Peter D Courtois

48464333, Jul 11, 1989

Jul 11, 1988

7/217109

Peter D. Courtois - Centerville OH
Roy L. Edgar - Springboro OH

Dayton Superior Corporation - Miamisburg OH

E04G 1716

248235

An adjustable hanger for supporting a concrete form which includes a first bracket having a downwardly-extending portion for engaging an edge of an I beam flange, a second bracket for engaging an I beam flange, and a threaded rod screwed into and extending between the first and second brackets so that the second bracket can be adjusted in spacing from the first bracket to enable the hanger to accommodate a variety of I beam flange widths. In the preferred embodiment, the second bracket includes an upwardly extending portion having a wedge-shaped slot and an outer arcuate bearing surface. The upwardly extending portion receives a bolt for supporting cantilevered formwork and the bolt is retained within the slot by a nut which rests against the arcuate bearing surface. The retained bolt can be pivoted throughout a range of angular orientations relative to the second bracket as the circumstances of use may require. The first and second brackets each include a through bore for receiving additional formwork supporting bolts that are oriented substantially perpendicularly to the threaded connecting rod.

RE338818, Apr 14, 1992

Oct 30, 1990

7/607205

Peter D. Courtois - Centerville OH
Robert E. Truitt - Carson CA

Dayton Superior Corporation - Miamisburg OH

B66C 136
B66C 166

294 89

An apparatus for lifting precast concrete panels includes a lifting body having a forward portion adapted to engage in an anchor head, a latch yoke pivotally connected to a rearward end of the lifting body and including a safety latch cooperating with the forward portion. Iadd. of the lifting body. Iaddend. to lock an anchor head to the forward portion, a release yoke pivotally attached to the lifting body. Iadd. for movement between locked and release positions. Iaddend. and including a cam. [. roller for urging. ]. . Iadd. effective during movement of the release yoke to its release position to cause. Iaddend. the latch yoke to pivot to a release portion, and a lifting bail pivotally attached to the forward portion. The. [. lifting body. ]. . Iadd. release yoke. Iaddend.

40005917, Jan 4, 1977

Aug 4, 1975

5/601301

Peter D. Courtois - Oceanside CA

Superior Concrete Accessories, Inc. - San Diego CA

E04B 138
E04B 160

52125

A holder adapted for supporting an anchor insert to be embedded in a concrete slab, such insert including a shank having an enlarged disc-like foot on one end thereof, the holder comprising an enclosure, a plurality of legs extending from the enclosure, and a foot at the outer end of each leg and adapted with the remaining feet to support the enclosure in spaced relation above the floor of a concrete form, such enclosure including a seat adapted for supporting an insert with the foot of the insert seated thereon, and means adapted to engage the insert when supported on the seat for limiting tilting movement of the insert.

D2455749, Aug 30, 1977

Nov 5, 1975

5/629039

Peter D. Courtois - Oceanside CA
Charles J. Sharav - Chicago IL

Superior Concrete Accessories, Inc.

D0808

D 8385

47009799, Oct 20, 1987

Oct 16, 1986

6/920103

Peter D. Courtois - Centerville OH
Robert E. Truitt - Carson CA

Dayton Superior Corporation - Miamisburg OH

B66C 136
B66C 166

294 89

An apparatus for lifting precast concrete panels includes a lifting body having a forward portion adapted to engage in an anchor head, a latch yoke pivotally connected to a rearward end of the lifting body and including a safety latch cooperating with the forward portion to lock an anchor head to the forward portion, a release yoke pivotally attached to the lifting body and including a cam roller for urging the latch yoke to pivot to a release position, and a lifting bail pivotally attached to the forward portion. The lifting body includes a safety pin block extending upwardly from a rearward portion thereof adjacent to the rearward end of the latch yoke. The latch yoke and safety pin block include bores which are in registry with each other when the apparatus is oriented to a locked position. A safety pin is inserted into the bores and prevents relative pivotal movement between the latch yoke and lifting body, and is removable from the bore by a lanyard which is pulled by a worker. '.

40120244, Mar 15, 1977

Feb 3, 1976

5/654948

Peter D. Courtois - Oceanside CA

Superior Concrete Accessories, Inc. - Franklin Park IL

E01C 1104

249 9

A divider strip with an upstanding screed for use with a pouring of a pair of adjoining concrete slabs, such strip being designed to be supported by a horizontal series of laterally spaced stakes which are set below a predetermined grade level, and being adapted when in its operative position to have wet concrete poured on opposite sides thereof in order to form a pair of adjoining slabs with a key joint therebetween. A dual reentrant bend at the upper marginal portion of the strip establishes a downwardly facing locking channel for the upper ends of the stakes and also establishes an upstanding screed which extends upwardly to the grade level and is for the most part of single thickness.

47265620, Feb 23, 1988

Jul 22, 1986

6/889060

Peter D. Courtois - Centerville OH
Roy L. Edgar - Springboro OH
Arthur G. Mess - Centerville OH

Dayton Superior Corporation - Miamisburg OH

E04G 1700
B28B 716

249 91

An apparatus for casting an anchor in a concrete unit in which the head of the anchor is gripped by a plurality of resiliently-biased gripper elements pivotally attached to a cylindrical mandrel, the mandrel is drawn within the bore of a void former sleeve having a hemispherical outer end, and the sleeve is withdrawn within the channel of a support sleeve attached to associated formwork such that the hemispherical outer end protrudes from the formwork. After the concrete unit is cast, the void former sleeve is withdrawn from the unit so that the outer end leaves a hemispherical void in the unit and the mandrel is disengaged from the head of the anchor, leaving the head exposed within the void. The support sleeve includes a spring-loaded detent pin which is positioned to engage detent slots in the void former sleeve and a detent recess in the mandrel to hold the sleeve and mandrel in position during casting and to hold the sleeve in position as the anchor is attached to the mandrel.