Mold for making an arm rest for a chair with a tubular passageway therein

• US 5,083,912 A
• Filed: 07/24/1990
• Issued: 01/28/1992
• Est. Priority Date: 10/27/1988
• Status: Expired due to Fees

• Current Assignee: Stephen Beck
• Original Assignee: Stephen Beck
• Inventors: Beck, Stephen
• Primary Examiner(s): Woo, Jay H.
• Assistant Examiner(s): Nguyen, Khanh P.
• Application Number:
  US07/557,714
• Time in Patent Office: 553 Days
• Field of Search: 249/63, 249/64, 249/96, 249/97, 249/141, 249/142, 249/170, 249/177, 249/184, 249/186, 425/4 R, 425/817 R, 425/577, 425/117, 425/546, 425/812, 425/DIG. 10
• US Class Current: 425/117
• CPC Class Codes: B29C 44/1266 the preformed part being completely encapsulated, e.g. for packaging purposes or as reinforcement
• CPC Class Codes: B60N 2/797 for use as electrical control means, e.g. switches
• CPC Class Codes: Y10S 425/812 Venting

Abstract

This invention relates to a mold for making a formed chair arm with passages therein.

Claims

1. A mold for making a foamed chair arm having an internal tubular passageway therewithin comprising:

a first mold form hingedly attached to a second mold form;

each mold form having an open cavity therein, which cavities are juxtaposed to each other to define the dimensions of the foamed chair arm when the mold forms are rotated to closed position about the hinge;

a nipple fixed to an inner surface of one mold form;

an opening means in one mold form for receiving an insert piece which has a portion extending into the mold;

a cooperating opening means in the mold form not having the opening means for also receiving the insert piece; and

a hollow tube means attached to the nipple and to the extending portion of the insert piece to provide a hollow mold form within the cavities for creating the tubular passageway within the arm by separation from the nipple and extending portion;

said opening means and cooperating means providing sealing of the insert piece in the mold when the two mold forms are in their closed positions.

2. The mold of claim 1, wherein the opening means has a lip means for retaining the insert in the opening means.

3. The mold of claim 2, wherein the opening means extends for a distance equal to a width of the cavity in the mold form.

4. The mold of claim 2, wherein the cavity in each mold form being graduated in depth from one deep end to another shallow end, and wherein when the mold is closed the deep end of one cavity lies juxtaposed the shallow end of the other cavity.

5. The mold of claim 3, wherein the cavity in each mold form being graduated in depth from one deep end to another shallow end, and wherein when the mold is closed the deep end of one cavity lies juxtaposed the shallow end of the other cavity.

6. The mold of claim 1, wherein the cavity in each mold form being graduated in depth from one deep end to another shallow end, and wherein when the mold is closed the deep end of one cavity lies juxtaposed the shallow end of the other cavity.

7. The mold of claim 1, wherein the cavity in one mold form has vents at one end thereof.

8. The mold of claim 1, wherein the cavity in one mold form has an opening for receiving a securement plug of a reinforcement member of the product to be molded.