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A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
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| Number | Title | Issue Date |
| 7516691 | Hydraulic linear drive, particularly a hydraulic transmission actuator A hydraulic linear drive, particularly a hydraulic transmission actuator, having a piston/cylinder unit, in which an actuating piston longitudinally displaceably arranged in the cylinder housing divided into at least two pressure chambers which can be acted upon by ... | 04/14/2009 |
| 7421939 | Combination of a chamber and a piston, a pump, a motor, a shock absorber and a transducer incorporating the combination A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall and comprising an elastically deformable piston comprising a container in said chamber to be sealingly movable relative to said chamber at least between first and s... | 09/09/2008 |
| 7024866 | Axial loaded seal system with a static L-seal A piston includes a circumferential groove having a dynamic split seal ring having a flat axially facing surface, a static seal ring having a flat axially facing surface abutting the flat surface of the dynamic seal ring, and a spring mounted within the groove. The ... | 04/11/2006 |
| 5588350 | Manufacture of banded pistons A banded cylindrical piston for use in fluid cylinders is produced by hot-forming a relatively thin, flat washer made of polytetrafluoroethylene (PTFE) onto a grooved piston. A hot-forming sizing tube has a beveled entrance end on which the washer is init... | 12/31/1996 |
| 5435233 | Banded piston A piston for use in a hydraulic cylinder which is subject to sudden and extremely high shock load pressures and high temperature operating conditions is provided with a plurality of interlocking axially-spaced circumferential grooves. A relatively thin, f... | 07/25/1995 |
| 5407332 | High suction intake wiper In a priming piston loading double acting pump for high viscosity materials, the shovel plate assembly is formed of a flexible, abrasion resistant disk or cup. The disk may be made from silicon rubber and the cup may be made from a glass filled Teflon pol... | 04/18/1995 |
| 5345860 | Banded piston and method of making A piston for use in a hydraulic cylinder which is subject to sudden and extremely high shock load pressures and high temperature operating conditions is provided with a plurality of interlocking axially-spaced circumferential grooves. A band of a heat-for... | 09/13/1994 |
| 5113747 | High pressure piston sealing system and method of its assembly The present invention relates to a high pressure piston sealing system. More particularly, the present invention relates to a sealing system adopted for rigorous marine applications which prevent or inhibit the use of a seal lubricant.... | 05/19/1992 |
| 4762052 | Piston It is a question of a multi-part piston more especially for use in double acting cylinder actuators. The piston has two piston halves that are mounted on a piston rod so as to be symmetrical about a contact surface between them. Each piston half has a met... | 08/09/1988 |
| 4581984 | Apparatus for measuring human respiration A lightweight and portable volumetric spirometer for measuring the volume of and rate of flow of air inhaled by human lungs. The device includes a movable piston within a first transparent cylindrical chamber provided with calibrated markings along its su... | 04/15/1986 |
| 4558630 | Hydraulic mechanism with elastically backed piston parts and cooperating valve means A hydraulic piston cylinder device comprising a cylinder, a piston dividing the cylinder into two cylinder spaces (A and B), and valve members between the cylinder spaces and respective pressure medium pipes. The problem is to achieve a hydraulic piston c... | 12/17/1985 |
| 4539895 | Sealing device A useful sealing device which serves to fluidtightly seal a clearance between a cylindrical member and a cylindrical bore into which said cylindrical member is to be fitted. The sealing device comprises an annular endless resilient seal ring made of a res... | 09/10/1985 |
| 4416441 | Blowout preventer Ram bodies mounted in transverse bores of a blowout preventer body with a longitudinal bore therethrough are operable by operating means extending through closures on one end of the transverse bores to move the rams to close off fluid communication throug... | 11/22/1983 |
| 4275641 | Hydraulic servo cylinder and piston A servo cylinder having a piston of the kind having spaced sections which move into an enlarged diameter low pressure bore portion of the cylinder is provided with a gasket assembly for each piston section in the form of an elastic sealing gasket having a... | 06/30/1981 |
| 4261251 | Kelly head for hydraulic mast digger A hydraulic mast digger has a kelly head with improved retaining and sealing features. The digger is of the type having a kelly with a bearing assembly mounted between the kelly and a bearing sleeve. The bearing sleeve is reciprocally carried in the hydra... | 04/14/1981 |
| 4203353 | Piston means for piston-cylinder arrangements A piston-cylinder arrangement comprising a cylinder member and piston means mounted slideably therein, the piston means comprising a piston member and a packing member mounted on the piston member for movement therewith, wherein said packing member has fi... | 05/20/1980 |
| 4185840 | Multilayer seal A multilayer seal comprising a stack of rings, some being made of elastomeric material and some being made of more rigid material, such as a metal. The elastomeric and rigid rings alternate in the axial direction of the stack, and the elastomeric rings ar... | 01/29/1980 |
| 4171665 | Piston, especially for a pneumatic cylinder A piston, especially for a pneumatic cylinder, includes a disc-shaped piston head and a sealing element on the head, such element has at least one annular sealing lip extending outwardly of the peripheral sliding surface of the head, the sealing lip being... | 10/23/1979 |
| 4143586 | Mud pump piston A mud pump piston comprising an annular elastomeric ring having an annular circumferential surface defining an acute angle circumferential tip of relatively small area which engages the pump cylinder wall and an annular anti-extrusion ring connected to an... | 03/13/1979 |
| 4088328 | O-Ring seal assembly for borehole pump assembly An o-ring seal assembly in combination with a downhole pump and an o-ring collar. The seal assembly includes a special o-ring device and two coacting seal holding members which cooperate together to provide an o-ring groove, and which separate to enable a... | 05/09/1978 |
| 4048909 | Piston ring A piston ring having a general shape of a cylinder with the first section in the shape of an annulus for engaging a portion of the surface of a piston to provide a fluid-tight seal with the piston and a second section in the shape of a thin-walled bowl wi... | 09/20/1977 |
| 4020750 | Piston pump mechanism A piston pump mechanism includes a plunger head slideably mounted within a cylindrical sleeve member. The plunger head has an upper portion forming a shoulder and a reduced lower portion around which an inner ring of resilient material is mounted. An oute... | 05/03/1977 |
| 3997085 | Caulking gun A caulking gun including a barrel having a dispensing tip on the outer end and a mechanism for releasably connecting the tip in sealing engagement with the outer end of the barrel. The barrel has a handle mounted on the inner end thereof with a trigger pi... | 12/14/1976 |
| 3958589 | Siphon A simply constructed and inexpensive syphon for rapidly lifting liquid out of a container, the syphon consisting of a flexible plastic tube in which there is a spongy plastic piston attached to a flexible cord which extends out of one end of the tube so i... | 05/25/1976 |
