in the piston rod, the sensor core carried by the piston rod in the piston rod bore and secured to the piston rod at an end of the bore remote from the piston, said sensor core slidably fitting on an interior of said sensor sleeve, a circuit board housing mounted in a bore in the base, said circuit board housing having an opening on a side thereof oriented to be aligned with a lateral connector bore in the base, and a connector extending through the connector bore in the base and having an end that extends through the opening on the side of the circuit board housing, said connector having contacts on an end that enters the circuit board housing to contact terminals on the circuit board in the circuit board housing.
2. The fluid pressure cylinder assembly in claim 1, the opening on the side of the circuit board housing having a plurality of corners, wherein the connector has a shank that has complementary corners such that the shank fits into the opening on the side of the circuit board housing only in a plurality of distinct positions.
3. The fluid pressure cylinder assembly in claim 2, wherein the opening on the side of the circuit board housing has four corners, and the connector is positionable in four different rotational positions.
4. The fluid pressure cylinder assembly in claim 3, wherein the four corners form a square shape wherein a diagonal line through two of the corners lie along a plane passing through the longitudinal axis of the cylinder assembly.
5. A fluid pressure cylinder assembly comprising a tubular cylinder, a base fixed to one end of the tubular cylinder, a piston rod assembly comprising a piston rod and a piston secured to the rod, the piston being slidably mounted on an interior of said tubular cylinder, the piston rod having a longitudinal bore extending from an end of the piston rod adjacent the piston to a remote bore end, a sensor comprising a sensor sleeve mounted in the cylinder, said sensor sleeve secured relative to a circuit housing secured within a bore in the base and extending into the longitudinal bore in the piston rod, a sensor core secured to the piston rod at the remote bore end of the longitudinal bore in the piston rod, said sensor core slidably fitting on an interior of said sensor sleeve and extending for a selected length along the sensor sleeve, electrical connections in the circuit housing connected to the sensor sleeve, an opening in a side of the circuit housing, and a cross bore open from an exterior of said base to said bore in the base, electrical contacts forming part of the electrical connections on an interior of the circuit housing and accessible from an exterior of said circuit housing through the opening in the side of the circuit housing, and a connector in the cross bore extending through the opening in the side of the circuit housing, for engaging the electrical contacts to connect the sensor sleeve to external sensor circuitry to sense the relative positions of the sensor sleeve and sensor core.
6. The fluid pressure cylinder assembly of claim 5, wherein said circuitry in said circuit housing comprises a circuit board having the electrical contacts thereon.
7. The fluid pressure cylinder assembly of claim 6, wherein said circuit board electrical contacts are in alignment with and facing the opening in the side of the circuit housing.
8. The fluid pressure cylinder assembly of claim 5, wherein the connector in the cross bore extends through the opening in the side of the circuit housing and has electrical contacts on an end engaging the electrical contacts on the circuit board in the circuit housing
9. The fluid pressure cylinder assembly of claim 5, wherein the longitudinal bore in said piston rod has an internal annular taper expanding outwardly from the longitudinal bore at the end thereof adjacent the piston.
10. A sensor assembly for a fluid pressure cylinder having an outer cylinder, a piston and piston rod assembly slidably mounted in the outer cylinder, the piston rod having a longitudinally extending piston rod bore therein extending from an end of the piston rod adjacent the piston to a remote end of the piston rod, a sensor sleeve slidably mounted in the piston rod bore and secured to a base of the outer cylinder, a sensor core secured to a remote end of the piston rod bore and extending into the sensor sleeve, the sensor sleeve being secured relative to the base, sensor circuitry positioned in a bore in the base and connected to the sensor sleeve, and a connector extending into the bore in the base and connected to the sensor circuitry.
11. The sensor assembly of claim 10, the sensor circuitry comprising a circuit board having contacts thereon, a circuit board housing supporting the circuit board, the circuit board housing having an opening in a side thereof with the contacts aligned with the opening for access to the contacts on the circuit board.
