 Thermally insulated, fire resistant attic door |
| The present invention provides an improved, flame-resistant, thermal insulating door which may be ... |
|
| Domical-type structure |
| OF THE INVENTION The four basic structural units of the invention used in constructing the domical ... |
|
| Arrangement for mounting hinge pin sockets to cabinet doors |
| In the following detailed description, certain specific terminology will be utilized for the sake ... |
|
| Exterior window unit having adapter sill member |
| It is therefore an object of this invention to provide an improved exterior window unit wherein a ... |
|
| Thermal barrier threshold |
| The present invention comprises two basic parts, an extruded aluminum shape or base plate and a ... |
|
| Abrasive grinding machine |
| The invention is therefore directed to an abrasive grinding machine specifically intended for the ... |
|
| Total environment photographic mount and photograph |
| The present invention consists of a total environment photographic camera mount, mounted upon a ... |
|
| Unitary chassis for television receivers with two circuit boards and method of manufacture |
| OF THE PREFERRED EMBODIMENT Referring to the drawings and particularly FIGS. 1 to 4, a television ... |
|
| Segmented curved screen construction for preserving a predefined curvature |
| We claim: 1. A segmented curved screen for an image projection system which maintains a predefined ... |
|
| Thermoplastic resin composition |
| OF THE INVENTION The polyphenylene ether used in the component (a) in the present invention is a ... |
|
|
Water hammer shock absorber
| Details |
Inventors: Muroi, Sankichi;
Assignee: Tozen Sangyo Co., Ltd. (Tokyo, JP)
Primary Examiner: Aegerter; Richard E.
Assistant Examiner: Bryant, III; James E.
Attorney, Agent or Firm: Watts, Hoffmann, Fisher & Heinke Co.
A water hammer shock absorber comprising a casing provided on both side walls thereof with a hole and innerside thereof with a cavity adapted to have a pressurized gas sealed therein, a pipe having number of small perforations defined on the peripheral wall thereof between said hole of the casing, and an elastic tube covering the periphery of said pipe being fitted thereto in a watertight fashion. |
|
DETAILED DESCRIPTION An object of the present invention is to provide a water hammer shock absorber which is capable of eliminating all the drawbacks inherent to the conventional shock absorber as above-mentioned and installing thereof at a very low cost as a whole because of simplicity of its construction as well as installation thereof.
Another object of the present invention is to provide a water hammer shock absorber which comprises a casing provided on both side walls thereof with a hole and innerside thereof with a cavity adapted to have a pressurized gas sealed therein, a pipe having a number of small perforations defined on the peripheral wall thereof between said holes of the casing, and an elastic tube covering the peripheral wall of said pipe being fitted thereto in a watertight fashion, and wherein, on occurrence of water hammer within the fluid piping, the pressure waves effected thereby run out through the small perforations toward within the elastic tube covering the pipe in order to stay therein temporally and thereafter said pressure waves become to be automatically absorbed by means of balancing the force of the pressure waves with the sum of elasticity of the tube and the pressing force effected by the pressurized gas surrounding the tube.
Therefore, in comparison with the conventional one, said water hammer shock absorber is very far superior in the economical aspect, since it has a very simple construction that invites not only easiness in manufacturing thereof but also simplicity in incorporating thereof with piping arrangement, besides it requires neither specific handling nor particular maintenance, and, in addition, it can serve as a pipe joint itself, also.
Still another object of the present invention is to provide a water hammer shock absorber, wherein the section of said small perforations defined on the periphery of the pipe is the largest in the central portion of the pipe and becomes smaller and smaller successively as it comes apart from the central portion toward both ends of the pipe in order that the tube is deformed by the pressure waves in a smooth convex shape without any strain so as to let the operational life of the tube last longer
|
| Related patents |
|
|
Pulse damper
I claim: 1. In a liquid chromatography system comprising a reciprocating pump, a chromatographic column, a flow line connecting said pump to said column for delivering ...
|
|
|
Hydraulic slide valve
I claim: 1. A hydraulic control valve, comprising, a housing having a cylindrically shaped bore, said housing having pump and tank connections and two servomotor load ...
|
|
|
Hydroblasting spray gun having an on/off safety switch system
The present invention is an improved hydroblasting spray gun having a base frame, a first actuatable trigger, a second actuatable trigger, an actuator housing in ...
|
|
|
Balanced airflow control valve for helicopter blade
Briefly, the present invention is a valve for a CCR blade which extends the length of the blade. The closure element is a U-shaped member that is spring biased to a ...
|
|
|
Gas valve
The present invention provides attachment of an elastomeric poppet to a bi-metal actuator arm in an electrically operated thermally actuated gasous fuel valve in such a ...
|
|
|
Mechanically actuated slot for circulation control rotor
The valving device controlling air flow distribution to the rotor blades in a circulation control rotor is relatively complex and as a result impacts reliability. In ...
|
|
|
Thermally actuated valve with ambient temperature compensation
The present invention employs a resilient poppet mounted on the end of a cantilevered bimetal blade arm which is spring biased to close the poppet against an annular ...
|
|
|
Pressurized modular system for space applications
OF THE PREFERRED EMBODIMENTS Referring now to FIG. 1, a modular system 8 in accordance with the invention includes at least one interchangeable circular cylinder body ...
|
|
|
Method and apparatus for controlling the mixing of two fluids
According to a broad aspect of the present invention, there is provided a method of controlling the mixing of two fluids of the same state or of substantially the same ...
|
|
|
Piezoelectric low-pressure fuel injector
The general object of the present invention is to eliminate the aforementioned disadvantages. The primary object of the present invention is to provide a piezoelectric ...
|
|
|
Gutter-related 
