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US3938792: Protective end covers for the resilient suspension members of trampoline beds and the like


Filing Information

Inventor(s) George P. Nissen ·
Assignee(s) Nissen Corporation ·
Attorney/Agent(s) Haven E. Simmons ·
Primary Examiner James B. Marbert ·
Application Number US5515823
Filing date 10/18/1974
Issue date 02/17/1976
Predicted expiration date 04/22/1994
U.S. Classifications 267/69  · 267/74  ·
International Classifications F16F 146  ·
Kind CodeA
International Classifications 26769;73;74;129 ·
Related U.S. Application DataThis is a division of application Ser. No. 462,662 filed Apr. 22, 1974 now U.S. Pat. No. 3,869,120 issued Mar. 4, 1975.
1 Claims, No Drawings


The hooked ends of the springs or like members by which the bed of a trampoline or similar apparatus is suspended from its frame are equipped with protective sleeves of flexible material. The sleeves are split at their outer ends to form two flaps, one of which covers the exposed ends of the hooks to prevent injury to a performer inadvertently striking them, while the two flaps together are foldable back onto the sleeve to assist hooking and unhooking of the springs to and from the bed and the frame.

Independent Claims | See all claims (1)

  1. 1.1. For use with apparatus for rebound of a performer in connection with trampoline, gymnastic and like activities, the apparatus having a frame and a flexible bed resiliently suspended from the frame by a plurality of resiliently extensible members between opposed marginal edges of the frame and the bed, each extensible member having an end portion and an outer hook removably connected to one of said marginal edges, the hook extending transversely across the adjacent end portion of the extensible member and terminating in an exposed hook end subject to contact by a performer, a protective device comprising: a flexible sleeve having two longitudinally adjacent portions, the first portion being adapted to encompass said member end portion to locate the sleeve relative to the extensible member, the wall of the second sleeve portion having a pair of slits therein extending in a longitudinal direction inwardly from the outer end thereof to form a pair of flap portions foldable back toward the first sleeve portion, one of the flap portions being adapted to protectively overlie said hook end.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US1229441 Griffin Jun 1917
US3041060 JACOB JACOBSEN Jacobsen Jun 1962
US3233895 GRELLE ALBERT C Grelle et al. Feb 1966

Patent Family

The current document is not in a family.