Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Projectile backstop
Patent
1991-02-08
1992-03-10
Shapiro, Paul E.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Projectile backstop
43 6, 403349, F42B 608
Patent
active
050944649
ABSTRACT:
A bowfishing arrow includes a nock assembly that is readily manipulated to allow for the quick removal and re-attachment to the rear end of the same or another arrow shaft. The nock assembly is provided with a forwardmost elongated plug insertable within a socket or bore within the rear of the arrow shaft while guidance and locking together of the components is achieved through a radial pin on the nock assembly plug engageable within a multi-directional slot arrangement. Short of achieving a fully assembled condition, a compressible member is engaged and thereafter produces a constant biasing force that in addition to assuring a rigid, rattle-free attachment, also maintains the components in a locked position. Removal of the nock assembly requires a positive forward displacement of the nock assembly relative the arrow shaft against the force of the compressible member prior to a compound angular and axial movement between the components.
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patent: 213976 (1879-04-01), Coloney
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patent: 4518162 (1985-05-01), Oates
patent: 4645211 (1987-02-01), Beiter
Litman Richard C.
Shapiro Paul E.
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