Product testing system

• US 4,729,246 A
• Filed: 12/22/1986
• Issued: 03/08/1988
• Est. Priority Date: 12/22/1986
• Status: Expired due to Fees

• Current Assignee: Despatch Industries, Inc. (Illinois Tool Works Inc.)
• Original Assignee: Despatch Industries, Inc. (Illinois Tool Works Inc.)
• Inventors: Schafer, Wendell L., Melgaard, Hans L.
• Primary Examiner(s): Noland, Tom
• Application Number:
  US06/944,204
• Time in Patent Office: 442 Days
• Field of Search: 73/865.6, 374/57, 414/222, 414/223
• US Class Current: 73/865.6
• CPC Class Codes: G01M 99/002 Thermal testing flaw detection G01N25/72
• CPC Class Codes: G07C 3/00 Registering or indicating the condition or the working of machines or other apparatus, other than vehicles

Abstract

A product testing system comprises a housing with at least one opening therein, the housing having an internal, environmentally controlled chamber. Products to be tested are mounted to a product carrier. The latter is carried, in turn, by a product carrier transfer assembly. By means of the vehicle and transfer assembly, the product carrier may be oriented to be received within the housing opening with the products exposed to the environmentally controlled internal housing chamber. In one embodiment, the vehicle traverses a path adjacent one or more housings, and the product carrier transfer assembly rotates, elevates and laterally moves the product carrier to position it in an opening in the housing.

Claims

1. An apparatus for exposing products to selected environmental conditions comprising:

product carrier means for holding at least one product, housing means having an internal chamber and an opening open to said chamber to receive the product carrier means to locate the product in said chamber, means for controlling the environmental conditions in said chamber, said product being subjected to said environmental conditions when located in said chamber, a vehicle for transporting the product carrier means to and from said housing means, said vehicle having a transfer assembly adapted to be connected to the carrier means, first means for moving the transfer assembly in a generally upright direction, second means for rotating the transfer assembly about an upright axis, and third means for moving the transfer assembly laterally in a generally horizontal direction to selectively move the product carrier means into and out of said opening in the housing means, guide means secured to the housing means adjacent the opening therein, and guide engagement means on the transfer assembly engageable with the guide means to guide the transfer assembly along the guide means to locate the product carrier means in alignment with the opening.

2. The apparatus of claim 1 including lock means carried by the housing means to hold the product carrier on said housing means and retain the product in the chamber.

3. The apparatus of claim 2 wherein said lock means includes rod means rotatably mounted on said housing means adjacent said opening therein, arm means secured to the rod means engageable with said carrier means, and power means connected to said rod means operable to move said arm means into engagement with the carrier means to hold the carrier means on the housing means.

4. The apparatus of claim 1 wherein the means for controlling the environmental conditions in said chamber includes means controlling the temperature within said chamber.

5. The apparatus of claim 1 wherein said housing means includes upright wall means, said opening being located in said upright wall means, and wherein said guide means comprises upright rails secured to the wall means, said guide engagement means on the transfer assembly being engageable with said rails.

6. The apparatus of claim 5 wherein guide engagement means comprises roller means adapted to roll on said rails.

7. The apparatus of claim 1 including movable screen means extending across said opening, means resiliently mounting the screen means on the housing means, said screen means being movable into the chamber when the carrier means is inserted into the opening.

8. The apparatus of claim 1 wherein said carrier means includes a plug assembly sized to fit into said opening and a frame projecting outwardly of the plug assembly adapted to engage said housing means, said lock means being engageable with said frame to hold the frame against the housing means.

9. The apparatus of claim 1 including track means located adjacent said housing means and defining a path for said vehicle and means on said vehicle engageable with the track means for guiding the vehicle relative to the track means in said path.

10. The apparatus of claim 1 particularly adapted for testing of an electronically operable product and including means for connecting an electric power supply to said product to monitor electronic operation of the product when exposed to said selected environmental conditions.

11. An apparatus for exposing products to selected environmental conditions comprising carrier means for holding at least one product, housing means having an internal chamber and an opening open to said chamber and adapted to releasably receive through the opening the product carrier means and locate the product in said chamber, means for controlling environmental conditions in said chamber, said product being subjected to said environmental conditions, and lock means engageable with said carrier means to hold the carrier means on said housing means and retain the product in said chamber.

12. The apparaus of claim 11 wherein said housing means includes upright wall means, said opening being located in said upright wall means.

13. The apparatus of claim 11 wherein the means for controlling the environmental conditions in said chamber includes means operble to control the temperature of air in said chamber.

14. The apparatus of claim 11 wherein said carrier means includes a plug assembly sized to fit into said opening, and a frame projecting outwardly of the plug assembly adapted to engage said housing means, said lock means being engageable with said frame to hold the carrier means on said housing means.

15. The apparatus of claim 11 including movable screen means extending across said opening, means mounting the screen means on the housing means, said screen means being moved into the chamber when the carrier means is inserted into the opening.

16. An apparatus for exposing products to selected environmental conditions comprising product carrier means for holding at least one product, housing means having an internal chamber and an opening open to said chamber to receive through said opening the product carrier and to locate product in the chamber, chamber including screen means extending across and closing the opening, and mounting means mounting the screen to the chamber and allowing the screen to be displaced inwardly of the chamber as the product carrier is received in the opening.

17. An apparatus for exposing products to selected environmental conditions comprising carrier means for holding at least one product, housing means having an internal chamber and an opening open to said chamber and adapted to releasably receive through the opening the product carrier means to locate the product in said chamber, means for controlling environmental conditions in said chamber, said product being subjected to said environmental conditions, and lock means engageable with said carrier means to hold the carrier means on said housing means and retain the product in said chamber, comprising rod means rotatably mounted on said housing means adjacent said opening therein, arm means secured to the rod means and engageable with said carrier means, and power means connected to said rod means operable to move said arm means into engagement with the carrier means to hold the carrier means on the housing means.

18. An apparatus for exposing products to selected environmental conditions comprising product carrier means for holding at least one product, housing means having an internal chamber and an opening open to said chamber to receive therethrough the product carrier and to locate product in the chamber, the chamber including screen means comprising a length of flexible material extending in a vertical plane from one side of the opening to the opposite side, and mounting means mounting the screen to the chamber and allowing the screen to be displaced inwardly of the chamber as the product carrier is received in the opening, the mounting means comprising rollers mounted on one or both sides of the opening and upon which a portion of the flexible material is rolled.