 Fixed point and floating point computation units using commonly shared control fields |
| What is claimed is: 1. In a data processing system requiring fixed point and floating point ... |
|
| Optical matrix multiplier |
| What is claimed is: 1. An optical system for performing matrix manipulations, comprising: a source ... |
|
| Data processing system having an instruction pipeline for processing a transfer instruction |
| It is an object of the present invention to execute instructions at a high speed, and more ... |
|
| Processor |
| What is claimed is: 1. A processor comprising: a central processing unit (CPU), a local memory and ... |
|
| Microprogram splatter return apparatus |
| In accordance with the above and other objects of the invention, a predetermined bit position of a ... |
|
| Data processing system with error checking |
| According to the present invention, there is provided a data processing system comprising: a ... |
|
| Effective digit capacity modification means for integrated circuit calculators |
| OF THE INVENTION Referring now to FIG. 1, there is illustrated one preferred form of the present ... |
|
| Apparatus for matching FET switches as for a video digital-to-analog converter |
| What is claimed is: 1. Apparatus for converting binary digital values, each consisting of a ... |
|
| Arithmetic logic circuit having a carry generator |
| What is claimed is: 1. An arithmetic logic circuit comprising a first carry generator, said carry ... |
|
| Digital signal processing apparatus for a blood flowmeter using ultrasound Doppler effect |
| According to the invention, a digital signal processing apparatus of a simplified construction is ... |
|
|
Blowdown fitting
| Details |
Inventors: Cooper, Jack M.;
Assignee: General Screw Products Company (Houston, TX)
Primary Examiner: Brown; David H.
Assistant Examiner: Griffiths, Jr.; John E.
Attorney, Agent or Firm: Carwell & Helmreich
An improved grease fitting of the type generally referred to as a blowdown fitting is provided, including a plurality of sealing means which enables lubricant to be safely injected into the lubricant supply system. An upper body is rotatable with respect to the main body, and pressure may be vented through a cap threaded to the upper body. A stinger assembly is rotatable with respect to both main body and the upper body, which enhances the life of the seal between the stinger and the main body. A sealing ball is provided between the stinger assembly and the cone, and is biased toward its seating surface by a spring adapted to enable a lubricant/polyester plasticizer mixture to pass through the fitting. |
|
DETAILED DESCRIPTION In an exemplary embodiment of the present invention, a blowdown grease fitting is provided comprising a main body, an upper body, and a vent cap.
The passageway in the main body is adapted to receive a stinger assembly, a cone, and a ball and spring between the stinger assembly and the cone.
The stinger assembly is loosely retained by the upper body, and is axially movable and freely rotatable with respect to the upper body.
As the upper body is threaded to the main body, the stinger assembly moves axially until a cone-shaped portion of the stinger assembly seals with the seating surface of the main body.
Since the stinger assembly is rotatable with respect to the body, however, the cone-shaped portion need not rotate with respect to the seating surface as the seal is made, which prolongs the life of the metal-to-metal seal between the cone-shaped member and the seating surface.
The end of the fitting may be threaded for engagement with the general assembly to be lubricated, and the cone may be adapted for sealing engagement with a seating surface of the general assembly.
The cone is retained within the main fitting body by a relatively thick lip, and the cone is also rotatable with respect to the main body.
A ball and spring are provided in a portion of the passageway of the main body between the stinger and the cone.
The ball is adapted for engagement with a seat in the main body.
The spring biases the ball towards the seat in the main body, and a leg of the spring engages the ball at a point along the axis of the passageway.
The length of the leg is sufficient to engage the adjacent coil of the spring, so that the tip of the leg of the spring will not bend beyond the point of the adjacent coil of the spring.
The end of the spring in contact with the ball has a leg portion which passes through the central axis of the fitting.
When desired, additional lubricant may be supplied to the general assembly through the fitting in the following manner.
The grease gun may be attached to the end of the fitting protruding through the device
|
|
CPUs 
