The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 1985
Filed:
Jun. 16, 1982
Arun K Bansal, Skokie, IL (US);
Other;
Abstract
An infant's swing is disclosed which has a simple construction including a stationary main frame and a reciprocable infant-swinging structure. The swing may be operated with a commercially available rechargeable or alkaline battery or transformer supplying current at no more than about 24 volts. The low voltage current is used to actuate a solenoid fixedly mounted on the main frame in a unique manner so as to use a compensating extensible spring. This spring drivingly engages an infant's seat while simultaneously compensating for the difference between the linear velocity of the solenoid's plunger and the angular velocity of hangers supporting the reciprocable seat. Current is supplied to the solenoid in pulses having a duration of less than about 0.5 second so as to conserve the battery. The swing may also be operated with a D-C transformer providing current at about 2 amperes and preferably 3 or 4 volts.