Protective hood for pelleting presses

Details Protective hood for pelleting presses Protective hood for pelleting presses

1976-05-05

1977-10-11

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Including ventilating type hood or chamber encasing a...

425151, 425352, 425211, B29C 300

Patent

active

040532666

ABSTRACT:
A protective hood for a tablet compressing machine includes a heavy cover plate 12 resiliently supported on the top of the machine frame 11, vertical support members 14, hinged windows 16 secured to the support members by locks 21, and acoustical absorption plates 15 above and below the windows. Environmental integrity is implemented by channel members 17 around the edges of the support members and provided with chambers 18 kept at a positive pressure through inlets 19. The chambers are closed by rubber seals 20 around the edges of the windows 16.

REFERENCES:
patent: 2068619 (1937-01-01), Bailey
patent: 2254262 (1941-09-01), Bratring
patent: 2912716 (1959-11-01), Frownfelter et al.
patent: 3555730 (1971-01-01), Brink
Doughnut Corporation of America (Publication).

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