Patents by Inventor Per O. Weman
Per O. Weman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4763924Abstract: A safety device is disclosed which is incorporated in a seat for a motor vehicle. The seat includes a seat frame and is slidably mounted for forward and backward movement. The seat is retained in a predetermined position by retaining means which are adapted to be released when the seat is subjected to predetermined deceleration forces is that the seat may then slide forward. The safety device has actuating means which are adapted to actuate the safety device as the car seat slides forward subsequent to the release of the retaining means.Type: GrantFiled: November 28, 1986Date of Patent: August 16, 1988Assignee: Autoliv Development AB.Inventors: Mats A. Karlin, Per O. Weman
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Patent number: 4473242Abstract: The belt system, advantageously including a retractor (13) mounted on the seat (1) and directly involving the lap belt section (8), comprises an attachment buckle (7) connected to its anchor point (10) by an expandable link device (11), which normally permits a range of movement of buckle (7) away from anchor point (10) or toward the latter (for example by means of a return spring), but provided with means to oppose the extraction of the buckle (7) under predetermined conditions of acceleration of the vehicle and/or of the belt.Type: GrantFiled: June 7, 1982Date of Patent: September 25, 1984Assignee: N. V. Klippan S.A.Inventor: Per O. Weman
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Patent number: 4457251Abstract: Apparatus to indicate the load on a restraining device subject to tensile loading, especially for a safety belt, the restraining device having an opening for communication with a restraining element, such as a seat belt, and being formed of two parts having different tensile strengths. The parts are displaceable with respect to each other upon loading of the restraining device in tension above a predetermined amount and one of the parts is provided with an indicator sign which becomes visible upon such displacement.Type: GrantFiled: March 2, 1979Date of Patent: July 3, 1984Assignee: N. V. Klippan S.A.Inventors: Per O. Weman, Fred F. Neumann
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Patent number: 4413794Abstract: A locking mechanism for seat belt retractors responding to movement or accelerations of a vehicle, including a freely movable inertia body and a pivotable pawl, in which a mechanism on the pawl can engage the inertia body and movement of the inertia body is limited by a means arranged next to the inertia body.Type: GrantFiled: November 30, 1981Date of Patent: November 8, 1983Assignee: N.V. Klippan S.A.Inventor: Per O. Weman
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Patent number: 4306735Abstract: An improved belt clamp apparatus for a vehicle occupant safety restraint system includes: a lever, a clamp bar, a mounting device for movably mounting the bar on the lever, a crest on the bar, and a first spring for biasing the lever to a non-clamping position. The bar is movable on the crest for applying a substantially uniform force over an area of contact on a safety belt. The belt clamp apparatus may be used in a variety of ways in an improved occupant restraint system such as to provide: a belt sensitive restraint system, a vehicle sensitive restraint system, a dual sensitive restraint system, or a force limiting restraint system. The invention also relates to a method for absorbing unwinding force and a method for reducing undesired unwinding of the belt.Type: GrantFiled: February 8, 1979Date of Patent: December 22, 1981Assignee: Allied Chemical CorporationInventors: Robert C. Pfeiffer, Robert L. Stephenson, Per O. Weman
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Patent number: 4293105Abstract: A reel type safety seat belt retractor in which a pawl is triggered to engage a ratchet wheel, serving as a reel flange, by an inertial device sensitive to an accelerated movement of the reel, wherein the inertial device has two levels of sensitivity, a low level to prevent the triggering of the pawl under all normal conditions of belt withdrawal for buckling, and a second level of high sensitivity which prevails after the belt webbing has been buckled about the passenger.This is accomplished by means of a biasing spring shared by both a webbing follower and the inertial device, and by a clutch which rotated when the webbing in initially withdrawn to restrain the webbing follower and the attached spring bias in a condition of high tension for the low level of sensitivity.Type: GrantFiled: May 19, 1978Date of Patent: October 6, 1981Assignee: Allied Chemical CorporationInventor: Per O. Weman
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Patent number: 4216922Abstract: In a device for reducing spring tension in a belt strap, particularly in a belt retractor for safety belts in motor vehicles, comprising a winding shaft and a return spring secured in a housing, the device including means for producing a force acting against the tension of the spring, the means being couplable with the winding shaft through a coupling means, the improvement comprising a spring housing mounted so as to be freely rotatable on the shaft, a pivot bearing of a wheel rotatably disposed on the spring housing, the wheel being in driving arrangement through the coupling means with the winding shaft and with the retractor housing, and a release member operable for releasing the coupling means.Type: GrantFiled: July 11, 1978Date of Patent: August 12, 1980Assignee: N.V. Klippan S.A.Inventor: Per O. Weman
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Patent number: 4185792Abstract: This invention relates to a locking device for a safety belt retractor comprising a reel shaft and a ratchet wheel provided with locking teeth and engageable with pawls, characterized by the fact that a synchronization disk (5) bearing actuating parts (16) engageable with a pawl (13) and provided with at least a first disengagement device (9), and an axially undisplaceable ratchet wheel (4) with at least a complementary second disengagement device (8) are disposed on said reel shaft (1), that when the synchronization disk (5) and the ratchet wheel (4) rotate relative to each other, at least a part of the synchronization disk (5) is deformed or displaced to actuate locking by the pawl (13) and that actuation chronologically precedes locking.Type: GrantFiled: October 26, 1977Date of Patent: January 29, 1980Assignee: N.V. Klippan S.A.Inventor: Per O. Weman
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Patent number: 4126325Abstract: Inflatable air bag having one or several air intake openings for drawing air from the passenger compartment into the air bag, and closure means for automatically sealing the air intake openings after inflation of the air bag. The closure means may consist of bands, tubes, flaps and the like.Type: GrantFiled: June 29, 1976Date of Patent: November 21, 1978Assignee: Klippan GmbH HamburgInventor: Per O. Weman
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Patent number: 4109935Abstract: A fastening for holding the loop of a safety belt in motor vehicles comprises a clasp formed with an arm of which the underside defines a slot extending lengthwise of the vehicle for the insertion thereinto of the loop, the open end of said slot being closed by a catch which is openable by a push button mounted on the clasp base.Type: GrantFiled: December 27, 1976Date of Patent: August 29, 1978Assignee: Sigmatex, A.G.Inventor: Per O. Weman