12. The sensor assembly of claim 11, wherein the bore in the base is an axial bore centered on the piston rod, the circuit board housing being located in the axial bore in the base, a cross bore in the base intersecting the axial bore, the opening in the cylinder housing aligning with the cross bore, and the connector being mounted in the cross bore with connector contacts engaging contacts on the circuit board, the connector having an end on the exterior of the base, the circuit board housing being completely within the axial bore in the base with no part of the circuit board housing extending into the outer cylinder.
13. The sensor assembly of claim 12, wherein the opening in the circuit board housing is provided with corners, the connector in the cross bore having a shank configured to mate with the corners of the circuit board housing opening in a plurality of different positions about the axis of the cross bore, the contacts of the connector engaging contacts on the circuit board in each of the plurality of positions.
14. A sensor assembly for a standard hydraulic cylinder assembly having a base, and a piston carrying a piston rod that is extendable and retractable relative to the base, said base having a first pin aperture for mounting the base to a support, and the rod having an external rod end connector, a second pin aperture in the rod end connector for connecting to a member, said standard cylinder having a pin to pin dimension between the pin apertures, the improvement comprising a longitudinal uniform diameter bore in the piston rod from an end of the piston rod adjacent to the piston, the longitudinal bore having a remote end adjacent the rod end connector of the piston rod, a sensor sleeve secured to the base and extending into the longitudinal bore in the piston rod, a sensor core positioned in the longitudinal bore and secured at the remote end of the longitudinal bore, said sensor core being slidable on the interior of the sensor sleeve, a circuit connection from the sensor sleeve through the base to an exterior of the base, the sensor sleeve and sensor core being positioned such that the pin to pin dimension with the piston in a retracted position and with the piston in an extended position is not altered by the mounting of the sensor sleeve and sensor core.
15. The sensor assembly of claim 14, wherein the circuit connector from the sensor sleeve comprises a housing mounted entirely within a bore in the base, the bore in the base having an axis aligned with a longitudinal axis of the piston rod.
16. A method of mounting a sensor for sensing position of a piston rod of a fluid pressure cylinder assembly for a work machine relative to a cylinder based wherein the fluid pressure cylinder assembly comprises a tubular cylinder, a base connected to one end of the tubular cylinder, a piston rod assembly comprising a piston rod and a piston secured to the rod, and the piston being slidably mounted on an interior of said tubular cylinder, the method comprising providing a sensor having sensor parts comprising a sensor sleeve and a sensor core slidably fitting into the sensor sleeve, extending the sensor sleeve into a longitudinal bore in the piston rod, slidably fitting the sensor core into an interior of the sensor sleeve, mounting the sensor sleeve to one of the piston rod and base and mounting the sensor sleeve to the other of the piston rod and base, mounting a circuit board housing in an axial bore in the base and providing an opening on a side of the circuit board housing oriented to be aligned with a provided lateral connector bore in the base, providing electrical contact terminals on the circuit board and connecting the electrical connects to the sensor part mounted to the base, extending a connector having connector contacts on an end through the connector bore in the base and through the opening on the side of the circuit board housing, and engaging the connector contacts with the contact terminals on the circuit board in the circuit board housing.
17. The method of claim 16 comprising forming the opening on the side of the circuit board housing with a plurality of corners, and providing the connector with complementary corners, and fitting the connector into the opening on the side of the circuit board housing in one of a plurality of distinct positions defined by the corners.
18. The method of claim 17 including forming the opening with four corners in a square shape and positioning the circuit board housing in the bore with a diagonal line through two of the corners lying on a plane passing through a longitudinal axis of the cylinder.
19. The method of claim 18 including the step of providing a standard hydraulic cylinder assembly having a first pin aperture in the base for mounting the base to a support, and the rod having a rod end connector external of the tubular cylinder, a second pin aperture in the rod end connector for connecting to a member, said standard hydraulic cylinder having a pin to pin dimension between the pin apertures, and mounting the circuit board housing, the sensor sleeve and sensor core in the axial bore of the base and in the piston rod bore such that the first dimension between the first and second pin apertures with the piston in a retracted position and with the piston in an extended position is not altered by the mounting of the sensor sleeve and sensor core.