Plant husbandry – Cover – shade – or screen – Open top
Patent
1987-04-10
1988-06-14
Hafer, Robert A.
Plant husbandry
Cover, shade, or screen
Open top
383 37, 383 72, 47 78, A01G 1310, B65D 3000
Patent
active
047502924
ABSTRACT:
A plant guard for protecting plants against pest attack. The guard (10) comprises a knitted hose-like net structure which is intended to form a casing around the guard. Connected to the bottom part (13) of the net structure are mutually crossing hang-threads (14) which form the bottom of the guard. A closure thread (17) is located at the other end of the net structure, this thread when tightened gathering together the upper part of the guard. The closure thread (17) is knitted integrally with the net structure and comprises a thread of high surface friction, so as to be self-locking when tension is released. At least one loop (18) formed from the closure thread is attached to the bottom end (15) of an adjacent, corresponding plant guard, such that the closure thread (17) is drawn together when the two plant guards are separated one from the other. The application also describes a method and a circular knitting machine for manufacturing such a plant guard.
REFERENCES:
patent: Re14318 (1917-06-01), Hayashi
patent: 735217 (1959-01-01), Robbins
patent: 1807819 (1931-06-01), Altgelt
patent: 1894506 (1933-01-01), Wilson
patent: 1926053 (1933-09-01), Morgan
patent: 1988886 (1935-01-01), Wilson
patent: 2989828 (1961-06-01), Warp
patent: 3184890 (1965-05-01), McKey
patent: 3322176 (1967-05-01), Geller
patent: 3380220 (1968-04-01), Jennings et al.
patent: 3662490 (1972-05-01), Childs
patent: 3709263 (1973-01-01), Jackson et al.
patent: 3788003 (1974-01-01), Creighton et al.
patent: 4006561 (1977-02-01), Thoma et al.
patent: 4016678 (1977-04-01), Larsen
patent: 4091925 (1978-05-01), Griffo et al.
patent: 4109442 (1978-08-01), Maasbach
patent: 4170097 (1979-10-01), Floct et al.
patent: 4333265 (1982-06-01), Arnold
patent: 4357884 (1982-11-01), Rast
von Essen, Carl, "Nagot alldeles extra mot snytbaggen" Skogen, 1983, No. 7, pp. 40-41.
DeMille Danton D.
Hafer Robert A.
Ljungman Nils H.
Strumpfabriken Vinetta Aktiebolag
LandOfFree
Plant guard and a method and machine for its manufacture does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plant guard and a method and machine for its manufacture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plant guard and a method and machine for its manufacture will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-497809