Molded-in boat grip

Patent metadata

Field	Value
Publication number	US-11124275-B2
Application number	US-202016865945-A
Country	US
Kind code	B2
Filing date	May 4, 2020
Priority date	Aug 26, 2016
Publication date	Sep 21, 2021
Grant date	Sep 21, 2021

Abstract

In one example, a method includes positioning, within a mold, a device with a movable element that defines a portion of a volume, and the volume is contained within the mold, as part of a molding process, at least partly defining a molded watercraft by introducing plastic into the mold, disposing the plastic about the movable element, and with the movable element, excluding the plastic from the portion of the volume that is defined by the movable element so as to define a recess and an undercut that are integral with the watercraft and extend lengthwise with respect to a centerline of the watercraft, and the recess and undercut are integral, and communicate, with each other.

First claim

What is claimed is:

1. A method, comprising:
positioning, within a mold, a device with a movable element that defines a portion of a volume, and the volume is contained within the mold;
as part of a molding process, at least partly defining a molded watercraft by introducing plastic into the mold;
disposing the plastic about the movable element;
with the movable element, excluding the plastic from the portion of the volume that is defined by the movable element so as to define a recess and an undercut that are integral with the watercraft and extend lengthwise with respect to a centerline of the watercraft, and the recess and undercut are integral, and communicate, with each other; and
initiating retraction of the movable element from the recess by moving the movable element only laterally in the recess until the movable element is positioned to be removed from the recess.

2. The method as recited in claim 1 , wherein the molding process is one of a blow-molding process, roto-molding process, vacuum molding process, twin sheet molding process, or drape molding process.

3. The method as recited in claim 1 , wherein the watercraft is a unitary single-piece structure in the form of either a kayak or a paddleboard.

4. The method as recited in claim 1 , wherein the recess and the undercut collectively form a portion of a molded-in grip of the watercraft.

5. The method as recited in claim 1 , wherein the recess and the undercut are formed at the same time.

6. The method as recited in claim 1 , wherein the volume defines an additional undercut that communicates with the undercut by way of the recess, and the additional undercut is integral with the watercraft.

7. The method as recited in claim 6 , wherein the undercut and the another undercut are disposed on opposite respective sides of the centerline of the watercraft.

8. The method as recited in claim 1 , wherein the recess and the undercut share a common floor.

9. The method as recited in claim 1 , wherein the recess and undercut are collectively sized and configured to receive a portion of hand of a user.

10. The method as recited in claim 1 , wherein the undercut is positioned outboard of a portion of the recess.

11. A method, comprising:
positioning, within a mold, a device with a first and second movable elements that collectively define a portion of a volume, and the volume is contained within the mold;
as part of a blow-molding process, at least partly defining a unified, single-piece blow-molded watercraft by introducing plastic into the mold;
disposing the plastic about the first and second movable elements;
with the first and second movable elements, excluding the plastic from the portion of the volume that is defined by the first and second movable elements so as to define a recess and two undercuts that are integral with the blow-molded watercraft, and the two undercuts communicate with each other by way of the recess, and the recess is integral with the two undercuts; and
preparing the first and second movable elements for retraction from the recess by moving, linearly only, the first and second movable elements to respective positions where the first and second movable elements are retractable from the recess.

12. The method as recited in claim 11 , wherein the undercuts are disposed on opposite respective sides of the recess.

13. The method as recited in claim 11 , wherein the recess and two undercuts are formed at the same time.

14. The method as recited in claim 11 , wherein the recess and first and second undercuts collectively form a molded-in grip of the blow-molded watercraft.

15. The method as recited in claim 11 , wherein the first and second undercuts and the recess share a common floor.

16. The method as recited in claim 11 , wherein the first and second undercuts extend laterally away from the recess.

17. The method as recited in claim 11 , wherein a wall of one of the undercuts is laterally spaced apart from the recess.

18. The method as recited in claim 11 , wherein the recess is relatively deeper than the first and second undercuts.

19. The method as recited in claim 11 , wherein a length of the recess is relatively shorter than a length of either of the first and second undercuts.

Assignees

• Lifetime Prod Inc

Inventors

• Robbins Samuel S
• Norman Dennis Jay

Classifications

• B63B34/20 Primary

  Canoes, kayaks or the like · CPC title

• B63B32/70 Primary

  Accessories not specially adapted for a particular type of board, e.g. paddings or buoyancy elements · CPC title

• B63B32/40

  Twintip boards; Wakeboards; Surfboards; Windsurfing boards; Paddle boards, e.g. SUP boards; Accessories specially adapted therefor · CPC title

• B63B34/21

  characterised by constructional features · CPC title

• B29C49/54 Primary

  for undercut articles · CPC title