 Fluid free damper |
| The present invention provides a fluid free damper which provides either a substantially constant ... |
|
| Vibration isolation grommet |
| The aforesaid problems are solved by a grommet, in accordance with a constructed embodiment of the ... |
|
| Method for restraining vibration of a building and structure therefor |
| The present invention is directed to a method and a structure for restraining a vibration of the ... |
|
| Thermoplastic cover for stadium seating, picnic tables, boat docks and the like |
| OF THE PREFERRED EMBODIMENT As indicated in FIG. 1, a bleacher, generally designated 10, is ... |
|
| Coupling formation for the interfitting of structural elements |
| I claim: 1. In an assembly of structural elements detachably interconnected by means of ... |
|
| Auxiliary support mechanism for an automotive hoist |
| I claim: 1. An auxiliary support mechanism for a piston actuated automotive hoist, wherein the ... |
|
| Panel for constituting sound insulating wall |
| I claim: 1. A panel for constituting sound insulating wall, comprising: a front plate, a rear plate,... |
|
| Bed apparatus with urinal and an integral drive mechanism |
| It is an object of the present invention to provide a bed apparatus with a urinal which can ... |
|
| Lifting apparatus for dockboard |
| The dockboard lifting apparatus of the present invention comprises a minimal number of moving parts ... |
|
| Thermal insulation structure |
| It is, accordingly, the object of the present invention to provide an improved structure for ... |
|
|
Acceleration sensitive compression head
| Details |
Inventors: Zavodny, Eugene N.;
Assignee: Maremont Corporation (Carol Stream, IL)
Primary Examiner: Reger; Duane A.
Assistant Examiner:
Attorney, Agent or Firm: Allegretti, Newitt, Witcoff & McAndrews
An acceleration sensitive automotive shock absorber includes an improved compression head assembly. Within a cup inside the head, a biased mass slides relative to a pin joined to the cup, to open a unique path of fluid flow during accelerating compression of the shock absorber. |
|
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG.
1, the preferred embodiment of the invention is, in a principal aspect, an acceleration sensitive shock absorber 10.
A piston rod 12 of the shock absorber 10 is slidably mounted within an inner tube or cylinder member 14, and has a piston valving assembly 16 mounted on its lower end.
The assembly 16 regulates flow of a hydraulic fluid across the assembly 16 between a compression chamber 18 and a rebound chamber 20.
The chambers 18, 20 are variable in volume, and so vary with movement of the piston rod 12.
The chamber 18 is defined by the lower surfaces of the piston valving assembly 16, the inner walls of the inner tube 14 and the top surfaces of a compression head assembly 22.
The rebound chamber 20 is defined by the top surfaces of the piston valving assembly 16, the outer surface of the piston rod 12, the inner walls of the inner tube 14 and a seal assembly 24.
As the piston rod 12 moves downward or the cylinder 14 upward, during a compression stroke, the compression chamber 18 decreases in volume, while the rebound chamber 20 increases in volume, at a lower rate of change.
Hydraulic fluid flows, in part, from the compression chamber 18 into the rebound chamber 20.
On return of the piston rod 12, during a recoil stroke, the flow pattern is reversed.
As the shock absorber 10 is depicted in FIG.
1, the piston rod 12 is bottomed in the cylinder 14, the compression chamber 18 is at a minimum volume, and the rebound chamber 20 is at maximum volume.
Also as shown in FIG.
1, the seal assembly 24 caps the upper end of the cylinder 14, while the compression head assembly 22 caps the lower end.
An intermediate tube or cylinder 26, a lower end cap 28 and a lower mounting connector (not shown) complete the shock absorber 10.
The intermediate tube 26 surrounds the inner tube 14.
Along with the tube 26, the end cap 28 and the seal assembly 24, the intermediate tube 26 defines a fixed volume reservoir chamber 30.
The chamber 30 is filled, in part, with a compressible gas and in part, with hydraulic fluid
|
| Related patents |
|
|
Modular building systems
One object of the invention is to provide an improved building module which acts as a functional container responding to the users' functional requirements, which module ...
|
|
|
Multiple-span bridge support system for vehicles with high braking forces
OF THE INVENTION The superstructure of a bridge support system, embodying the present invention, includes a row of end-to-end single-span pre-stressed concrete girders ...
|
|
|
Power distribution system
OF THE INVENTION The power delivery system generally includes a transformer module 12 and a feeder module 14. The transformer module 12 includes a transformer 16, ...
|
|
|
Composite preset block for underfloor wire distribution systems
Briefly described, the present invention provides a method and low cost means for adapting a poured concrete floor for connection of outlet boxes as desired. The ...
|
|
|
High strength corrugated metal plate and method of fabricating same
The present invention seeks to overcome the above-discussed shortcomings of the prior art by providing as a structural building element a prefabricated, corrugated plate ...
|
|
|
Prefabricated polygonal building
I claim: 1. In a polygonal prefabricated building supported on a supporting surface and symmetrical about a vertical central axis, the building having upright columns ...
|
|
|
Pipe support systems
The embodiments of the invention in which an exclusive property or privelege is claimed are defined as follows: 1. A pipe support comprising a. a pipe shoe for ...
|
|
|
Information transmission device through the rails between a railway track and a vehicle assembly circulating on this track
We claim: 1. Apparatus for transmission of information through the rails between a railway track and a set of vehicles circulating in the same direction on that track in ...
|
|
|
Press roll for web material
We claim: 1. A press roll, for cooperating with an associated roll at a nip, to press web material between the press and associated rolls at the nip, the press roll ...
|
|
|
Machine tool, particularly band saw, with lightweight saw band carrier
The horizontal band saw of FIG. 1, collectively, has a machine base or frame 1 on which a saw band pulley carrier 3 is pivotably connected. A pivot bearing 2 connects ...
|
|
|
Vibration and Earthquake Isolation 
