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 Title: |
US5145378:
Pendulum principle demonstration apparatus
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Rott, Dainuri P.; Palo Alto, CA
Smith, James C.; Hayward, CA
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| Assignee: |
Hands on Instruments, Palo Alto, CA
other patents from HANDS ON INSTRUMENTS (685685) (approx. 1)
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| Published / Filed: |
1992-09-08
/ 1990-11-29
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| Application Number: |
US1990000620369
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| IPC Code: |
Advanced:
G09B 23/08;
Core:
G09B 23/00;
IPC-7:
G09B 23/08;
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| U.S. Class: |
Current:
434/302;
434/300;
Original:
434/302;
434/300;
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| Field of Search: |
434/300,302
033/391
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| Priority Number: |
| 1990-11-29 |
US1990000620369 |
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| Abstract: |
A base supports a vertical pivot arm, one end of which supports a pivotal rotation means for a rotation support housing with a plurality of radial connector sockets. One of several pendulum arms can be fitted into each of the radial connector sockets, the pendulum arms supporting a pendulous mass on each pendulum arm. One such pendulum arm is articulated into two portions, each portion with a plurality of additional pendulum arms attached thereto. The apparatus consequently demonstrates the physical principles of not just a simple pendulum, but those of a variety of compound pendulum configurations.
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| Attorney, Agent or Firm: |
Macro-Search, Inc. ;
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| Primary / Asst. Examiners: |
Apley, Richard J.; Richard, Karen Ann
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| Maintenance Status: |
E3 Expired Check current status
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 3 claims |
What is claimed is:
1. An apparatus for demonstrating the physical principle of the pendulum, comprising:
- a base for supporting a dynamical load, the base having a top surface;
- an elongated pivot arm vertically disposed and having a proximal and a distal ends, the proximal end rigidly mounted to said top surface, the distal end supporting a means for pivotal rotation about a horizontal axis;
- a rotation support housing having rotational mounting means for free rotation of said rotation support housing about the horizontal axis, in cooperation with said means for pivotal rotation, said rotation support housing having at least one radial connector socket therein; and
- a set of pendulum arms having various pendulous masses, lengths, and sizes, and having one or more portions with all sections jointed by pivots to a first portion to form an articulated arm; and
- said pendulum arms being inserted for interchangeable configuration assembly into said rotational support housing by attaching a first of each pendulum arm said first end having a connector plug for insertion into one said radial connector socket, whereby each configuration demonstrates a pendulous activity relating to the set of pendulums in use including the single, double, triple and quadruple compound pendulum.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 4 U.S. patent(s) that reference this one
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